Merge branch 'master' into connector_plugin

59 files changed, 2957 insertions, 1365 deletions

diff --git a/OpenSim/Capabilities/Handlers/GetTexture/GetTextureHandler.cs b/OpenSim/Capabilities/Handlers/GetTexture/GetTextureHandler.cs
index 9b43a80..04cc33a 100644
--- a/OpenSim/Capabilities/Handlers/GetTexture/GetTextureHandler.cs
+++ b/OpenSim/Capabilities/Handlers/GetTexture/GetTextureHandler.cs
@@ -223,9 +223,9 @@ namespace OpenSim.Capabilities.Handlers
                     // sending back the last byte instead of an error status
                     if (start >= texture.Data.Length)
                     {
-                        m_log.DebugFormat(
-                            "[GETTEXTURE]: Client requested range for texture {0} starting at {1} but texture has end of {2}",
-                            texture.ID, start, texture.Data.Length);
+//                        m_log.DebugFormat(
+//                            "[GETTEXTURE]: Client requested range for texture {0} starting at {1} but texture has end of {2}",
+//                            texture.ID, start, texture.Data.Length);
 
                         // Stricly speaking, as per http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html, we should be sending back
                         // Requested Range Not Satisfiable (416) here.  However, it appears that at least recent implementations
diff --git a/OpenSim/Framework/Console/ConsoleUtil.cs b/OpenSim/Framework/Console/ConsoleUtil.cs
index 2612a50..a7cf0c0 100644
--- a/OpenSim/Framework/Console/ConsoleUtil.cs
+++ b/OpenSim/Framework/Console/ConsoleUtil.cs
@@ -34,7 +34,7 @@ using OpenMetaverse;
 
 public class ConsoleUtil
 {
-    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+//    private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
     public const string MinRawConsoleVectorValue = "-~";
     public const string MaxRawConsoleVectorValue = "~";
@@ -107,7 +107,7 @@ public class ConsoleUtil
 
         string semiDigestedConsoleVector = string.Join(VectorSeparator, semiDigestedComponents.ToArray());
 
-        m_log.DebugFormat("[CONSOLE UTIL]: Parsing {0} into OpenMetaverse.Vector3", semiDigestedConsoleVector);
+//        m_log.DebugFormat("[CONSOLE UTIL]: Parsing {0} into OpenMetaverse.Vector3", semiDigestedConsoleVector);
 
         return Vector3.TryParse(semiDigestedConsoleVector, out vector);
     }
diff --git a/OpenSim/Framework/IClientAPI.cs b/OpenSim/Framework/IClientAPI.cs
index 8a63bff..9856978 100644
--- a/OpenSim/Framework/IClientAPI.cs
+++ b/OpenSim/Framework/IClientAPI.cs
@@ -805,8 +805,23 @@ namespace OpenSim.Framework
         event Action<IClientAPI> OnRegionHandShakeReply;
         event GenericCall1 OnRequestWearables;
         event Action<IClientAPI, bool> OnCompleteMovementToRegion;
+
+        /// <summary>
+        /// Called when an AgentUpdate message is received and before OnAgentUpdate.
+        /// </summary>
+        /// <remarks>
+        /// Listeners must not retain a reference to AgentUpdateArgs since this object may be reused for subsequent AgentUpdates.
+        /// </remarks>
         event UpdateAgent OnPreAgentUpdate;
+
+        /// <summary>
+        /// Called when an AgentUpdate message is received and after OnPreAgentUpdate.
+        /// </summary>
+        /// <remarks>
+        /// Listeners must not retain a reference to AgentUpdateArgs since this object may be reused for subsequent AgentUpdates.
+        /// </remarks>
         event UpdateAgent OnAgentUpdate;
+
         event AgentRequestSit OnAgentRequestSit;
         event AgentSit OnAgentSit;
         event AvatarPickerRequest OnAvatarPickerRequest;
diff --git a/OpenSim/Framework/LandData.cs b/OpenSim/Framework/LandData.cs
index bf2ecf2..fc02f33 100644
--- a/OpenSim/Framework/LandData.cs
+++ b/OpenSim/Framework/LandData.cs
@@ -49,8 +49,8 @@ namespace OpenSim.Framework
         // use only one serializer to give the runtime a chance to
         // optimize it (it won't do that if you use a new instance
         // every time)
-        private static XmlSerializer serializer = new XmlSerializer(typeof (LandData));
-        
+        private static XmlSerializer serializer = new XmlSerializer(typeof(LandData));
+
         private Vector3 _AABBMax = new Vector3();
         private Vector3 _AABBMin = new Vector3();
         private int _area = 0;
@@ -65,11 +65,11 @@ namespace OpenSim.Framework
         private byte[] _bitmap = new byte[512];
         private string _description = String.Empty;
 
-        private uint _flags = (uint) ParcelFlags.AllowFly | (uint) ParcelFlags.AllowLandmark |
-                                (uint) ParcelFlags.AllowAPrimitiveEntry |
-                                (uint) ParcelFlags.AllowDeedToGroup | (uint) ParcelFlags.AllowTerraform |
-                                (uint) ParcelFlags.CreateObjects | (uint) ParcelFlags.AllowOtherScripts |
-                                (uint) ParcelFlags.SoundLocal | (uint) ParcelFlags.AllowVoiceChat;
+        private uint _flags = (uint)ParcelFlags.AllowFly | (uint)ParcelFlags.AllowLandmark |
+                                (uint)ParcelFlags.AllowAPrimitiveEntry |
+                                (uint)ParcelFlags.AllowDeedToGroup | (uint)ParcelFlags.AllowTerraform |
+                                (uint)ParcelFlags.CreateObjects | (uint)ParcelFlags.AllowOtherScripts |
+                                (uint)ParcelFlags.SoundLocal | (uint)ParcelFlags.AllowVoiceChat;
 
         private byte _landingType = 0;
         private string _name = "Your Parcel";
@@ -97,16 +97,36 @@ namespace OpenSim.Framework
         private bool _mediaLoop = false;
         private bool _obscureMusic = false;
         private bool _obscureMedia = false;
+        private float _dwell = 0;
+
+        /// <summary>
+        /// Traffic count of parcel
+        /// </summary>
+        [XmlIgnore]
+        public float Dwell
+        {
+            get
+            {
+                return _dwell;
+            }
+            set
+            {
+                _dwell = value;
+            }
+        }
 
         /// <summary>
         /// Whether to obscure parcel media URL
         /// </summary>
         [XmlIgnore]
-        public bool ObscureMedia {
-            get {
+        public bool ObscureMedia
+        {
+            get
+            {
                 return _obscureMedia;
             }
-            set {
+            set
+            {
                 _obscureMedia = value;
             }
         }
@@ -115,11 +135,14 @@ namespace OpenSim.Framework
         /// Whether to obscure parcel music URL
         /// </summary>
         [XmlIgnore]
-        public bool ObscureMusic {
-            get {
+        public bool ObscureMusic
+        {
+            get
+            {
                 return _obscureMusic;
             }
-            set {
+            set
+            {
                 _obscureMusic = value;
             }
         }
@@ -128,11 +151,14 @@ namespace OpenSim.Framework
         /// Whether to loop parcel media
         /// </summary>
         [XmlIgnore]
-        public bool MediaLoop {
-            get {
+        public bool MediaLoop
+        {
+            get
+            {
                 return _mediaLoop;
             }
-            set {
+            set
+            {
                 _mediaLoop = value;
             }
         }
@@ -141,11 +167,14 @@ namespace OpenSim.Framework
         /// Height of parcel media render
         /// </summary>
         [XmlIgnore]
-        public int MediaHeight {
-            get {
+        public int MediaHeight
+        {
+            get
+            {
                 return _mediaHeight;
             }
-            set {
+            set
+            {
                 _mediaHeight = value;
             }
         }
@@ -154,11 +183,14 @@ namespace OpenSim.Framework
         /// Width of parcel media render
         /// </summary>
         [XmlIgnore]
-        public int MediaWidth {
-            get {
+        public int MediaWidth
+        {
+            get
+            {
                 return _mediaWidth;
             }
-            set {
+            set
+            {
                 _mediaWidth = value;
             }
         }
@@ -167,11 +199,14 @@ namespace OpenSim.Framework
         /// Upper corner of the AABB for the parcel
         /// </summary>
         [XmlIgnore]
-        public Vector3 AABBMax {
-            get {
+        public Vector3 AABBMax
+        {
+            get
+            {
                 return _AABBMax;
             }
-            set {
+            set
+            {
                 _AABBMax = value;
             }
         }
@@ -179,11 +214,14 @@ namespace OpenSim.Framework
         /// Lower corner of the AABB for the parcel
         /// </summary>
         [XmlIgnore]
-        public Vector3 AABBMin {
-            get {
+        public Vector3 AABBMin
+        {
+            get
+            {
                 return _AABBMin;
             }
-            set {
+            set
+            {
                 _AABBMin = value;
             }
         }
@@ -191,11 +229,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Area in meters^2 the parcel contains
         /// </summary>
-        public int Area {
-            get {
+        public int Area
+        {
+            get
+            {
                 return _area;
             }
-            set {
+            set
+            {
                 _area = value;
             }
         }
@@ -203,11 +244,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// ID of auction (3rd Party Integration) when parcel is being auctioned
         /// </summary>
-        public uint AuctionID {
-            get {
+        public uint AuctionID
+        {
+            get
+            {
                 return _auctionID;
             }
-            set {
+            set
+            {
                 _auctionID = value;
             }
         }
@@ -215,11 +259,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// UUID of authorized buyer of parcel.  This is UUID.Zero if anyone can buy it.
         /// </summary>
-        public UUID AuthBuyerID {
-            get {
+        public UUID AuthBuyerID
+        {
+            get
+            {
                 return _authBuyerID;
             }
-            set {
+            set
+            {
                 _authBuyerID = value;
             }
         }
@@ -227,11 +274,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Category of parcel.  Used for classifying the parcel in classified listings
         /// </summary>
-        public ParcelCategory Category {
-            get {
+        public ParcelCategory Category
+        {
+            get
+            {
                 return _category;
             }
-            set {
+            set
+            {
                 _category = value;
             }
         }
@@ -239,11 +289,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Date that the current owner purchased or claimed the parcel
         /// </summary>
-        public int ClaimDate {
-            get {
+        public int ClaimDate
+        {
+            get
+            {
                 return _claimDate;
             }
-            set {
+            set
+            {
                 _claimDate = value;
             }
         }
@@ -251,11 +304,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// The last price that the parcel was sold at
         /// </summary>
-        public int ClaimPrice {
-            get {
+        public int ClaimPrice
+        {
+            get
+            {
                 return _claimPrice;
             }
-            set {
+            set
+            {
                 _claimPrice = value;
             }
         }
@@ -263,11 +319,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Global ID for the parcel.  (3rd Party Integration)
         /// </summary>
-        public UUID GlobalID {
-            get {
+        public UUID GlobalID
+        {
+            get
+            {
                 return _globalID;
             }
-            set {
+            set
+            {
                 _globalID = value;
             }
         }
@@ -275,11 +334,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Unique ID of the Group that owns
         /// </summary>
-        public UUID GroupID {
-            get {
+        public UUID GroupID
+        {
+            get
+            {
                 return _groupID;
             }
-            set {
+            set
+            {
                 _groupID = value;
             }
         }
@@ -287,11 +349,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Returns true if the Land Parcel is owned by a group
         /// </summary>
-        public bool IsGroupOwned {
-            get {
+        public bool IsGroupOwned
+        {
+            get
+            {
                 return _isGroupOwned;
             }
-            set {
+            set
+            {
                 _isGroupOwned = value;
             }
         }
@@ -299,11 +364,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// jp2 data for the image representative of the parcel in the parcel dialog
         /// </summary>
-        public byte[] Bitmap {
-            get {
+        public byte[] Bitmap
+        {
+            get
+            {
                 return _bitmap;
             }
-            set {
+            set
+            {
                 _bitmap = value;
             }
         }
@@ -311,11 +379,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Parcel Description
         /// </summary>
-        public string Description {
-            get {
+        public string Description
+        {
+            get
+            {
                 return _description;
             }
-            set {
+            set
+            {
                 _description = value;
             }
         }
@@ -323,11 +394,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Parcel settings.  Access flags, Fly, NoPush, Voice, Scripts allowed, etc.  ParcelFlags
         /// </summary>
-        public uint Flags {
-            get {
+        public uint Flags
+        {
+            get
+            {
                 return _flags;
             }
-            set {
+            set
+            {
                 _flags = value;
             }
         }
@@ -336,11 +410,14 @@ namespace OpenSim.Framework
         /// Determines if people are able to teleport where they please on the parcel or if they 
         /// get constrainted to a specific point on teleport within the parcel
         /// </summary>
-        public byte LandingType {
-            get {
+        public byte LandingType
+        {
+            get
+            {
                 return _landingType;
             }
-            set {
+            set
+            {
                 _landingType = value;
             }
         }
@@ -348,11 +425,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Parcel Name
         /// </summary>
-        public string Name {
-            get {
+        public string Name
+        {
+            get
+            {
                 return _name;
             }
-            set {
+            set
+            {
                 _name = value;
             }
         }
@@ -360,11 +440,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Status of Parcel, Leased, Abandoned, For Sale
         /// </summary>
-        public ParcelStatus Status {
-            get {
+        public ParcelStatus Status
+        {
+            get
+            {
                 return _status;
             }
-            set {
+            set
+            {
                 _status = value;
             }
         }
@@ -372,11 +455,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Internal ID of the parcel.  Sometimes the client will try to use this value
         /// </summary>
-        public int LocalID {
-            get {
+        public int LocalID
+        {
+            get
+            {
                 return _localID;
             }
-            set {
+            set
+            {
                 _localID = value;
             }
         }
@@ -384,11 +470,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Determines if we scale the media based on the surface it's on
         /// </summary>
-        public byte MediaAutoScale {
-            get {
+        public byte MediaAutoScale
+        {
+            get
+            {
                 return _mediaAutoScale;
             }
-            set {
+            set
+            {
                 _mediaAutoScale = value;
             }
         }
@@ -396,11 +485,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Texture Guid to replace with the output of the media stream
         /// </summary>
-        public UUID MediaID {
-            get {
+        public UUID MediaID
+        {
+            get
+            {
                 return _mediaID;
             }
-            set {
+            set
+            {
                 _mediaID = value;
             }
         }
@@ -408,11 +500,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// URL to the media file to display
         /// </summary>
-        public string MediaURL {
-            get {
+        public string MediaURL
+        {
+            get
+            {
                 return _mediaURL;
             }
-            set {
+            set
+            {
                 _mediaURL = value;
             }
         }
@@ -432,11 +527,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// URL to the shoutcast music stream to play on the parcel
         /// </summary>
-        public string MusicURL {
-            get {
+        public string MusicURL
+        {
+            get
+            {
                 return _musicURL;
             }
-            set {
+            set
+            {
                 _musicURL = value;
             }
         }
@@ -445,11 +543,14 @@ namespace OpenSim.Framework
         /// Owner Avatar or Group of the parcel.  Naturally, all land masses must be
         /// owned by someone
         /// </summary>
-        public UUID OwnerID {
-            get {
+        public UUID OwnerID
+        {
+            get
+            {
                 return _ownerID;
             }
-            set {
+            set
+            {
                 _ownerID = value;
             }
         }
@@ -457,11 +558,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// List of access data for the parcel.  User data, some bitflags, and a time
         /// </summary>
-        public List<LandAccessEntry> ParcelAccessList {
-            get {
+        public List<LandAccessEntry> ParcelAccessList
+        {
+            get
+            {
                 return _parcelAccessList;
             }
-            set {
+            set
+            {
                 _parcelAccessList = value;
             }
         }
@@ -469,11 +573,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// How long in hours a Pass to the parcel is given
         /// </summary>
-        public float PassHours {
-            get {
+        public float PassHours
+        {
+            get
+            {
                 return _passHours;
             }
-            set {
+            set
+            {
                 _passHours = value;
             }
         }
@@ -481,11 +588,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// Price to purchase a Pass to a restricted parcel
         /// </summary>
-        public int PassPrice {
-            get {
+        public int PassPrice
+        {
+            get
+            {
                 return _passPrice;
             }
-            set {
+            set
+            {
                 _passPrice = value;
             }
         }
@@ -493,11 +603,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// When the parcel is being sold, this is the price to purchase the parcel
         /// </summary>
-        public int SalePrice {
-            get {
+        public int SalePrice
+        {
+            get
+            {
                 return _salePrice;
             }
-            set {
+            set
+            {
                 _salePrice = value;
             }
         }
@@ -506,11 +619,14 @@ namespace OpenSim.Framework
         /// Number of meters^2 in the Simulator
         /// </summary>
         [XmlIgnore]
-        public int SimwideArea {
-            get {
+        public int SimwideArea
+        {
+            get
+            {
                 return _simwideArea;
             }
-            set {
+            set
+            {
                 _simwideArea = value;
             }
         }
@@ -519,11 +635,14 @@ namespace OpenSim.Framework
         /// Number of SceneObjectPart in the Simulator
         /// </summary>
         [XmlIgnore]
-        public int SimwidePrims {
-            get {
+        public int SimwidePrims
+        {
+            get
+            {
                 return _simwidePrims;
             }
-            set {
+            set
+            {
                 _simwidePrims = value;
             }
         }
@@ -531,11 +650,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// ID of the snapshot used in the client parcel dialog of the parcel
         /// </summary>
-        public UUID SnapshotID {
-            get {
+        public UUID SnapshotID
+        {
+            get
+            {
                 return _snapshotID;
             }
-            set {
+            set
+            {
                 _snapshotID = value;
             }
         }
@@ -544,11 +666,14 @@ namespace OpenSim.Framework
         /// When teleporting is restricted to a certain point, this is the location 
         /// that the user will be redirected to
         /// </summary>
-        public Vector3 UserLocation {
-            get {
+        public Vector3 UserLocation
+        {
+            get
+            {
                 return _userLocation;
             }
-            set {
+            set
+            {
                 _userLocation = value;
             }
         }
@@ -557,11 +682,14 @@ namespace OpenSim.Framework
         /// When teleporting is restricted to a certain point, this is the rotation 
         /// that the user will be positioned
         /// </summary>
-        public Vector3 UserLookAt {
-            get {
+        public Vector3 UserLookAt
+        {
+            get
+            {
                 return _userLookAt;
             }
-            set {
+            set
+            {
                 _userLookAt = value;
             }
         }
@@ -570,11 +698,14 @@ namespace OpenSim.Framework
         /// Autoreturn number of minutes to return SceneObjectGroup that are owned by someone who doesn't own 
         /// the parcel and isn't set to the same 'group' as the parcel.
         /// </summary>
-        public int OtherCleanTime {
-            get {
+        public int OtherCleanTime
+        {
+            get
+            {
                 return _otherCleanTime;
             }
-            set {
+            set
+            {
                 _otherCleanTime = value;
             }
         }
@@ -582,11 +713,14 @@ namespace OpenSim.Framework
         /// <summary>
         /// parcel media description
         /// </summary>
-        public string MediaDescription {
-            get {
+        public string MediaDescription
+        {
+            get
+            {
                 return _mediaDescription;
             }
-            set {
+            set
+            {
                 _mediaDescription = value;
             }
         }
@@ -622,7 +756,7 @@ namespace OpenSim.Framework
             landData._mediaURL = _mediaURL;
             landData._musicURL = _musicURL;
             landData._ownerID = _ownerID;
-            landData._bitmap = (byte[]) _bitmap.Clone();
+            landData._bitmap = (byte[])_bitmap.Clone();
             landData._description = _description;
             landData._flags = _flags;
             landData._name = _name;
@@ -643,6 +777,7 @@ namespace OpenSim.Framework
             landData._obscureMedia = _obscureMedia;
             landData._simwideArea = _simwideArea;
             landData._simwidePrims = _simwidePrims;
+            landData._dwell = _dwell;
 
             landData._parcelAccessList.Clear();
             foreach (LandAccessEntry entry in _parcelAccessList)
diff --git a/OpenSim/Framework/Monitoring/BaseStatsCollector.cs b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
index 57a63ef..2903b6e 100644
--- a/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/BaseStatsCollector.cs
@@ -49,7 +49,11 @@ namespace OpenSim.Framework.Monitoring
                 Math.Round(GC.GetTotalMemory(false) / 1024.0 / 1024.0));
 
             sb.AppendFormat(
-                "OpenSim object memory churn : {0} MB/s\n",
+                "OpenSim last object memory churn    : {0} MB/s\n",
+                Math.Round((MemoryWatchdog.LastMemoryChurn * 1000) / 1024.0 / 1024, 3));
+
+            sb.AppendFormat(
+                "OpenSim average object memory churn : {0} MB/s\n",
                 Math.Round((MemoryWatchdog.AverageMemoryChurn * 1000) / 1024.0 / 1024, 3));
 
             sb.AppendFormat(
diff --git a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
index a23cf1f..c6010cd 100644
--- a/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
+++ b/OpenSim/Framework/Monitoring/MemoryWatchdog.cs
@@ -60,7 +60,7 @@ namespace OpenSim.Framework.Monitoring
         private static bool m_enabled;
 
         /// <summary>
-        /// Average memory churn in bytes per millisecond.
+        /// Last memory churn in bytes per millisecond.
         /// </summary>
         public static double AverageMemoryChurn
         {
@@ -68,6 +68,14 @@ namespace OpenSim.Framework.Monitoring
         }
 
         /// <summary>
+        /// Average memory churn in bytes per millisecond.
+        /// </summary>
+        public static double LastMemoryChurn
+        {
+            get { if (m_samples.Count > 0) return m_samples.Last(); else return 0; }
+        }
+
+        /// <summary>
         /// Maximum number of statistical samples.
         /// </summary>
         /// <remarks>
diff --git a/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs b/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs
index 8ac9090..aa86202 100644
--- a/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs
+++ b/OpenSim/Framework/Monitoring/SimExtraStatsCollector.cs
@@ -359,13 +359,19 @@ Asset service request failures: {3}" + Environment.NewLine,
                     inPacketsPerSecond, outPacketsPerSecond, pendingDownloads, pendingUploads, unackedBytes, totalFrameTime,
                     netFrameTime, physicsFrameTime, otherFrameTime, agentFrameTime, imageFrameTime));
 
-            foreach (KeyValuePair<string, Stat> kvp in StatsManager.RegisteredStats)
-            {
-                Stat stat = kvp.Value;
+            Dictionary<string, Dictionary<string, Stat>> sceneStats;
 
-                if (stat.Category == "scene" && stat.Verbosity == StatVerbosity.Info)
+            if (StatsManager.TryGetStats("scene", out sceneStats))
+            {
+                foreach (KeyValuePair<string, Dictionary<string, Stat>> kvp in sceneStats)
                 {
-                    sb.AppendFormat("Slow frames ({0}): {1}\n", stat.Container, stat.Value);
+                    foreach (Stat stat in kvp.Value.Values)
+                    {
+                        if (stat.Verbosity == StatVerbosity.Info)
+                        {
+                            sb.AppendFormat("{0} ({1}): {2}{3}\n", stat.Name, stat.Container, stat.Value, stat.UnitName);
+                        }
+                    }
                 }
             }
 
diff --git a/OpenSim/Framework/Monitoring/StatsManager.cs b/OpenSim/Framework/Monitoring/StatsManager.cs
index b5dc24f..31989e5 100644
--- a/OpenSim/Framework/Monitoring/StatsManager.cs
+++ b/OpenSim/Framework/Monitoring/StatsManager.cs
@@ -35,13 +35,23 @@ namespace OpenSim.Framework.Monitoring
     /// </summary>
     public class StatsManager
     {
+        // Subcommand used to list other stats.
+        public const string AllSubCommand = "all";
+
+        // Subcommand used to list other stats.
+        public const string ListSubCommand = "list";
+
+        // All subcommands
+        public static HashSet<string> SubCommands = new HashSet<string> { AllSubCommand, ListSubCommand };
+
         /// <summary>
-        /// Registered stats.
+        /// Registered stats categorized by category/container/shortname
         /// </summary>
         /// <remarks>
-        /// Do not add or remove from this dictionary.
+        /// Do not add or remove directly from this dictionary.
         /// </remarks>
-        public static Dictionary<string, Stat> RegisteredStats = new Dictionary<string, Stat>();
+        public static Dictionary<string, Dictionary<string, Dictionary<string, Stat>>> RegisteredStats
+            = new Dictionary<string, Dictionary<string, Dictionary<string, Stat>>>();
 
         private static AssetStatsCollector assetStats;
         private static UserStatsCollector userStats;
@@ -51,6 +61,75 @@ namespace OpenSim.Framework.Monitoring
         public static UserStatsCollector UserStats { get { return userStats; } }
         public static SimExtraStatsCollector SimExtraStats { get { return simExtraStats; } }
 
+        public static void RegisterConsoleCommands(ICommandConsole console)
+        {
+            console.Commands.AddCommand(
+                "General",
+                false,
+                "show stats",
+                "show stats [list|all|<category>]",
+                "Show statistical information for this server",
+                "If no final argument is specified then legacy statistics information is currently shown.\n"
+                    + "If list is specified then statistic categories are shown.\n"
+                    + "If all is specified then all registered statistics are shown.\n"
+                    + "If a category name is specified then only statistics from that category are shown.\n"
+                    + "THIS STATS FACILITY IS EXPERIMENTAL AND DOES NOT YET CONTAIN ALL STATS",
+                HandleShowStatsCommand);
+        }
+
+        public static void HandleShowStatsCommand(string module, string[] cmd)
+        {
+            ICommandConsole con = MainConsole.Instance;
+
+            if (cmd.Length > 2)
+            {
+                var categoryName = cmd[2];
+
+                if (categoryName == AllSubCommand)
+                {
+                    foreach (var category in RegisteredStats.Values)
+                    {
+                        OutputCategoryStatsToConsole(con, category);
+                    }
+                }
+                else if (categoryName == ListSubCommand)
+                {
+                    con.Output("Statistic categories available are:");
+                    foreach (string category in RegisteredStats.Keys)
+                        con.OutputFormat("  {0}", category);
+                }
+                else
+                {
+                    Dictionary<string, Dictionary<string, Stat>> category;
+                    if (!RegisteredStats.TryGetValue(categoryName, out category))
+                    {
+                        con.OutputFormat("No such category as {0}", categoryName);
+                    }
+                    else
+                    {
+                        OutputCategoryStatsToConsole(con, category);
+                    }
+                }
+            }
+            else
+            {
+                // Legacy
+                con.Output(SimExtraStats.Report());
+            }
+        }
+
+        private static void OutputCategoryStatsToConsole(
+            ICommandConsole con, Dictionary<string, Dictionary<string, Stat>> category)
+        {
+            foreach (var container in category.Values)
+            {
+                foreach (Stat stat in container.Values)
+                {
+                    con.Output(stat.ToConsoleString());
+                }
+            }
+        }
+
         /// <summary>
         /// Start collecting statistics related to assets.
         /// Should only be called once.
@@ -73,43 +152,100 @@ namespace OpenSim.Framework.Monitoring
             return userStats;
         }
 
+        /// <summary>
+        /// Registers a statistic.
+        /// </summary>
+        /// <param name='stat'></param>
+        /// <returns></returns>
         public static bool RegisterStat(Stat stat)
         {
+            Dictionary<string, Dictionary<string, Stat>> category = null, newCategory;
+            Dictionary<string, Stat> container = null, newContainer;
+
             lock (RegisteredStats)
             {
-                if (RegisteredStats.ContainsKey(stat.UniqueName))
-                {
-                    // XXX: For now just return false.  This is to avoid problems in regression tests where all tests
-                    // in a class are run in the same instance of the VM.
+                // Stat name is not unique across category/container/shortname key.
+                // XXX: For now just return false.  This is to avoid problems in regression tests where all tests
+                // in a class are run in the same instance of the VM.
+                if (TryGetStat(stat, out category, out container))
                     return false;
 
-//                    throw new Exception(
-//                        "StatsManager already contains stat with ShortName {0} in Category {1}", stat.ShortName, stat.Category);
-                }
+                // We take a copy-on-write approach here of replacing dictionaries when keys are added or removed.
+                // This means that we don't need to lock or copy them on iteration, which will be a much more
+                // common operation after startup.
+                if (container != null)
+                    newContainer = new Dictionary<string, Stat>(container);
+                else
+                    newContainer = new Dictionary<string, Stat>();
 
-                // We take a replace-on-write approach here so that we don't need to generate a new Dictionary
-                Dictionary<string, Stat> newRegisteredStats = new Dictionary<string, Stat>(RegisteredStats);
-                newRegisteredStats[stat.UniqueName] = stat;
-                RegisteredStats = newRegisteredStats;
+                if (category != null)
+                    newCategory = new Dictionary<string, Dictionary<string, Stat>>(category);
+                else
+                    newCategory = new Dictionary<string, Dictionary<string, Stat>>();
+
+                newContainer[stat.ShortName] = stat;
+                newCategory[stat.Container] = newContainer;
+                RegisteredStats[stat.Category] = newCategory;
             }
 
             return true;
         }
 
+        /// <summary>
+        /// Deregister a statistic
+        /// </summary>>
+        /// <param name='stat'></param>
+        /// <returns></returns
         public static bool DeregisterStat(Stat stat)
         {
+            Dictionary<string, Dictionary<string, Stat>> category = null, newCategory;
+            Dictionary<string, Stat> container = null, newContainer;
+
             lock (RegisteredStats)
             {
-                if (!RegisteredStats.ContainsKey(stat.UniqueName))
+                if (!TryGetStat(stat, out category, out container))
                     return false;
 
-                Dictionary<string, Stat> newRegisteredStats = new Dictionary<string, Stat>(RegisteredStats);
-                newRegisteredStats.Remove(stat.UniqueName);
-                RegisteredStats = newRegisteredStats;
+                newContainer = new Dictionary<string, Stat>(container);
+                newContainer.Remove(stat.UniqueName);
+
+                newCategory = new Dictionary<string, Dictionary<string, Stat>>(category);
+                newCategory.Remove(stat.Container);
+
+                newCategory[stat.Container] = newContainer;
+                RegisteredStats[stat.Category] = newCategory;
 
                 return true;
             }
         }
+
+        public static bool TryGetStats(string category, out Dictionary<string, Dictionary<string, Stat>> stats)
+        {
+            return RegisteredStats.TryGetValue(category, out stats);
+        }
+
+        public static bool TryGetStat(
+            Stat stat,
+            out Dictionary<string, Dictionary<string, Stat>> category,
+            out Dictionary<string, Stat> container)
+        {
+            category = null;
+            container = null;
+
+            lock (RegisteredStats)
+            {
+                if (RegisteredStats.TryGetValue(stat.Category, out category))
+                {
+                    if (category.TryGetValue(stat.Container, out container))
+                    {
+                        if (container.ContainsKey(stat.ShortName))
+                            return true;
+                    }
+                }
+            }
+
+            return false;
+        }
     }
 
     /// <summary>
@@ -157,9 +293,26 @@ namespace OpenSim.Framework.Monitoring
 
         public virtual double Value { get; set; }
 
+        /// <summary>
+        /// Constructor
+        /// </summary>
+        /// <param name='shortName'>Short name for the stat.  Must not contain spaces.  e.g. "LongFrames"</param>
+        /// <param name='name'>Human readable name for the stat.  e.g. "Long frames"</param>
+        /// <param name='unitName'>
+        /// Unit name for the stat.  Should be preceeded by a space if the unit name isn't normally appeneded immediately to the value.
+        /// e.g. " frames"
+        /// </param>
+        /// <param name='category'>Category under which this stat should appear, e.g. "scene".  Do not capitalize.</param>
+        /// <param name='container'>Entity to which this stat relates.  e.g. scene name if this is a per scene stat.</param>
+        /// <param name='verbosity'>Verbosity of stat.  Controls whether it will appear in short stat display or only full display.</param>
+        /// <param name='description'>Description of stat</param>
         public Stat(
             string shortName, string name, string unitName, string category, string container, StatVerbosity verbosity, string description)
         {
+            if (StatsManager.SubCommands.Contains(category))
+                throw new Exception(
+                    string.Format("Stat cannot be in category '{0}' since this is reserved for a subcommand", category));
+
             ShortName = shortName;
             Name = name;
             UnitName = unitName;
@@ -175,6 +328,12 @@ namespace OpenSim.Framework.Monitoring
         {
             return string.Format("{0}+{1}+{2}", container, category, shortName);
         }
+
+        public virtual string ToConsoleString()
+        {
+            return string.Format(
+                "{0}.{1}.{2} : {3}{4}", Category, Container, ShortName, Value, UnitName);
+        }
     }
 
     public class PercentageStat : Stat
@@ -192,7 +351,7 @@ namespace OpenSim.Framework.Monitoring
                 if (c == 0)
                     return 0;
 
-                return (double)Antecedent / c;
+                return (double)Antecedent / c * 100;
             }
 
             set
@@ -203,8 +362,13 @@ namespace OpenSim.Framework.Monitoring
 
         public PercentageStat(
             string shortName, string name, string category, string container, StatVerbosity verbosity, string description)
-            : base(shortName, name, " %", category, container, verbosity, description)
+            : base(shortName, name, "%", category, container, verbosity, description) {}
+
+        public override string ToConsoleString()
         {
+            return string.Format(
+                "{0}.{1}.{2} : {3:0.##}{4} ({5}/{6})",
+                Category, Container, ShortName, Value, UnitName, Antecedent, Consequent);
         }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Framework/Monitoring/Watchdog.cs b/OpenSim/Framework/Monitoring/Watchdog.cs
index 7964f28..a20326d 100644
--- a/OpenSim/Framework/Monitoring/Watchdog.cs
+++ b/OpenSim/Framework/Monitoring/Watchdog.cs
@@ -231,7 +231,25 @@ namespace OpenSim.Framework.Monitoring
         private static bool RemoveThread(int threadID)
         {
             lock (m_threads)
-                return m_threads.Remove(threadID);
+            {
+                ThreadWatchdogInfo twi;
+                if (m_threads.TryGetValue(threadID, out twi))
+                {
+                    m_log.DebugFormat(
+                        "[WATCHDOG]: Removing thread {0}, ID {1}", twi.Thread.Name, twi.Thread.ManagedThreadId);
+
+                    m_threads.Remove(threadID);
+
+                    return true;
+                }
+                else
+                {
+                    m_log.WarnFormat(
+                        "[WATCHDOG]: Requested to remove thread with ID {0} but this is not being monitored", threadID);
+
+                    return false;
+                }
+            }
         }
 
         public static bool AbortThread(int threadID)
diff --git a/OpenSim/Framework/Pool.cs b/OpenSim/Framework/Pool.cs
new file mode 100644
index 0000000..1ca06c3
--- /dev/null
+++ b/OpenSim/Framework/Pool.cs
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+
+namespace OpenSim.Framework
+{
+    /// <summary>
+    /// Naive pool implementation.
+    /// </summary>
+    /// <remarks>
+    /// Currently assumes that objects are in a useable state when returned.
+    /// </remarks>
+    public class Pool<T>
+    {
+        private Stack<T> m_pool;
+
+        private int m_maxPoolSize;
+
+        private Func<T> m_createFunction;
+
+        public Pool(Func<T> createFunction, int maxSize)
+        {
+            m_maxPoolSize = maxSize;
+            m_createFunction = createFunction;
+            m_pool = new Stack<T>(m_maxPoolSize);
+        }
+
+        public T GetObject()
+        {
+            lock (m_pool)
+            {
+                if (m_pool.Count > 0)
+                    return m_pool.Pop();
+                else
+                    return m_createFunction();
+            }
+        }
+
+        public void ReturnObject(T obj)
+        {
+            lock (m_pool)
+            {
+                if (m_pool.Count >= m_maxPoolSize)
+                    return;
+                else
+                    m_pool.Push(obj);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/OpenSim/Framework/Servers/BaseOpenSimServer.cs b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
index 7a5c16d..aac9c45 100644
--- a/OpenSim/Framework/Servers/BaseOpenSimServer.cs
+++ b/OpenSim/Framework/Servers/BaseOpenSimServer.cs
@@ -96,11 +96,6 @@ namespace OpenSim.Framework.Servers
             get { return m_httpServer; }
         }
 
-        /// <summary>
-        /// Holds the non-viewer statistics collection object for this service/server
-        /// </summary>
-        protected IStatsCollector m_stats;
-
         public BaseOpenSimServer()
         {
             m_startuptime = DateTime.Now;
@@ -177,10 +172,6 @@ namespace OpenSim.Framework.Servers
                         "show info",
                         "Show general information about the server", HandleShow);
 
-                m_console.Commands.AddCommand("General", false, "show stats",
-                        "show stats",
-                        "Show statistics", HandleShow);
-
                 m_console.Commands.AddCommand("General", false, "show threads",
                         "show threads",
                         "Show thread status", HandleShow);
@@ -226,12 +217,7 @@ namespace OpenSim.Framework.Servers
         {
             StringBuilder sb = new StringBuilder("DIAGNOSTICS\n\n");
             sb.Append(GetUptimeReport());
-
-            if (m_stats != null)
-            {
-                sb.Append(m_stats.Report());
-            }
-
+            sb.Append(StatsManager.SimExtraStats.Report());
             sb.Append(Environment.NewLine);
             sb.Append(GetThreadsReport());
 
@@ -382,10 +368,6 @@ namespace OpenSim.Framework.Servers
             {
                 Notice("set log level [level] - change the console logging level only.  For example, off or debug.");
                 Notice("show info - show server information (e.g. startup path).");
-
-                if (m_stats != null)
-                    Notice("show stats - show statistical information for this server");
-
                 Notice("show threads - list tracked threads");
                 Notice("show uptime - show server startup time and uptime.");
                 Notice("show version - show server version.");
@@ -409,11 +391,6 @@ namespace OpenSim.Framework.Servers
                     ShowInfo();
                     break;
 
-                case "stats":
-                    if (m_stats != null)
-                        Notice(m_stats.Report());
-                    break;
-
                 case "threads":
                     Notice(GetThreadsReport());
                     break;
@@ -604,8 +581,7 @@ namespace OpenSim.Framework.Servers
         
         public string osSecret {
             // Secret uuid for the simulator
-            get { return m_osSecret; }
-            
+            get { return m_osSecret; }            
         }
 
         public string StatReport(IOSHttpRequest httpRequest)
@@ -613,11 +589,11 @@ namespace OpenSim.Framework.Servers
             // If we catch a request for "callback", wrap the response in the value for jsonp
             if (httpRequest.Query.ContainsKey("callback"))
             {
-                return httpRequest.Query["callback"].ToString() + "(" + m_stats.XReport((DateTime.Now - m_startuptime).ToString() , m_version) + ");";
+                return httpRequest.Query["callback"].ToString() + "(" + StatsManager.SimExtraStats.XReport((DateTime.Now - m_startuptime).ToString() , m_version) + ");";
             } 
             else 
             {
-                return m_stats.XReport((DateTime.Now - m_startuptime).ToString() , m_version); 
+                return StatsManager.SimExtraStats.XReport((DateTime.Now - m_startuptime).ToString() , m_version);
             }
         }
            
diff --git a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
index d5bc3c3..b018e57 100644
--- a/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/HttpServer/BaseHttpServer.cs
@@ -648,7 +648,7 @@ namespace OpenSim.Framework.Servers.HttpServer
                 // Every month or so this will wrap and give bad numbers, not really a problem
                 // since its just for reporting
                 int tickdiff = requestEndTick - requestStartTick;
-                if (tickdiff > 3000 && requestHandler.Name != "GetTexture")
+                if (tickdiff > 3000 && requestHandler != null && requestHandler.Name != "GetTexture")
                 {
                     m_log.InfoFormat(
                         "[BASE HTTP SERVER]: Slow handling of {0} {1} {2} {3} {4} from {5} took {6}ms",
diff --git a/OpenSim/Region/Application/OpenSim.cs b/OpenSim/Region/Application/OpenSim.cs
index c3c612f..b24641a 100644
--- a/OpenSim/Region/Application/OpenSim.cs
+++ b/OpenSim/Region/Application/OpenSim.cs
@@ -254,8 +254,14 @@ namespace OpenSim
             m_console.Commands.AddCommand("Debug", false, "debug teleport", "debug teleport", "Toggle teleport route debugging", Debug);
 
             m_console.Commands.AddCommand("Debug", false, "debug scene",
-                                          "debug scene <scripting> <collisions> <physics>",
-                                          "Turn on scene debugging", Debug);
+                                          "debug scene active|collisions|physics|scripting|teleport true|false",
+                                          "Turn on scene debugging.",
+                                            "If active     is false then main scene update and maintenance loops are suspended.\n"
+                                          + "If collisions is false then collisions with other objects are turned off.\n"
+                                          + "If physics    is false then all physics objects are non-physical.\n"
+                                          + "If scripting  is false then no scripting operations happen.\n"
+                                          + "If teleport   is true  then some extra teleport debug information is logged.",
+                                          Debug);
 
             m_console.Commands.AddCommand("General", false, "change region",
                                           "change region <region name>",
@@ -930,7 +936,8 @@ namespace OpenSim
                     }
                     else
                     {
-                        MainConsole.Instance.Output("Usage: debug scene scripting|collisions|physics|teleport true|false");
+                        MainConsole.Instance.Output(
+                            "Usage: debug scene active|scripting|collisions|physics|teleport true|false");
                     }
 
                     break;
diff --git a/OpenSim/Region/Application/OpenSimBase.cs b/OpenSim/Region/Application/OpenSimBase.cs
index f784398..4f1b439 100644
--- a/OpenSim/Region/Application/OpenSimBase.cs
+++ b/OpenSim/Region/Application/OpenSimBase.cs
@@ -223,8 +223,6 @@ namespace OpenSim
 
             base.StartupSpecific();
 
-            m_stats = StatsManager.SimExtraStats;
-
             // Create a ModuleLoader instance
             m_moduleLoader = new ModuleLoader(m_config.Source);
 
@@ -234,51 +232,51 @@ namespace OpenSim
                 plugin.PostInitialise();
             }
 
-            AddPluginCommands();
+            if (m_console != null)
+            {
+                StatsManager.RegisterConsoleCommands(m_console);
+                AddPluginCommands(m_console);
+            }
         }
 
-        protected virtual void AddPluginCommands()
+        protected virtual void AddPluginCommands(CommandConsole console)
         {
-            // If console exists add plugin commands.
-            if (m_console != null)
-            {
-                List<string> topics = GetHelpTopics();
+            List<string> topics = GetHelpTopics();
 
-                foreach (string topic in topics)
-                {
-                    string capitalizedTopic = char.ToUpper(topic[0]) + topic.Substring(1);
+            foreach (string topic in topics)
+            {
+                string capitalizedTopic = char.ToUpper(topic[0]) + topic.Substring(1);
 
-                    // This is a hack to allow the user to enter the help command in upper or lowercase.  This will go
-                    // away at some point.
-                    m_console.Commands.AddCommand(capitalizedTopic, false, "help " + topic,
-                                                  "help " + capitalizedTopic,
-                                                  "Get help on plugin command '" + topic + "'",
-                                                  HandleCommanderHelp);
-                    m_console.Commands.AddCommand(capitalizedTopic, false, "help " + capitalizedTopic,
-                                                  "help " + capitalizedTopic,
-                                                  "Get help on plugin command '" + topic + "'",
-                                                  HandleCommanderHelp);
+                // This is a hack to allow the user to enter the help command in upper or lowercase.  This will go
+                // away at some point.
+                console.Commands.AddCommand(capitalizedTopic, false, "help " + topic,
+                                              "help " + capitalizedTopic,
+                                              "Get help on plugin command '" + topic + "'",
+                                              HandleCommanderHelp);
+                console.Commands.AddCommand(capitalizedTopic, false, "help " + capitalizedTopic,
+                                              "help " + capitalizedTopic,
+                                              "Get help on plugin command '" + topic + "'",
+                                              HandleCommanderHelp);
 
-                    ICommander commander = null;
+                ICommander commander = null;
 
-                    Scene s = SceneManager.CurrentOrFirstScene;
+                Scene s = SceneManager.CurrentOrFirstScene;
 
-                    if (s != null && s.GetCommanders() != null)
-                    {
-                        if (s.GetCommanders().ContainsKey(topic))
-                            commander = s.GetCommanders()[topic];
-                    }
+                if (s != null && s.GetCommanders() != null)
+                {
+                    if (s.GetCommanders().ContainsKey(topic))
+                        commander = s.GetCommanders()[topic];
+                }
 
-                    if (commander == null)
-                        continue;
+                if (commander == null)
+                    continue;
 
-                    foreach (string command in commander.Commands.Keys)
-                    {
-                        m_console.Commands.AddCommand(capitalizedTopic, false,
-                                                      topic + " " + command,
-                                                      topic + " " + commander.Commands[command].ShortHelp(),
-                                                      String.Empty, HandleCommanderCommand);
-                    }
+                foreach (string command in commander.Commands.Keys)
+                {
+                    console.Commands.AddCommand(capitalizedTopic, false,
+                                                  topic + " " + command,
+                                                  topic + " " + commander.Commands[command].ShortHelp(),
+                                                  String.Empty, HandleCommanderCommand);
                 }
             }
         }
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
index 185f9ce..cc69645 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/BunchOfCaps/BunchOfCaps.cs
@@ -163,8 +163,8 @@ namespace OpenSim.Region.ClientStack.Linden
                 m_HostCapsObj.RegisterHandler(
                     "SEED", new RestStreamHandler("POST", capsBase + m_requestPath, SeedCapRequest, "SEED", null));
 
-                m_log.DebugFormat(
-                    "[CAPS]: Registered seed capability {0} for {1}", capsBase + m_requestPath, m_HostCapsObj.AgentID);
+//                m_log.DebugFormat(
+//                    "[CAPS]: Registered seed capability {0} for {1}", capsBase + m_requestPath, m_HostCapsObj.AgentID);
 
                 //m_capsHandlers["MapLayer"] =
                 //    new LLSDStreamhandler<OSDMapRequest, OSDMapLayerResponse>("POST",
@@ -254,11 +254,12 @@ namespace OpenSim.Region.ClientStack.Linden
         public string SeedCapRequest(string request, string path, string param,
                                   IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
         {
-//            m_log.Debug("[CAPS]: Seed Caps Request in region: " + m_regionName);
+            m_log.DebugFormat(
+                "[CAPS]: Received SEED caps request in {0} for agent {1}", m_regionName, m_HostCapsObj.AgentID);
 
             if (!m_Scene.CheckClient(m_HostCapsObj.AgentID, httpRequest.RemoteIPEndPoint))
             {
-                m_log.DebugFormat(
+                m_log.WarnFormat(
                     "[CAPS]: Unauthorized CAPS client {0} from {1}",
                     m_HostCapsObj.AgentID, httpRequest.RemoteIPEndPoint);
 
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
index 594b229..47cb049 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/EventQueue/EventQueueGetModule.cs
@@ -94,7 +94,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 
                 //scene.CommsManager.HttpServer.AddLLSDHandler("/CAPS/EQG/", EventQueueFallBack);
 
-                scene.EventManager.OnNewClient += OnNewClient;
+//                scene.EventManager.OnNewClient += OnNewClient;
 
                 // TODO: Leaving these open, or closing them when we
                 // become a child is incorrect. It messes up TP in a big
@@ -102,6 +102,7 @@ namespace OpenSim.Region.ClientStack.Linden
                 // circuit is there.
 
                 scene.EventManager.OnClientClosed += ClientClosed;
+                
                 scene.EventManager.OnMakeChildAgent += MakeChildAgent;
                 scene.EventManager.OnRegisterCaps += OnRegisterCaps;
 
@@ -110,10 +111,10 @@ namespace OpenSim.Region.ClientStack.Linden
                     false,
                     "debug eq",
                     "debug eq [0|1|2]",
-                    "Turn on event queue debugging"
-                        + "<= 0 - turns off all event queue logging"
-                        + ">= 1 - turns on outgoing event logging"
-                        + ">= 2 - turns on poll notification",
+                    "Turn on event queue debugging\n"
+                        + "  <= 0 - turns off all event queue logging\n"
+                        + "  >= 1 - turns on outgoing event logging\n"
+                        + "  >= 2 - turns on poll notification",
                     HandleDebugEq);
             }
             else
@@ -226,16 +227,6 @@ namespace OpenSim.Region.ClientStack.Linden
 
         #endregion
 
-        private void OnNewClient(IClientAPI client)
-        {
-            //client.OnLogout += ClientClosed;
-        }
-
-//        private void ClientClosed(IClientAPI client)
-//        {
-//            ClientClosed(client.AgentId);
-//        }
-
         private void ClientClosed(UUID agentID, Scene scene)
         {
 //            m_log.DebugFormat("[EVENTQUEUE]: Closed client {0} in region {1}", agentID, m_scene.RegionInfo.RegionName);
diff --git a/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs b/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
index 36af55f..17c7270 100644
--- a/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
+++ b/OpenSim/Region/ClientStack/Linden/Caps/RegionConsoleModule.cs
@@ -107,7 +107,7 @@ namespace OpenSim.Region.ClientStack.Linden
 
             UUID capID = UUID.Random();
 
-            m_log.DebugFormat("[REGION CONSOLE]: /CAPS/{0} in region {1}", capID, m_scene.RegionInfo.RegionName);
+//            m_log.DebugFormat("[REGION CONSOLE]: /CAPS/{0} in region {1}", capID, m_scene.RegionInfo.RegionName);
             caps.RegisterHandler(
                     "SimConsoleAsync",
                     new ConsoleHandler("/CAPS/" + capID + "/", "SimConsoleAsync", agentID, this, m_scene));
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs b/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
index 1b8535c..e22670b 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/IncomingPacket.cs
@@ -45,7 +45,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         public Packet Packet;
 
         /// <summary>
-        /// Default constructor
+        /// No arg constructor.
+        /// </summary>
+        public IncomingPacket() {}
+
+        /// <summary>
+        /// Constructor
         /// </summary>
         /// <param name="client">Reference to the client this packet came from</param>
         /// <param name="packet">Packet data</param>
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
index 62f51d9..7427c59 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLClientView.cs
@@ -347,7 +347,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private int m_moneyBalance;
         private int m_animationSequenceNumber = 1;
         private bool m_SendLogoutPacketWhenClosing = true;
-        private AgentUpdateArgs lastarg;
+
+        /// <summary>
+        /// We retain a single AgentUpdateArgs so that we can constantly reuse it rather than construct a new one for
+        /// every single incoming AgentUpdate.  Every client sends 10 AgentUpdate UDP messages per second, even if it
+        /// is doing absolutely nothing.
+        /// </summary>
+        /// <remarks>
+        /// This does mean that agent updates must be processed synchronously, at least for each client, and called methods
+        /// cannot retain a reference to it outside of that method.
+        /// </remarks>
+        private AgentUpdateArgs m_lastAgentUpdateArgs;
 
         protected Dictionary<PacketType, PacketProcessor> m_packetHandlers = new Dictionary<PacketType, PacketProcessor>();
         protected Dictionary<string, GenericMessage> m_genericPacketHandlers = new Dictionary<string, GenericMessage>(); //PauPaw:Local Generic Message handlers
@@ -3922,7 +3932,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 {
                     List<ImprovedTerseObjectUpdatePacket.ObjectDataBlock> blocks = terseAgentUpdateBlocks.Value;
 
-                    ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                    ImprovedTerseObjectUpdatePacket packet
+                        = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(PacketType.ImprovedTerseObjectUpdate);
+
                     packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                     packet.RegionData.TimeDilation = timeDilation;
                     packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[blocks.Count];
@@ -3967,7 +3979,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 {
                     List<ImprovedTerseObjectUpdatePacket.ObjectDataBlock> blocks = terseUpdateBlocks.Value;
         
-                    ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                    ImprovedTerseObjectUpdatePacket packet
+                        = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(
+                            PacketType.ImprovedTerseObjectUpdate);
+
                     packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                     packet.RegionData.TimeDilation = timeDilation;
                     packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[blocks.Count];
@@ -4959,7 +4974,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             Utils.UInt16ToBytes(Utils.FloatToUInt16(angularVelocity.Y, -64.0f, 64.0f), data, pos); pos += 2;
             Utils.UInt16ToBytes(Utils.FloatToUInt16(angularVelocity.Z, -64.0f, 64.0f), data, pos); pos += 2;
 
-            ImprovedTerseObjectUpdatePacket.ObjectDataBlock block = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock();
+            ImprovedTerseObjectUpdatePacket.ObjectDataBlock block
+                = PacketPool.Instance.GetDataBlock<ImprovedTerseObjectUpdatePacket.ObjectDataBlock>();
+            
             block.Data = data;
 
             if (textureEntry != null && textureEntry.Length > 0)
@@ -5191,7 +5208,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         protected virtual void RegisterLocalPacketHandlers()
         {
             AddLocalPacketHandler(PacketType.LogoutRequest, HandleLogout);
+
+            // If AgentUpdate is ever handled asynchronously, then we will also need to construct a new AgentUpdateArgs
+            // for each AgentUpdate packet.
             AddLocalPacketHandler(PacketType.AgentUpdate, HandleAgentUpdate, false);
+            
             AddLocalPacketHandler(PacketType.ViewerEffect, HandleViewerEffect, false);
             AddLocalPacketHandler(PacketType.AgentCachedTexture, HandleAgentTextureCached, false);
             AddLocalPacketHandler(PacketType.MultipleObjectUpdate, HandleMultipleObjUpdate, false);
@@ -5418,80 +5439,83 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         #region Scene/Avatar
 
-        private bool HandleAgentUpdate(IClientAPI sener, Packet Pack)
+        private bool HandleAgentUpdate(IClientAPI sener, Packet packet)
         {
             if (OnAgentUpdate != null)
             {
-                bool update = false;
-                AgentUpdatePacket agenUpdate = (AgentUpdatePacket)Pack;
+                AgentUpdatePacket agentUpdate = (AgentUpdatePacket)packet;
 
                 #region Packet Session and User Check
-                if (agenUpdate.AgentData.SessionID != SessionId || agenUpdate.AgentData.AgentID != AgentId)
+                if (agentUpdate.AgentData.SessionID != SessionId || agentUpdate.AgentData.AgentID != AgentId)
+                {
+                    PacketPool.Instance.ReturnPacket(packet);
                     return false;
+                }
                 #endregion
 
-                AgentUpdatePacket.AgentDataBlock x = agenUpdate.AgentData;
-
-                // We can only check when we have something to check
-                // against.
+                bool update = false;
+                AgentUpdatePacket.AgentDataBlock x = agentUpdate.AgentData;
 
-                if (lastarg != null)
+                if (m_lastAgentUpdateArgs != null)
                 {
+                    // These should be ordered from most-likely to
+                    // least likely to change. I've made an initial
+                    // guess at that.
                     update =
                        (
-                        (x.BodyRotation != lastarg.BodyRotation) ||
-                        (x.CameraAtAxis != lastarg.CameraAtAxis) ||
-                        (x.CameraCenter != lastarg.CameraCenter) ||
-                        (x.CameraLeftAxis != lastarg.CameraLeftAxis) ||
-                        (x.CameraUpAxis != lastarg.CameraUpAxis) ||
-                        (x.ControlFlags != lastarg.ControlFlags) ||
-                        (x.Far != lastarg.Far) ||
-                        (x.Flags != lastarg.Flags) ||
-                        (x.State != lastarg.State) ||
-                        (x.HeadRotation != lastarg.HeadRotation) ||
-                        (x.SessionID != lastarg.SessionID) ||
-                        (x.AgentID != lastarg.AgentID)
+                        (x.BodyRotation != m_lastAgentUpdateArgs.BodyRotation) ||
+                        (x.CameraAtAxis != m_lastAgentUpdateArgs.CameraAtAxis) ||
+                        (x.CameraCenter != m_lastAgentUpdateArgs.CameraCenter) ||
+                        (x.CameraLeftAxis != m_lastAgentUpdateArgs.CameraLeftAxis) ||
+                        (x.CameraUpAxis != m_lastAgentUpdateArgs.CameraUpAxis) ||
+                        (x.ControlFlags != m_lastAgentUpdateArgs.ControlFlags) ||
+                        (x.Far != m_lastAgentUpdateArgs.Far) ||
+                        (x.Flags != m_lastAgentUpdateArgs.Flags) ||
+                        (x.State != m_lastAgentUpdateArgs.State) ||
+                        (x.HeadRotation != m_lastAgentUpdateArgs.HeadRotation) ||
+                        (x.SessionID != m_lastAgentUpdateArgs.SessionID) ||
+                        (x.AgentID != m_lastAgentUpdateArgs.AgentID)
                        );
                 }
                 else
                 {
+                    m_lastAgentUpdateArgs = new AgentUpdateArgs();
                     update = true;
                 }
 
-                // These should be ordered from most-likely to
-                // least likely to change. I've made an initial
-                // guess at that.
-
                 if (update)
                 {
 //                    m_log.DebugFormat("[LLCLIENTVIEW]: Triggered AgentUpdate for {0}", sener.Name);
 
-                    AgentUpdateArgs arg = new AgentUpdateArgs();
-                    arg.AgentID = x.AgentID;
-                    arg.BodyRotation = x.BodyRotation;
-                    arg.CameraAtAxis = x.CameraAtAxis;
-                    arg.CameraCenter = x.CameraCenter;
-                    arg.CameraLeftAxis = x.CameraLeftAxis;
-                    arg.CameraUpAxis = x.CameraUpAxis;
-                    arg.ControlFlags = x.ControlFlags;
-                    arg.Far = x.Far;
-                    arg.Flags = x.Flags;
-                    arg.HeadRotation = x.HeadRotation;
-                    arg.SessionID = x.SessionID;
-                    arg.State = x.State;
+                    m_lastAgentUpdateArgs.AgentID = x.AgentID;
+                    m_lastAgentUpdateArgs.BodyRotation = x.BodyRotation;
+                    m_lastAgentUpdateArgs.CameraAtAxis = x.CameraAtAxis;
+                    m_lastAgentUpdateArgs.CameraCenter = x.CameraCenter;
+                    m_lastAgentUpdateArgs.CameraLeftAxis = x.CameraLeftAxis;
+                    m_lastAgentUpdateArgs.CameraUpAxis = x.CameraUpAxis;
+                    m_lastAgentUpdateArgs.ControlFlags = x.ControlFlags;
+                    m_lastAgentUpdateArgs.Far = x.Far;
+                    m_lastAgentUpdateArgs.Flags = x.Flags;
+                    m_lastAgentUpdateArgs.HeadRotation = x.HeadRotation;
+                    m_lastAgentUpdateArgs.SessionID = x.SessionID;
+                    m_lastAgentUpdateArgs.State = x.State;
+
                     UpdateAgent handlerAgentUpdate = OnAgentUpdate;
                     UpdateAgent handlerPreAgentUpdate = OnPreAgentUpdate;
-                    lastarg = arg; // save this set of arguments for nexttime
+
                     if (handlerPreAgentUpdate != null)
-                        OnPreAgentUpdate(this, arg);
+                        OnPreAgentUpdate(this, m_lastAgentUpdateArgs);
+
                     if (handlerAgentUpdate != null)
-                        OnAgentUpdate(this, arg);
+                        OnAgentUpdate(this, m_lastAgentUpdateArgs);
 
                     handlerAgentUpdate = null;
                     handlerPreAgentUpdate = null;
                 }
             }
 
+            PacketPool.Instance.ReturnPacket(packet);
+
             return true;
         }
 
@@ -9056,7 +9080,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
             #endregion
 
-            switch (Utils.BytesToString(messagePacket.MethodData.Method))
+            string method = Utils.BytesToString(messagePacket.MethodData.Method);
+
+            switch (method)
             {
                 case "getinfo":
                     if (((Scene)m_scene).Permissions.CanIssueEstateCommand(AgentId, false))
@@ -9372,7 +9398,17 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     return true;
 
                 default:
-                    m_log.Error("EstateOwnerMessage: Unknown method requested\n" + messagePacket);
+                    m_log.WarnFormat(
+                        "[LLCLIENTVIEW]: EstateOwnerMessage: Unknown method {0} requested for {1} in {2}",
+                        method, Name, Scene.Name);
+
+                    for (int i = 0; i < messagePacket.ParamList.Length; i++)
+                    {
+                        EstateOwnerMessagePacket.ParamListBlock block = messagePacket.ParamList[i];
+                        string data = (string)Utils.BytesToString(block.Parameter);
+                        m_log.DebugFormat("[LLCLIENTVIEW]: Param {0}={1}", i, data);
+                    }
+
                     return true;
             }
 
@@ -11758,7 +11794,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     logPacket = false;
                 
                 if (DebugPacketLevel <= 50
-                    & (packet.Type == PacketType.ImprovedTerseObjectUpdate || packet.Type == PacketType.ObjectUpdate))
+                    && (packet.Type == PacketType.ImprovedTerseObjectUpdate || packet.Type == PacketType.ObjectUpdate))
                     logPacket = false;
 
                 if (DebugPacketLevel <= 25 && packet.Type == PacketType.ObjectPropertiesFamily)
@@ -11832,8 +11868,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (!ProcessPacketMethod(packet))
                 m_log.Warn("[CLIENT]: unhandled packet " + packet.Type);
-
-            PacketPool.Instance.ReturnPacket(packet);
         }
 
         private static PrimitiveBaseShape GetShapeFromAddPacket(ObjectAddPacket addPacket)
@@ -12286,7 +12320,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 ushort timeDilation = Utils.FloatToUInt16(TIME_DILATION, 0.0f, 1.0f);
 
 
-                ImprovedTerseObjectUpdatePacket packet = new ImprovedTerseObjectUpdatePacket();
+                ImprovedTerseObjectUpdatePacket packet
+                    = (ImprovedTerseObjectUpdatePacket)PacketPool.Instance.GetPacket(
+                        PacketType.ImprovedTerseObjectUpdate);
+
                 packet.RegionData.RegionHandle = m_scene.RegionInfo.RegionHandle;
                 packet.RegionData.TimeDilation = timeDilation;
                 packet.ObjectData = new ImprovedTerseObjectUpdatePacket.ObjectDataBlock[1];
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index d11fcbf..419de66 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -37,6 +37,7 @@ using log4net;
 using Nini.Config;
 using OpenMetaverse.Packets;
 using OpenSim.Framework;
+using OpenSim.Framework.Console;
 using OpenSim.Framework.Monitoring;
 using OpenSim.Region.Framework.Scenes;
 using OpenMetaverse;
@@ -100,9 +101,11 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         /// <summary>The measured resolution of Environment.TickCount</summary>
         public readonly float TickCountResolution;
+
         /// <summary>Number of prim updates to put on the queue each time the 
         /// OnQueueEmpty event is triggered for updates</summary>
         public readonly int PrimUpdatesPerCallback;
+
         /// <summary>Number of texture packets to put on the queue each time the
         /// OnQueueEmpty event is triggered for textures</summary>
         public readonly int TextureSendLimit;
@@ -111,6 +114,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         //PacketEventDictionary packetEvents = new PacketEventDictionary();
         /// <summary>Incoming packets that are awaiting handling</summary>
         private OpenMetaverse.BlockingQueue<IncomingPacket> packetInbox = new OpenMetaverse.BlockingQueue<IncomingPacket>();
+
         /// <summary></summary>
         //private UDPClientCollection m_clients = new UDPClientCollection();
         /// <summary>Bandwidth throttle for this UDP server</summary>
@@ -121,28 +125,37 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         
         /// <summary>Manages authentication for agent circuits</summary>
         private AgentCircuitManager m_circuitManager;
+
         /// <summary>Reference to the scene this UDP server is attached to</summary>
         protected Scene m_scene;
+
         /// <summary>The X/Y coordinates of the scene this UDP server is attached to</summary>
         private Location m_location;
+
         /// <summary>The size of the receive buffer for the UDP socket. This value
         /// is passed up to the operating system and used in the system networking
         /// stack. Use zero to leave this value as the default</summary>
         private int m_recvBufferSize;
+
         /// <summary>Flag to process packets asynchronously or synchronously</summary>
         private bool m_asyncPacketHandling;
+
         /// <summary>Tracks whether or not a packet was sent each round so we know
         /// whether or not to sleep</summary>
         private bool m_packetSent;
 
         /// <summary>Environment.TickCount of the last time that packet stats were reported to the scene</summary>
         private int m_elapsedMSSinceLastStatReport = 0;
+
         /// <summary>Environment.TickCount of the last time the outgoing packet handler executed</summary>
         private int m_tickLastOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of elapsed milliseconds since the last time the outgoing packet handler looped</summary>
         private int m_elapsedMSOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of 100 millisecond periods elapsed in the outgoing packet handler executed</summary>
         private int m_elapsed100MSOutgoingPacketHandler;
+
         /// <summary>Keeps track of the number of 500 millisecond periods elapsed in the outgoing packet handler executed</summary>
         private int m_elapsed500MSOutgoingPacketHandler;
 
@@ -155,6 +168,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// <summary>Flag to signal when clients should send pings</summary>
         protected bool m_sendPing;
 
+        private Pool<IncomingPacket> m_incomingPacketPool;
+
         private int m_defaultRTO = 0;
         private int m_maxRTO = 0;
         private int m_ackTimeout = 0;
@@ -175,7 +190,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         /// </summary>
         private IClientAPI m_currentIncomingClient;
 
-        public LLUDPServer(IPAddress listenIP, ref uint port, int proxyPortOffsetParm, bool allow_alternate_port, IConfigSource configSource, AgentCircuitManager circuitManager)
+        public LLUDPServer(
+            IPAddress listenIP, ref uint port, int proxyPortOffsetParm, bool allow_alternate_port,
+            IConfigSource configSource, AgentCircuitManager circuitManager)
             : base(listenIP, (int)port)
         {
             #region Environment.TickCount Measurement
@@ -229,6 +246,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 PacketPool.Instance.RecyclePackets = packetConfig.GetBoolean("RecyclePackets", true);
                 PacketPool.Instance.RecycleDataBlocks = packetConfig.GetBoolean("RecycleDataBlocks", true);
+                UsePools = packetConfig.GetBoolean("RecycleBaseUDPPackets", false);
             }
 
             #region BinaryStats
@@ -258,20 +276,28 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_throttle = new TokenBucket(null, sceneThrottleBps);
             ThrottleRates = new ThrottleRates(configSource);
+
+            if (UsePools)
+                m_incomingPacketPool = new Pool<IncomingPacket>(() => new IncomingPacket(), 500);
         }
 
         public void Start()
         {
-            if (m_scene == null)
-                throw new InvalidOperationException("[LLUDPSERVER]: Cannot LLUDPServer.Start() without an IScene reference");
+            StartInbound();
+            StartOutbound();
+
+            m_elapsedMSSinceLastStatReport = Environment.TickCount;
+        }
 
+        private void StartInbound()
+        {
             m_log.InfoFormat(
-                "[LLUDPSERVER]: Starting the LLUDP server in {0} mode",
-                m_asyncPacketHandling ? "asynchronous" : "synchronous");
+                "[LLUDPSERVER]: Starting inbound packet processing for the LLUDP server in {0} mode with UsePools = {1}",
+                m_asyncPacketHandling ? "asynchronous" : "synchronous", UsePools);
 
-            base.Start(m_recvBufferSize, m_asyncPacketHandling);
+            base.StartInbound(m_recvBufferSize, m_asyncPacketHandling);
 
-            // Start the packet processing threads
+            // This thread will process the packets received that are placed on the packetInbox
             Watchdog.StartThread(
                 IncomingPacketHandler,
                 string.Format("Incoming Packets ({0})", m_scene.RegionInfo.RegionName),
@@ -280,6 +306,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 true,
                 GetWatchdogIncomingAlarmData,
                 Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS);
+        }
+
+        private new void StartOutbound()
+        {
+            m_log.Info("[LLUDPSERVER]: Starting outbound packet processing for the LLUDP server");
+
+            base.StartOutbound();
 
             Watchdog.StartThread(
                 OutgoingPacketHandler,
@@ -289,8 +322,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 true,
                 GetWatchdogOutgoingAlarmData,
                 Watchdog.DEFAULT_WATCHDOG_TIMEOUT_MS);
+        }
 
-            m_elapsedMSSinceLastStatReport = Environment.TickCount;
+        public void Stop()
+        {
+            m_log.Info("[LLUDPSERVER]: Shutting down the LLUDP server for " + m_scene.RegionInfo.RegionName);
+            base.StopOutbound();
+            base.StopInbound();
         }
 
         /// <summary>
@@ -315,12 +353,6 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 m_currentOutgoingClient != null ? m_currentOutgoingClient.Name : "none");
         }
 
-        public new void Stop()
-        {
-            m_log.Info("[LLUDPSERVER]: Shutting down the LLUDP server for " + m_scene.RegionInfo.RegionName);
-            base.Stop();
-        }
-
         public void AddScene(IScene scene)
         {
             if (m_scene != null)
@@ -337,6 +369,81 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             m_scene = (Scene)scene;
             m_location = new Location(m_scene.RegionInfo.RegionHandle);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp start",
+                "debug lludp start <in|out|all>",
+                "Control LLUDP packet processing.",
+                "No effect if packet processing has already started.\n"
+                    + "in  - start inbound processing.\n"
+                    + "out - start outbound processing.\n"
+                    + "all - start in and outbound processing.\n",
+                HandleStartCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp stop",
+                "debug lludp stop <in|out|all>",
+                "Stop LLUDP packet processing.",
+                "No effect if packet processing has already stopped.\n"
+                    + "in  - stop inbound processing.\n"
+                    + "out - stop outbound processing.\n"
+                    + "all - stop in and outbound processing.\n",
+                HandleStopCommand);
+
+            MainConsole.Instance.Commands.AddCommand(
+                "Debug",
+                false,
+                "debug lludp status",
+                "debug lludp status",
+                "Return status of LLUDP packet processing.",
+                HandleStatusCommand);
+        }
+
+        private void HandleStartCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp start <in|out|all>");
+                return;
+            }
+
+            string subCommand = args[3];
+
+            if (subCommand == "in" || subCommand == "all")
+                StartInbound();
+
+            if (subCommand == "out" || subCommand == "all")
+                StartOutbound();
+        }
+
+        private void HandleStopCommand(string module, string[] args)
+        {
+            if (args.Length != 4)
+            {
+                MainConsole.Instance.Output("Usage: debug lludp stop <in|out|all>");
+                return;
+            }
+
+            string subCommand = args[3];
+
+            if (subCommand == "in" || subCommand == "all")
+                StopInbound();
+
+            if (subCommand == "out" || subCommand == "all")
+                StopOutbound();
+        }
+
+        private void HandleStatusCommand(string module, string[] args)
+        {
+            MainConsole.Instance.OutputFormat(
+                "IN  LLUDP packet processing for {0} is {1}", m_scene.Name, IsRunningInbound ? "enabled" : "disabled");
+
+            MainConsole.Instance.OutputFormat(
+                "OUT LLUDP packet processing for {0} is {1}", m_scene.Name, IsRunningOutbound ? "enabled" : "disabled");
         }
 
         public bool HandlesRegion(Location x)
@@ -420,6 +527,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 byte[] data = packet.ToBytes();
                 SendPacketData(udpClient, data, packet.Type, category, method);
             }
+
+            PacketPool.Instance.ReturnPacket(packet);
         }
 
         /// <summary>
@@ -704,7 +813,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             LLUDPClient udpClient = null;
             Packet packet = null;
             int packetEnd = buffer.DataLength - 1;
-            IPEndPoint address = (IPEndPoint)buffer.RemoteEndPoint;
+            IPEndPoint endPoint = (IPEndPoint)buffer.RemoteEndPoint;
 
             #region Decoding
 
@@ -714,7 +823,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 //                    "[LLUDPSERVER]: Dropping undersized packet with {0} bytes received from {1} in {2}",
 //                    buffer.DataLength, buffer.RemoteEndPoint, m_scene.RegionInfo.RegionName);
 
-                return; // Drop undersizd packet
+                return; // Drop undersized packet
             }
 
             int headerLen = 7;
@@ -737,7 +846,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             try
             {
-                packet = Packet.BuildPacket(buffer.Data, ref packetEnd,
+//                packet = Packet.BuildPacket(buffer.Data, ref packetEnd,
+//                    // Only allocate a buffer for zerodecoding if the packet is zerocoded
+//                    ((buffer.Data[0] & Helpers.MSG_ZEROCODED) != 0) ? new byte[4096] : null);
+                // If OpenSimUDPBase.UsePool == true (which is currently separate from the PacketPool) then we
+                // assume that packet construction does not retain a reference to byte[] buffer.Data (instead, all
+                // bytes are copied out).
+                packet = PacketPool.Instance.GetPacket(buffer.Data, ref packetEnd,
                     // Only allocate a buffer for zerodecoding if the packet is zerocoded
                     ((buffer.Data[0] & Helpers.MSG_ZEROCODED) != 0) ? new byte[4096] : null);
             }
@@ -752,11 +867,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                 return; // Drop short packet
             }
-            catch(Exception e)
+            catch (Exception e)
             {
                 if (m_malformedCount < 100)
                     m_log.DebugFormat("[LLUDPSERVER]: Dropped malformed packet: " + e.ToString());
+
                 m_malformedCount++;
+
                 if ((m_malformedCount % 100000) == 0)
                     m_log.DebugFormat("[LLUDPSERVER]: Received {0} malformed packets so far, probable network attack.", m_malformedCount);
             }
@@ -777,7 +894,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // UseCircuitCode handling
             if (packet.Type == PacketType.UseCircuitCode)
             {
-                object[] array = new object[] { buffer, packet };
+                // We need to copy the endpoint so that it doesn't get changed when another thread reuses the
+                // buffer.
+                object[] array = new object[] { new IPEndPoint(endPoint.Address, endPoint.Port), packet };
 
                 Util.FireAndForget(HandleUseCircuitCode, array);
 
@@ -786,7 +905,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             // Determine which agent this packet came from
             IClientAPI client;
-            if (!m_scene.TryGetClient(address, out client) || !(client is LLClientView))
+            if (!m_scene.TryGetClient(endPoint, out client) || !(client is LLClientView))
             {
                 //m_log.Debug("[LLUDPSERVER]: Received a " + packet.Type + " packet from an unrecognized source: " + address + " in " + m_scene.RegionInfo.RegionName);
                 return;
@@ -810,6 +929,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // Handle appended ACKs
             if (packet.Header.AppendedAcks && packet.Header.AckList != null)
             {
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Handling {0} appended acks from {1} in {2}",
+//                    packet.Header.AckList.Length, client.Name, m_scene.Name);
+
                 for (int i = 0; i < packet.Header.AckList.Length; i++)
                     udpClient.NeedAcks.Acknowledge(packet.Header.AckList[i], now, packet.Header.Resent);
             }
@@ -819,6 +942,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 PacketAckPacket ackPacket = (PacketAckPacket)packet;
 
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Handling {0} packet acks for {1} in {2}",
+//                    ackPacket.Packets.Length, client.Name, m_scene.Name);
+
                 for (int i = 0; i < ackPacket.Packets.Length; i++)
                     udpClient.NeedAcks.Acknowledge(ackPacket.Packets[i].ID, now, packet.Header.Resent);
 
@@ -832,6 +959,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (packet.Header.Reliable)
             {
+//                m_log.DebugFormat(
+//                    "[LLUDPSERVER]: Adding ack request for {0} {1} from {2} in {3}",
+//                    packet.Type, packet.Header.Sequence, client.Name, m_scene.Name);
+
                 udpClient.PendingAcks.Enqueue(packet.Header.Sequence);
 
                 // This is a somewhat odd sequence of steps to pull the client.BytesSinceLastACK value out,
@@ -878,6 +1009,8 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             if (packet.Type == PacketType.StartPingCheck)
             {
+//                m_log.DebugFormat("[LLUDPSERVER]: Handling ping from {0} in {1}", client.Name, m_scene.Name);
+
                 // We don't need to do anything else with ping checks
                 StartPingCheckPacket startPing = (StartPingCheckPacket)packet;
                 CompletePing(udpClient, startPing.PingID.PingID);
@@ -897,8 +1030,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
             #endregion Ping Check Handling
 
+            IncomingPacket incomingPacket;
+
             // Inbox insertion
-            packetInbox.Enqueue(new IncomingPacket((LLClientView)client, packet));
+            if (UsePools)
+            {
+                incomingPacket = m_incomingPacketPool.GetObject();
+                incomingPacket.Client = (LLClientView)client;
+                incomingPacket.Packet = packet;
+            }
+            else
+            {
+                incomingPacket = new IncomingPacket((LLClientView)client, packet);
+            }
+
+            packetInbox.Enqueue(incomingPacket);
         }
 
         #region BinaryStats
@@ -984,21 +1130,19 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         private void HandleUseCircuitCode(object o)
         {
-            IPEndPoint remoteEndPoint = null;
+            IPEndPoint endPoint = null;
             IClientAPI client = null;
 
             try
             {
     //            DateTime startTime = DateTime.Now;
                 object[] array = (object[])o;
-                UDPPacketBuffer buffer = (UDPPacketBuffer)array[0];
+                endPoint = (IPEndPoint)array[0];
                 UseCircuitCodePacket uccp = (UseCircuitCodePacket)array[1];
 
                 m_log.DebugFormat(
                     "[LLUDPSERVER]: Handling UseCircuitCode request for circuit {0} to {1} from IP {2}",
-                    uccp.CircuitCode.Code, m_scene.RegionInfo.RegionName, buffer.RemoteEndPoint);
-    
-                remoteEndPoint = (IPEndPoint)buffer.RemoteEndPoint;
+                    uccp.CircuitCode.Code, m_scene.RegionInfo.RegionName, endPoint);
     
                 AuthenticateResponse sessionInfo;
                 if (IsClientAuthorized(uccp, out sessionInfo))
@@ -1009,13 +1153,13 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                             uccp.CircuitCode.Code,
                             uccp.CircuitCode.ID,
                             uccp.CircuitCode.SessionID,
-                            remoteEndPoint,
+                            endPoint,
                             sessionInfo);
             
                     // Send ack straight away to let the viewer know that the connection is active.
                     // The client will be null if it already exists (e.g. if on a region crossing the client sends a use
                     // circuit code to the existing child agent.  This is not particularly obvious.
-                    SendAckImmediate(remoteEndPoint, uccp.Header.Sequence);
+                    SendAckImmediate(endPoint, uccp.Header.Sequence);
             
                     // We only want to send initial data to new clients, not ones which are being converted from child to root.
                     if (client != null)
@@ -1026,7 +1170,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     // Don't create clients for unauthorized requesters.
                     m_log.WarnFormat(
                         "[LLUDPSERVER]: Ignoring connection request for {0} to {1} with unknown circuit code {2} from IP {3}",
-                        uccp.CircuitCode.ID, m_scene.RegionInfo.RegionName, uccp.CircuitCode.Code, remoteEndPoint);
+                        uccp.CircuitCode.ID, m_scene.RegionInfo.RegionName, uccp.CircuitCode.Code, endPoint);
                 }
     
                 //            m_log.DebugFormat(
@@ -1038,7 +1182,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 m_log.ErrorFormat(
                     "[LLUDPSERVER]: UseCircuitCode handling from endpoint {0}, client {1} {2} failed.  Exception {3}{4}",
-                    remoteEndPoint != null ? remoteEndPoint.ToString() : "n/a",
+                    endPoint != null ? endPoint.ToString() : "n/a",
                     client != null ? client.Name : "unknown",
                     client != null ? client.AgentId.ToString() : "unknown",
                     e.Message,
@@ -1103,20 +1247,20 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             IClientAPI client = null;
 
-            // In priciple there shouldn't be more than one thread here, ever.
-            // But in case that happens, we need to synchronize this piece of code
-            // because it's too important
-            lock (this) 
+            // We currently synchronize this code across the whole scene to avoid issues such as
+            // http://opensimulator.org/mantis/view.php?id=5365  However, once locking per agent circuit can be done
+            // consistently, this lock could probably be removed.
+            lock (this)
             {
                 if (!m_scene.TryGetClient(agentID, out client))
                 {
                     LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO);
-
+    
                     client = new LLClientView(m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode);
                     client.OnLogout += LogoutHandler;
-
+    
                     ((LLClientView)client).DisableFacelights = m_disableFacelights;
-
+    
                     client.Start();
                 }
             }
@@ -1155,7 +1299,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // on to en-US to avoid number parsing issues
             Culture.SetCurrentCulture();
 
-            while (base.IsRunning)
+            while (IsRunningInbound)
             {
                 try
                 {
@@ -1170,7 +1314,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                     }
 
                     if (packetInbox.Dequeue(100, ref incomingPacket))
+                    {
                         ProcessInPacket(incomingPacket);//, incomingPacket); Util.FireAndForget(ProcessInPacket, incomingPacket);
+
+                        if (UsePools)
+                            m_incomingPacketPool.ReturnObject(incomingPacket);
+                    }
                 }
                 catch (Exception ex)
                 {
@@ -1197,7 +1346,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // Action generic every round
             Action<IClientAPI> clientPacketHandler = ClientOutgoingPacketHandler;
 
-            while (base.IsRunning)
+            while (base.IsRunningOutbound)
             {
                 try
                 {
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
index 039379d..6e6b3ef 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/OpenSimUDPBase.cs
@@ -30,6 +30,7 @@ using System.Net;
 using System.Net.Sockets;
 using System.Threading;
 using log4net;
+using OpenSim.Framework;
 
 namespace OpenMetaverse
 {
@@ -58,17 +59,29 @@ namespace OpenMetaverse
         /// <summary>Flag to process packets asynchronously or synchronously</summary>
         private bool m_asyncPacketHandling;
 
-        /// <summary>The all important shutdown flag</summary>
-        private volatile bool m_shutdownFlag = true;
+        /// <summary>
+        /// Pool to use for handling data.  May be null if UsePools = false;
+        /// </summary>
+        protected OpenSim.Framework.Pool<UDPPacketBuffer> m_pool;
 
-        /// <summary>Returns true if the server is currently listening, otherwise false</summary>
-        public bool IsRunning { get { return !m_shutdownFlag; } }
+        /// <summary>
+        /// Are we to use object pool(s) to reduce memory churn when receiving data?
+        /// </summary>
+        public bool UsePools { get; protected set; }
+
+        /// <summary>Returns true if the server is currently listening for inbound packets, otherwise false</summary>
+        public bool IsRunningInbound { get; private set; }
+
+        /// <summary>Returns true if the server is currently sending outbound packets, otherwise false</summary>
+        /// <remarks>If IsRunningOut = false, then any request to send a packet is simply dropped.</remarks>
+        public bool IsRunningOutbound { get; private set; }
 
         /// <summary>
         /// Default constructor
         /// </summary>
         /// <param name="bindAddress">Local IP address to bind the server to</param>
         /// <param name="port">Port to listening for incoming UDP packets on</param>
+        /// /// <param name="usePool">Are we to use an object pool to get objects for handing inbound data?</param>
         public OpenSimUDPBase(IPAddress bindAddress, int port)
         {
             m_localBindAddress = bindAddress;
@@ -76,7 +89,7 @@ namespace OpenMetaverse
         }
 
         /// <summary>
-        /// Start the UDP server
+        /// Start inbound UDP packet handling.
         /// </summary>
         /// <param name="recvBufferSize">The size of the receive buffer for 
         /// the UDP socket. This value is passed up to the operating system 
@@ -91,11 +104,16 @@ namespace OpenMetaverse
         /// manner (not throwing an exception when the remote side resets the
         /// connection). This call is ignored on Mono where the flag is not
         /// necessary</remarks>
-        public void Start(int recvBufferSize, bool asyncPacketHandling)
+        public void StartInbound(int recvBufferSize, bool asyncPacketHandling)
         {
+            if (UsePools)
+                m_pool = new Pool<UDPPacketBuffer>(() => new UDPPacketBuffer(), 500);
+            else
+                m_pool = null;
+
             m_asyncPacketHandling = asyncPacketHandling;
 
-            if (m_shutdownFlag)
+            if (!IsRunningInbound)
             {
                 const int SIO_UDP_CONNRESET = -1744830452;
 
@@ -127,8 +145,7 @@ namespace OpenMetaverse
 
                 m_udpSocket.Bind(ipep);
 
-                // we're not shutting down, we're starting up
-                m_shutdownFlag = false;
+                IsRunningInbound = true;
 
                 // kick off an async receive.  The Start() method will return, the
                 // actual receives will occur asynchronously and will be caught in
@@ -138,28 +155,41 @@ namespace OpenMetaverse
         }
 
         /// <summary>
-        /// Stops the UDP server
+        /// Start outbound UDP packet handling.
         /// </summary>
-        public void Stop()
+        public void StartOutbound()
         {
-            if (!m_shutdownFlag)
+            IsRunningOutbound = true;
+        }
+
+        public void StopInbound()
+        {
+            if (IsRunningInbound)
             {
                 // wait indefinitely for a writer lock.  Once this is called, the .NET runtime
                 // will deny any more reader locks, in effect blocking all other send/receive
-                // threads.  Once we have the lock, we set shutdownFlag to inform the other
+                // threads.  Once we have the lock, we set IsRunningInbound = false to inform the other
                 // threads that the socket is closed.
-                m_shutdownFlag = true;
+                IsRunningInbound = false;
                 m_udpSocket.Close();
             }
         }
 
+        public void StopOutbound()
+        {
+            IsRunningOutbound = false;
+        }
+
         private void AsyncBeginReceive()
         {
-            // allocate a packet buffer
-            //WrappedObject<UDPPacketBuffer> wrappedBuffer = Pool.CheckOut();
-            UDPPacketBuffer buf = new UDPPacketBuffer();
+            UDPPacketBuffer buf;
+
+            if (UsePools)
+                buf = m_pool.GetObject();
+            else
+                buf = new UDPPacketBuffer();
 
-            if (!m_shutdownFlag)
+            if (IsRunningInbound)
             {
                 try
                 {
@@ -212,7 +242,7 @@ namespace OpenMetaverse
         {
             // Asynchronous receive operations will complete here through the call
             // to AsyncBeginReceive
-            if (!m_shutdownFlag)
+            if (IsRunningInbound)
             {
                 // Asynchronous mode will start another receive before the
                 // callback for this packet is even fired. Very parallel :-)
@@ -221,8 +251,6 @@ namespace OpenMetaverse
 
                 // get the buffer that was created in AsyncBeginReceive
                 // this is the received data
-                //WrappedObject<UDPPacketBuffer> wrappedBuffer = (WrappedObject<UDPPacketBuffer>)iar.AsyncState;
-                //UDPPacketBuffer buffer = wrappedBuffer.Instance;
                 UDPPacketBuffer buffer = (UDPPacketBuffer)iar.AsyncState;
 
                 try
@@ -239,7 +267,8 @@ namespace OpenMetaverse
                 catch (ObjectDisposedException) { }
                 finally
                 {
-                    //wrappedBuffer.Dispose();
+                    if (UsePools)
+                        m_pool.ReturnObject(buffer);
 
                     // Synchronous mode waits until the packet callback completes
                     // before starting the receive to fetch another packet
@@ -252,7 +281,7 @@ namespace OpenMetaverse
 
         public void AsyncBeginSend(UDPPacketBuffer buf)
         {
-            if (!m_shutdownFlag)
+            if (IsRunningOutbound)
             {
                 try
                 {
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
index fc9406b..2a3d14f 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/PacketPool.cs
@@ -31,6 +31,7 @@ using System.Reflection;
 using OpenMetaverse;
 using OpenMetaverse.Packets;
 using log4net;
+using OpenSim.Framework.Monitoring;
 
 namespace OpenSim.Region.ClientStack.LindenUDP
 {
@@ -43,17 +44,28 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private bool packetPoolEnabled = true;
         private bool dataBlockPoolEnabled = true;
 
+        private PercentageStat m_packetsReusedStat = new PercentageStat(
+            "PacketsReused",
+            "Packets reused",
+            "clientstack",
+            "packetpool",
+            StatVerbosity.Debug,
+            "Number of packets reused out of all requests to the packet pool");
+
+        private PercentageStat m_blocksReusedStat = new PercentageStat(
+            "BlocksReused",
+            "Blocks reused",
+            "clientstack",
+            "packetpool",
+            StatVerbosity.Debug,
+            "Number of data blocks reused out of all requests to the packet pool");
+
         /// <summary>
         /// Pool of packets available for reuse.
         /// </summary>
         private readonly Dictionary<PacketType, Stack<Packet>> pool = new Dictionary<PacketType, Stack<Packet>>();
 
-        private static Dictionary<Type, Stack<Object>> DataBlocks =
-                new Dictionary<Type, Stack<Object>>();
-
-        static PacketPool()
-        {
-        }
+        private static Dictionary<Type, Stack<Object>> DataBlocks = new Dictionary<Type, Stack<Object>>();
 
         public static PacketPool Instance
         {
@@ -72,8 +84,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             get { return dataBlockPoolEnabled; }
         }
 
+        private PacketPool()
+        {
+            StatsManager.RegisterStat(m_packetsReusedStat);
+            StatsManager.RegisterStat(m_blocksReusedStat);
+        }
+
+        /// <summary>
+        /// Gets a packet of the given type.
+        /// </summary>
+        /// <param name='type'></param>
+        /// <returns>Guaranteed to always return a packet, whether from the pool or newly constructed.</returns>
         public Packet GetPacket(PacketType type)
         {
+            m_packetsReusedStat.Consequent++;
+
             Packet packet;
 
             if (!packetPoolEnabled)
@@ -83,13 +108,19 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 if (!pool.ContainsKey(type) || pool[type] == null || (pool[type]).Count == 0)
                 {
+//                    m_log.DebugFormat("[PACKETPOOL]: Building {0} packet", type);
+
                     // Creating a new packet if we cannot reuse an old package
                     packet = Packet.BuildPacket(type);
                 }
                 else
                 {
+//                    m_log.DebugFormat("[PACKETPOOL]: Pulling {0} packet", type);
+
                     // Recycle old packages
-                    packet = (pool[type]).Pop();
+                    m_packetsReusedStat.Antecedent++;
+
+                    packet = pool[type].Pop();
                 }
             }
 
@@ -138,7 +169,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         {
             PacketType type = GetType(bytes);
 
-            Array.Clear(zeroBuffer, 0, zeroBuffer.Length);
+//            Array.Clear(zeroBuffer, 0, zeroBuffer.Length);
 
             int i = 0;
             Packet packet = GetPacket(type);
@@ -185,6 +216,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 switch (packet.Type)
                 {
                     // List pooling packets here
+                    case PacketType.AgentUpdate:
                     case PacketType.PacketAck:
                     case PacketType.ObjectUpdate:
                     case PacketType.ImprovedTerseObjectUpdate:
@@ -199,7 +231,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                             if ((pool[type]).Count < 50)
                             {
-                                (pool[type]).Push(packet);
+//                                m_log.DebugFormat("[PACKETPOOL]: Pushing {0} packet", type);
+
+                                pool[type].Push(packet);
                             }
                         }
                         break;
@@ -211,16 +245,21 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
         }
 
-        public static T GetDataBlock<T>() where T: new()
+        public T GetDataBlock<T>() where T: new()
         {
             lock (DataBlocks)
             {
+                m_blocksReusedStat.Consequent++;
+
                 Stack<Object> s;
 
                 if (DataBlocks.TryGetValue(typeof(T), out s))
                 {
                     if (s.Count > 0)
+                    {
+                        m_blocksReusedStat.Antecedent++;
                         return (T)s.Pop();
+                    }
                 }
                 else
                 {
@@ -231,7 +270,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
         }
 
-        public static void ReturnDataBlock<T>(T block) where T: new()
+        public void ReturnDataBlock<T>(T block) where T: new()
         {
             if (block == null)
                 return;
diff --git a/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs b/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
index 109a8e1..556df30 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/Tests/BasicCircuitTests.cs
@@ -43,7 +43,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
     /// This will contain basic tests for the LindenUDP client stack
     /// </summary>
     [TestFixture]
-    public class BasicCircuitTests
+    public class BasicCircuitTests : OpenSimTestCase
     {
         private Scene m_scene;
         private TestLLUDPServer m_udpServer;
@@ -65,8 +65,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         }
 
         [SetUp]
-        public void SetUp()
+        public override void SetUp()
         {
+            base.SetUp();
             m_scene = new SceneHelpers().SetupScene();
         }
         
@@ -143,7 +144,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP.Tests
         public void TestAddClient()
         {
             TestHelpers.InMethod();
-//            XmlConfigurator.Configure();
+//            TestHelpers.EnableLogging();
 
             AddUdpServer();
 
diff --git a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
index 11db18a..f1903c3 100644
--- a/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Friends/FriendsModule.cs
@@ -28,6 +28,7 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using System.Threading;
 using log4net;
@@ -495,42 +496,36 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
 
         protected virtual void StatusNotify(List<FriendInfo> friendList, UUID userID, bool online)
         {
-            foreach (FriendInfo friend in friendList)
+            List<string> friendStringIds = friendList.ConvertAll<string>(friend => friend.Friend);
+            List<string> remoteFriendStringIds = new List<string>();
+            foreach (string friendStringId in friendStringIds)
             {
-                UUID friendID;
-                if (UUID.TryParse(friend.Friend, out friendID))
+                UUID friendUuid;
+                if (UUID.TryParse(friendStringId, out friendUuid))
                 {
-                    // Try local
-                    if (LocalStatusNotification(userID, friendID, online))
+                    if (LocalStatusNotification(userID, friendUuid, online))
                         continue;
 
-                    // The friend is not here [as root]. Let's forward.
-                    PresenceInfo[] friendSessions = PresenceService.GetAgents(new string[] { friendID.ToString() });
-                    if (friendSessions != null && friendSessions.Length > 0)
-                    {
-                        PresenceInfo friendSession = null;
-                        foreach (PresenceInfo pinfo in friendSessions)
-                        {
-                            if (pinfo.RegionID != UUID.Zero) // let's guard against sessions-gone-bad
-                            {
-                                friendSession = pinfo;
-                                break;
-                            }
-                        }
-
-                        if (friendSession != null)
-                        {
-                            GridRegion region = GridService.GetRegionByUUID(m_Scenes[0].RegionInfo.ScopeID, friendSession.RegionID);
-                            //m_log.DebugFormat("[FRIENDS]: Remote Notify to region {0}", region.RegionName);
-                            m_FriendsSimConnector.StatusNotify(region, userID, friendID, online);
-                        }
-                    }
-
-                    // Friend is not online. Ignore.
+                    remoteFriendStringIds.Add(friendStringId);
                 }
                 else
                 {
-                    m_log.WarnFormat("[FRIENDS]: Error parsing friend ID {0}", friend.Friend);
+                    m_log.WarnFormat("[FRIENDS]: Error parsing friend ID {0}", friendStringId);
+                }
+            }
+
+            // We do this regrouping so that we can efficiently send a single request rather than one for each
+            // friend in what may be a very large friends list.
+            PresenceInfo[] friendSessions = PresenceService.GetAgents(remoteFriendStringIds.ToArray());
+
+            foreach (PresenceInfo friendSession in friendSessions)
+            {
+                // let's guard against sessions-gone-bad
+                if (friendSession.RegionID != UUID.Zero)
+                {
+                    GridRegion region = GridService.GetRegionByUUID(m_Scenes[0].RegionInfo.ScopeID, friendSession.RegionID);
+                    //m_log.DebugFormat("[FRIENDS]: Remote Notify to region {0}", region.RegionName);
+                    m_FriendsSimConnector.StatusNotify(region, userID, friendSession.UserID, online);
                 }
             }
         }
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index 617a350..90fe430 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -486,6 +486,8 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             if (sp.ParentID != (uint)0)
                 sp.StandUp();
 
+            // At least on LL 3.3.4, this is not strictly necessary - a teleport will succeed without sending this to
+            // the viewer.  However, it might mean that the viewer does not see the black teleport screen (untested).
             sp.ControllingClient.SendTeleportStart(teleportFlags);
 
             // the avatar.Close below will clear the child region list. We need this below for (possibly)
@@ -561,8 +563,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                     // So let's wait
                     Thread.Sleep(200);
 
+                    // At least on LL 3.3.4 for teleports between different regions on the same simulator this appears
+                    // unnecessary - teleport will succeed and SEED caps will be requested without it (though possibly
+                    // only on TeleportFinish).  This is untested for region teleport between different simulators
+                    // though this probably also works.
                     m_eqModule.EstablishAgentCommunication(sp.UUID, endPoint, capsPath);
-
                 }
                 else
                 {
diff --git a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
index 1f340df..93a045e 100644
--- a/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
+++ b/OpenSim/Region/CoreModules/Scripting/DynamicTexture/DynamicTextureModule.cs
@@ -42,7 +42,7 @@ namespace OpenSim.Region.CoreModules.Scripting.DynamicTexture
 {
     public class DynamicTextureModule : IRegionModule, IDynamicTextureManager
     {
-        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private const int ALL_SIDES = -1;
 
diff --git a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
index a6923ef..ea806ec 100644
--- a/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
+++ b/OpenSim/Region/CoreModules/World/Archiver/ArchiveReadRequest.cs
@@ -290,7 +290,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
 
             foreach (DearchiveContext sceneContext in sceneContexts.Values)
             {
-                m_log.InfoFormat("[ARCHIVER:] Loading region {0}", sceneContext.Scene.RegionInfo.RegionName);
+                m_log.InfoFormat("[ARCHIVER]: Loading region {0}", sceneContext.Scene.RegionInfo.RegionName);
 
                 if (!m_merge)
                 {
@@ -324,7 +324,7 @@ namespace OpenSim.Region.CoreModules.World.Archiver
             Util.FireAndForget(delegate(object o)
             {
                 Thread.Sleep(15000);
-                m_log.Info("Starting scripts in scene objects");
+                m_log.Info("[ARCHIVER]: Starting scripts in scene objects");
 
                 foreach (DearchiveContext sceneContext in sceneContexts.Values)
                 {
diff --git a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
index 8b7406d..95edf62 100644
--- a/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/CoreModules/World/Land/LandManagementModule.cs
@@ -207,6 +207,7 @@ namespace OpenSim.Region.CoreModules.World.Land
             client.OnParcelInfoRequest += ClientOnParcelInfoRequest;
             client.OnParcelDeedToGroup += ClientOnParcelDeedToGroup;
             client.OnPreAgentUpdate += ClientOnPreAgentUpdate;
+            client.OnParcelDwellRequest += ClientOnParcelDwellRequest;
 
             EntityBase presenceEntity;
             if (m_scene.Entities.TryGetValue(client.AgentId, out presenceEntity) && presenceEntity is ScenePresence)
@@ -798,6 +799,17 @@ namespace OpenSim.Region.CoreModules.World.Land
             }
         }
 
+        private void ClientOnParcelDwellRequest(int localID, IClientAPI client)
+        {
+            ILandObject parcel = null;
+            lock (m_landList)
+            {
+                if (!m_landList.TryGetValue(localID, out parcel))
+                    return;
+            }
+            client.SendParcelDwellReply(localID, parcel.LandData.GlobalID, parcel.LandData.Dwell);
+        }
+
         #endregion
 
         #region Parcel Modification
diff --git a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
index 6e39e9a..87241e1 100644
--- a/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
+++ b/OpenSim/Region/CoreModules/World/Objects/Commands/ObjectCommandsModule.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using System.Text;
 using System.Text.RegularExpressions;
@@ -83,53 +84,87 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object owner",
                 "delete object owner <UUID>",
-                "Delete a scene object by owner", HandleDeleteObject);
+                "Delete scene objects by owner",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object creator",
                 "delete object creator <UUID>",
-                "Delete a scene object by creator", HandleDeleteObject);
+                "Delete scene objects by creator",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object uuid",
                 "delete object uuid <UUID>",
-                "Delete a scene object by uuid", HandleDeleteObject);
+                "Delete a scene object by uuid",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object name",
                 "delete object name [--regex] <name>",
                 "Delete a scene object by name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "Command will ask for confirmation before proceeding.\n"
+                  + "If --regex is specified then the name is treatead as a regular expression",
                 HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects", false, "delete object outside",
                 "delete object outside",
-                "Delete all scene objects outside region boundaries", HandleDeleteObject);
+                "Delete all scene objects outside region boundaries",
+                "Command will ask for confirmation before proceeding.",
+                HandleDeleteObject);
+
+            m_console.Commands.AddCommand(
+                "Objects",
+                false,
+                "delete object pos",
+                "delete object pos <start-coord> to <end-coord>",
+                "Delete scene objects within the given area.",
+                "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
+                    + "If you don't care about the z component you can simply omit it.\n"
+                    + "If you don't care about the x or y components then you can leave them blank (though a comma is still required)\n"
+                    + "If you want to specify the maxmimum value of a component then you can use ~ instead of a number\n"
+                    + "If you want to specify the minimum value of a component then you can use -~ instead of a number\n"
+                    + "e.g.\n"
+                    + "delete object pos 20,20,20 to 40,40,40\n"
+                    + "delete object pos 20,20 to 40,40\n"
+                    + "delete object pos ,20,20 to ,40,40\n"
+                    + "delete object pos ,,30 to ,,~\n"
+                    + "delete object pos ,,-~ to ,,30",
+                HandleDeleteObject);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
                 "show object uuid",
-                "show object uuid <UUID>",
-                "Show details of a scene object with the given UUID", HandleShowObjectByUuid);
+                "show object uuid [--full] <UUID>",
+                "Show details of a scene object with the given UUID",
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.",
+                HandleShowObjectByUuid);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
                 "show object name",
-                "show object name [--regex] <name>",
+                "show object name [--full] [--regex] <name>",
                 "Show details of scene objects with the given name.",
-                "If --regex is specified then the name is treatead as a regular expression",
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.\n"
+                    + "If --regex is specified then the name is treatead as a regular expression.",
                 HandleShowObjectByName);
 
             m_console.Commands.AddCommand(
                 "Objects",
                 false,
                 "show object pos",
-                "show object pos <start-coord> to <end-coord>",
+                "show object pos [--full] <start-coord> to <end-coord>",
                 "Show details of scene objects within the given area.",
-                "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
+                "The --full option will print out information on all the parts of the object.\n"
+                    + "For yet more detailed part information, use the \"show part\" commands.\n"
+                    + "Each component of the coord is comma separated.  There must be no spaces between the commas.\n"
                     + "If you don't care about the z component you can simply omit it.\n"
                     + "If you don't care about the x or y components then you can leave them blank (though a comma is still required)\n"
                     + "If you want to specify the maxmimum value of a component then you can use ~ instead of a number\n"
@@ -188,7 +223,12 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 //            m_log.DebugFormat("[OBJECTS COMMANDS MODULE]: REGION {0} LOADED", scene.RegionInfo.RegionName);
         }
 
-        private void OutputSogsToConsole(Predicate<SceneObjectGroup> searchPredicate)
+        /// <summary>
+        /// Outputs the sogs to console.
+        /// </summary>
+        /// <param name='searchPredicate'></param>
+        /// <param name='showFull'>If true then output all part details.  If false then output summary.</param>
+        private void OutputSogsToConsole(Predicate<SceneObjectGroup> searchPredicate, bool showFull)
         {
             List<SceneObjectGroup> sceneObjects = m_scene.GetSceneObjectGroups().FindAll(searchPredicate);
 
@@ -196,7 +236,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
             foreach (SceneObjectGroup so in sceneObjects)
             {
-                AddSceneObjectReport(sb, so);
+                AddSceneObjectReport(sb, so, showFull);
                 sb.Append("\n");
             }
 
@@ -205,7 +245,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_console.OutputFormat(sb.ToString());
         }
 
-        private void OutputSopsToConsole(Predicate<SceneObjectPart> searchPredicate)
+        private void OutputSopsToConsole(Predicate<SceneObjectPart> searchPredicate, bool showFull)
         {
             List<SceneObjectGroup> sceneObjects = m_scene.GetSceneObjectGroups();
             List<SceneObjectPart> parts = new List<SceneObjectPart>();
@@ -216,7 +256,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
             foreach (SceneObjectPart part in parts)
             {
-                AddScenePartReport(sb, part);
+                AddScenePartReport(sb, part, showFull);
                 sb.Append("\n");
             }
 
@@ -225,21 +265,26 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             m_console.OutputFormat(sb.ToString());
         }
 
-        private void HandleShowObjectByUuid(string module, string[] cmd)
+        private void HandleShowObjectByUuid(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmd.Length < 4)
+            bool showFull = false;
+            OptionSet options = new OptionSet().Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 4)
             {
                 m_console.OutputFormat("Usage: show object uuid <uuid>");
                 return;
             }
 
             UUID objectUuid;
-            if (!UUID.TryParse(cmd[3], out objectUuid))
+            if (!UUID.TryParse(mainParams[3], out objectUuid))
             {
-                m_console.OutputFormat("{0} is not a valid uuid", cmd[3]);
+                m_console.OutputFormat("{0} is not a valid uuid", mainParams[3]);
                 return;
             }
 
@@ -252,7 +297,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             }
 
             StringBuilder sb = new StringBuilder();
-            AddSceneObjectReport(sb, so);
+            AddSceneObjectReport(sb, so, showFull);
 
             m_console.OutputFormat(sb.ToString());
         }
@@ -262,14 +307,17 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
+            bool showFull = false;
             bool useRegex = false;
-            OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
+            OptionSet options = new OptionSet();
+            options.Add("full", v => showFull = v != null );
+            options.Add("regex", v => useRegex = v != null );
 
             List<string> mainParams = options.Parse(cmdparams);
 
             if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show object name [--regex] <name>");
+                m_console.OutputFormat("Usage: show object name [--full] [--regex] <name>");
                 return;
             }
 
@@ -287,7 +335,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 searchPredicate = so => so.Name == name;
             }
 
-            OutputSogsToConsole(searchPredicate);
+            OutputSogsToConsole(searchPredicate, showFull);
         }
 
         private void HandleShowObjectByPos(string module, string[] cmdparams)
@@ -295,51 +343,49 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmdparams.Length < 5)
-            {
-                m_console.OutputFormat("Usage: show object pos <start-coord> to <end-coord>");
-                return;
-            }
+            bool showFull = false;
+            OptionSet options = new OptionSet().Add("full", v => showFull = v != null );
 
-            string rawConsoleStartVector = cmdparams[3];
-            Vector3 startVector;
+            List<string> mainParams = options.Parse(cmdparams);
 
-            if (!ConsoleUtil.TryParseConsoleMinVector(rawConsoleStartVector, out startVector))
+            if (mainParams.Count < 5)
             {
-                m_console.OutputFormat("Error: Start vector {0} does not have a valid format", rawConsoleStartVector);
+                m_console.OutputFormat("Usage: show object pos [--full] <start-coord> to <end-coord>");
                 return;
             }
 
-            string rawConsoleEndVector = cmdparams[5];
-            Vector3 endVector;
+            Vector3 startVector, endVector;
 
-            if (!ConsoleUtil.TryParseConsoleMaxVector(rawConsoleEndVector, out endVector))
-            {
-                m_console.OutputFormat("Error: End vector {0} does not have a valid format", rawConsoleEndVector);
+            if (!TryParseVectorRange(cmdparams.Skip(3).Take(3), out startVector, out endVector))
                 return;
-            }
 
             Predicate<SceneObjectGroup> searchPredicate
                 = so => Util.IsInsideBox(so.AbsolutePosition, startVector, endVector);
 
-            OutputSogsToConsole(searchPredicate);
+            OutputSogsToConsole(searchPredicate, showFull);
         }
 
-        private void HandleShowPartByUuid(string module, string[] cmd)
+        private void HandleShowPartByUuid(string module, string[] cmdparams)
         {
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmd.Length < 4)
+//            bool showFull = false;
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show part uuid <uuid>");
+                m_console.OutputFormat("Usage: show part uuid [--full] <uuid>");
                 return;
             }
 
             UUID objectUuid;
-            if (!UUID.TryParse(cmd[3], out objectUuid))
+            if (!UUID.TryParse(mainParams[3], out objectUuid))
             {
-                m_console.OutputFormat("{0} is not a valid uuid", cmd[3]);
+                m_console.OutputFormat("{0} is not a valid uuid", mainParams[3]);
                 return;
             }
 
@@ -352,7 +398,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             }
 
             StringBuilder sb = new StringBuilder();
-            AddScenePartReport(sb, sop);
+            AddScenePartReport(sb, sop, true);
 
             m_console.OutputFormat(sb.ToString());
         }
@@ -362,13 +408,19 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
-            if (cmdparams.Length < 5)
+//            bool showFull = false;
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+
+            List<string> mainParams = options.Parse(cmdparams);
+
+            if (mainParams.Count < 5)
             {
-                m_console.OutputFormat("Usage: show part pos <start-coord> to <end-coord>");
+                m_console.OutputFormat("Usage: show part pos [--full] <start-coord> to <end-coord>");
                 return;
             }
 
-            string rawConsoleStartVector = cmdparams[3];
+            string rawConsoleStartVector = mainParams[3];
             Vector3 startVector;
 
             if (!ConsoleUtil.TryParseConsoleMinVector(rawConsoleStartVector, out startVector))
@@ -377,7 +429,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 return;
             }
 
-            string rawConsoleEndVector = cmdparams[5];
+            string rawConsoleEndVector = mainParams[5];
             Vector3 endVector;
 
             if (!ConsoleUtil.TryParseConsoleMaxVector(rawConsoleEndVector, out endVector))
@@ -386,7 +438,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 return;
             }
 
-            OutputSopsToConsole(sop => Util.IsInsideBox(sop.AbsolutePosition, startVector, endVector));
+            OutputSopsToConsole(sop => Util.IsInsideBox(sop.AbsolutePosition, startVector, endVector), true);
         }
 
         private void HandleShowPartByName(string module, string[] cmdparams)
@@ -394,14 +446,17 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
             if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
                 return;
 
+//            bool showFull = false;
             bool useRegex = false;
-            OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
+            OptionSet options = new OptionSet();
+//            options.Add("full", v => showFull = v != null );
+            options.Add("regex", v => useRegex = v != null );
 
             List<string> mainParams = options.Parse(cmdparams);
 
             if (mainParams.Count < 4)
             {
-                m_console.OutputFormat("Usage: show part name [--regex] <name>");
+                m_console.OutputFormat("Usage: show part name [--full] [--regex] <name>");
                 return;
             }
 
@@ -419,31 +474,112 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                 searchPredicate = sop => sop.Name == name;
             }
 
-            OutputSopsToConsole(searchPredicate);
+            OutputSopsToConsole(searchPredicate, true);
         }
 
-        private StringBuilder AddSceneObjectReport(StringBuilder sb, SceneObjectGroup so)
+        /// <summary>
+        /// Append a scene object report to an input StringBuilder
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sb'></param>
+        /// <param name='so'</param>
+        /// <param name='showFull'>
+        /// If true then information on all parts of an object is appended.
+        /// If false then only summary information about an object is appended.
+        /// </param>
+        private StringBuilder AddSceneObjectReport(StringBuilder sb, SceneObjectGroup so, bool showFull)
         {
-            sb.AppendFormat("Name:        {0}\n", so.Name);
-            sb.AppendFormat("Description: {0}\n", so.Description);
-            sb.AppendFormat("Location:    {0} @ {1}\n", so.AbsolutePosition, so.Scene.RegionInfo.RegionName);
-            sb.AppendFormat("Parts:       {0}\n", so.PrimCount);
-            sb.AppendFormat("Flags:       {0}\n", so.RootPart.Flags);
+            if (showFull)
+            {
+                foreach (SceneObjectPart sop in so.Parts)
+                {
+                    AddScenePartReport(sb, sop, false);
+                    sb.Append("\n");
+                }
+            }
+            else
+            {
+                AddSummarySceneObjectReport(sb, so);
+            }
 
             return sb;
         }
 
-        private StringBuilder AddScenePartReport(StringBuilder sb, SceneObjectPart sop)
+        private StringBuilder AddSummarySceneObjectReport(StringBuilder sb, SceneObjectGroup so)
         {
-            sb.AppendFormat("Name:        {0}\n", sop.Name);
-            sb.AppendFormat("Description: {0}\n", sop.Description);
-            sb.AppendFormat("Location:    {0} @ {1}\n", sop.AbsolutePosition, sop.ParentGroup.Scene.RegionInfo.RegionName);
-            sb.AppendFormat("Parent:      {0}",
-                sop.IsRoot ? "Is Root\n" : string.Format("{0} {1}\n", sop.ParentGroup.Name, sop.ParentGroup.UUID));
-            sb.AppendFormat("Link number: {0}\n", sop.LinkNum);
-            sb.AppendFormat("Flags:       {0}\n", sop.Flags);
+            ConsoleDisplayList cdl = new ConsoleDisplayList();
+            cdl.AddRow("Name", so.Name);
+            cdl.AddRow("Descrition", so.Description);
+            cdl.AddRow("Local ID", so.LocalId);
+            cdl.AddRow("UUID", so.UUID);
+            cdl.AddRow("Location", string.Format("{0} @ {1}", so.AbsolutePosition, so.Scene.Name));
+            cdl.AddRow("Parts", so.PrimCount);
+            cdl.AddRow("Flags", so.RootPart.Flags);
+
+            return sb.Append(cdl.ToString());
+        }
 
-            return sb;
+        /// <summary>
+        /// Append a scene object part report to an input StringBuilder
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sb'></param>
+        /// <param name='sop'</param>
+        /// <param name='showFull'>
+        /// If true then information on each inventory item will be shown.
+        /// If false then only summary inventory information is shown.
+        /// </param>
+        private StringBuilder AddScenePartReport(StringBuilder sb, SceneObjectPart sop, bool showFull)
+        {
+            ConsoleDisplayList cdl = new ConsoleDisplayList();
+            cdl.AddRow("Name", sop.Name);
+            cdl.AddRow("Description", sop.Description);
+            cdl.AddRow("Local ID", sop.LocalId);
+            cdl.AddRow("UUID", sop.UUID);
+            cdl.AddRow("Location",  string.Format("{0} @ {1}", sop.AbsolutePosition, sop.ParentGroup.Scene.Name));
+            cdl.AddRow(
+                "Parent",
+                sop.IsRoot ? "Is Root" : string.Format("{0} {1}", sop.ParentGroup.Name, sop.ParentGroup.UUID));
+            cdl.AddRow("Link number", sop.LinkNum);
+            cdl.AddRow("Flags", sop.Flags);
+
+            object itemsOutput;
+            if (showFull)
+            {
+                StringBuilder itemsSb = new StringBuilder("\n");
+                itemsOutput = AddScenePartItemsReport(itemsSb, sop.Inventory).ToString();
+            }
+            else
+            {
+                itemsOutput = sop.Inventory.Count;
+            }
+
+
+            cdl.AddRow("Items", itemsOutput);
+
+            return sb.Append(cdl.ToString());
+        }
+
+        private StringBuilder AddScenePartItemsReport(StringBuilder sb, IEntityInventory inv)
+        {
+            ConsoleDisplayTable cdt = new ConsoleDisplayTable();
+            cdt.Indent = 2;
+
+            cdt.AddColumn("Name", 50);
+            cdt.AddColumn("Type", 12);
+            cdt.AddColumn("Running", 7);
+            cdt.AddColumn("Item UUID", 36);
+            cdt.AddColumn("Asset UUID", 36);
+
+            foreach (TaskInventoryItem item in inv.GetInventoryItems())
+                cdt.AddRow(
+                    item.Name,
+                    ((InventoryType)item.InvType).ToString(),
+                    (InventoryType)item.InvType == InventoryType.LSL ? item.ScriptRunning.ToString() : "n/a",
+                    item.ItemID.ToString(),
+                    item.AssetID.ToString());
+
+            return sb.Append(cdt.ToString());
         }
 
         private void HandleDeleteObject(string module, string[] cmd)
@@ -557,6 +693,10 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
         
                     break;
 
+                case "pos":
+                    deletes = GetDeleteCandidatesByPos(module, cmd);
+                    break;
+
                 default:
                     m_console.OutputFormat("Unrecognized mode {0}", mode);
                     return;
@@ -571,7 +711,7 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
                     string.Format(
                         "Are you sure that you want to delete {0} objects from {1}",
                         deletes.Count, m_scene.RegionInfo.RegionName),
-                    "n");
+                    "y/N");
     
                 if (response.ToLower() != "y")
                 {
@@ -593,9 +733,6 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
         private List<SceneObjectGroup> GetDeleteCandidatesByName(string module, string[] cmdparams)
         {
-            if (!(m_console.ConsoleScene == null || m_console.ConsoleScene == m_scene))
-                return null;
-
             bool useRegex = false;
             OptionSet options = new OptionSet().Add("regex", v=> useRegex = v != null );
 
@@ -629,5 +766,52 @@ namespace OpenSim.Region.CoreModules.World.Objects.Commands
 
             return sceneObjects;
         }
+
+        /// <summary>
+        /// Get scene object delete candidates by position
+        /// </summary>
+        /// <param name='module'></param>
+        /// <param name='cmdparams'></param>
+        /// <returns>null if parsing failed on one of the arguments, otherwise a list of objects to delete.  If there
+        /// are no objects to delete then the list will be empty./returns>
+        private List<SceneObjectGroup> GetDeleteCandidatesByPos(string module, string[] cmdparams)
+        {
+            if (cmdparams.Length < 5)
+            {
+                m_console.OutputFormat("Usage: delete object pos <start-coord> to <end-coord>");
+                return null;
+            }
+
+            Vector3 startVector, endVector;
+
+            if (!TryParseVectorRange(cmdparams.Skip(3).Take(3), out startVector, out endVector))
+                return null;
+
+            return m_scene.GetSceneObjectGroups().FindAll(
+                so => !so.IsAttachment && Util.IsInsideBox(so.AbsolutePosition, startVector, endVector));
+        }
+
+        private bool TryParseVectorRange(IEnumerable<string> rawComponents, out Vector3 startVector, out Vector3 endVector)
+        {
+            string rawConsoleStartVector = rawComponents.Take(1).Single();
+
+            if (!ConsoleUtil.TryParseConsoleMinVector(rawConsoleStartVector, out startVector))
+            {
+                m_console.OutputFormat("Error: Start vector {0} does not have a valid format", rawConsoleStartVector);
+                endVector = Vector3.Zero;
+                
+                return false;
+            }
+
+            string rawConsoleEndVector = rawComponents.Skip(1).Take(1).Single();
+
+            if (!ConsoleUtil.TryParseConsoleMaxVector(rawConsoleEndVector, out endVector))
+            {
+                m_console.OutputFormat("Error: End vector {0} does not have a valid format", rawConsoleEndVector);
+                return false;
+            }
+
+            return true;
+        }
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
index 8d62847..c457b2f 100644
--- a/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
+++ b/OpenSim/Region/Framework/Interfaces/IEntityInventory.cs
@@ -268,17 +268,25 @@ namespace OpenSim.Region.Framework.Interfaces
         void ApplyGodPermissions(uint perms);
 
         /// <summary>
+        /// Number of items in this inventory.
+        /// </summary>
+        int Count { get; }
+
+        /// <summary>
         /// Returns true if this inventory contains any scripts
         /// </summary></returns>
         bool ContainsScripts();
 
         /// <summary>
-        /// Returns the count of scripts contained
-        /// </summary></returns>
+        /// Number of scripts in this inventory.
+        /// </summary>
+        /// <remarks>
+        /// Includes both running and non running scripts.
+        /// </remarks>
         int ScriptCount();
 
         /// <summary>
-        /// Returns the count of running scripts contained
+        /// Number of running scripts in this inventory.
         /// </summary></returns>
         int RunningScriptCount();
 
diff --git a/OpenSim/Region/Framework/Scenes/EventManager.cs b/OpenSim/Region/Framework/Scenes/EventManager.cs
index a8ff218..4c49b71 100644
--- a/OpenSim/Region/Framework/Scenes/EventManager.cs
+++ b/OpenSim/Region/Framework/Scenes/EventManager.cs
@@ -121,13 +121,21 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// This is triggered for both child and root agent client connections.
+        ///
         /// Triggered before OnClientLogin.
+        ///
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
         /// </remarks>
         public event OnNewClientDelegate OnNewClient;
 
         /// <summary>
         /// Fired if the client entering this sim is doing so as a new login
         /// </summary>
+        /// <remarks>
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
+        /// </remarks>
         public event Action<IClientAPI> OnClientLogin;
 
         public delegate void OnNewPresenceDelegate(ScenePresence presence);
@@ -149,6 +157,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// <remarks>
         /// Triggered in <see cref="OpenSim.Region.Framework.Scenes.Scene.AddNewClient"/> which is used by both
         /// <see cref="OpenSim.Framework.PresenceType.User">users</see> and <see cref="OpenSim.Framework.PresenceType.Npc">NPCs</see>
+        /// 
+        /// Triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
         /// </remarks>
         public event OnRemovePresenceDelegate OnRemovePresence;
 
@@ -425,6 +436,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         /// <remarks>
         /// At the point of firing, the scene still contains the client's scene presence.
+        ///
+        /// This is triggered under per-agent lock.  So if you want to perform any long-running operations, please
+        /// do this on a separate thread.
         /// </remarks>
         public event ClientClosed OnClientClosed;
 
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 671feda..5f45529 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -80,6 +80,11 @@ namespace OpenSim.Region.Framework.Scenes
         public SynchronizeSceneHandler SynchronizeScene;
 
         /// <summary>
+        /// Used to prevent simultaneous calls to RemoveClient() for the same agent from interfering with each other.
+        /// </summary>
+        private object m_removeClientLock = new object();
+
+        /// <summary>
         /// Statistical information for this scene.
         /// </summary>
         public SimStatsReporter StatsReporter { get; private set; }
@@ -301,6 +306,31 @@ namespace OpenSim.Region.Framework.Scenes
         }
         private volatile bool m_shuttingDown;
 
+        /// <summary>
+        /// Is the scene active?
+        /// </summary>
+        /// <remarks>
+        /// If false, maintenance and update loops are not being run.  Updates can still be triggered manually if
+        /// the scene is not active.
+        /// </remarks>
+        public bool Active
+        {
+            get { return m_active; }
+            set
+            {
+                if (value)
+                {
+                    if (!m_active)
+                        Start();
+                }
+                else
+                {
+                    m_active = false;
+                }
+            }
+        }
+        private volatile bool m_active;
+
 //        private int m_lastUpdate;
 //        private bool m_firstHeartbeat = true;
         
@@ -1154,6 +1184,14 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void SetSceneCoreDebug(Dictionary<string, string> options)
         {
+            if (options.ContainsKey("active"))
+            {
+                bool active;
+
+                if (bool.TryParse(options["active"], out active))
+                    Active = active;
+            }
+
             if (options.ContainsKey("scripting"))
             {
                 bool enableScripts = true;
@@ -1293,6 +1331,8 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void Start()
         {
+            m_active = true;
+
 //            m_log.DebugFormat("[SCENE]: Starting Heartbeat timer for {0}", RegionInfo.RegionName);
 
             //m_heartbeatTimer.Enabled = true;
@@ -1334,7 +1374,7 @@ namespace OpenSim.Region.Framework.Scenes
         #region Update Methods
 
         /// <summary>
-        /// Performs per-frame updates regularly
+        /// Activate the various loops necessary to continually update the scene.
         /// </summary>
         private void Heartbeat()
         {
@@ -1391,7 +1431,7 @@ namespace OpenSim.Region.Framework.Scenes
             List<Vector3> coarseLocations;
             List<UUID> avatarUUIDs;
 
-            while (!m_shuttingDown && (endRun == null || MaintenanceRun < endRun))
+            while (!m_shuttingDown && ((endRun == null && Active) || MaintenanceRun < endRun))
             {
                 runtc = Util.EnvironmentTickCount();
                 ++MaintenanceRun;
@@ -1450,7 +1490,7 @@ namespace OpenSim.Region.Framework.Scenes
             int previousFrameTick, tmpMS;
             int maintc = Util.EnvironmentTickCount();
 
-            while (!m_shuttingDown && (endFrame == null || Frame < endFrame))
+            while (!m_shuttingDown && ((endFrame == null && Active) || Frame < endFrame))
             {
                 ++Frame;
 
@@ -2709,69 +2749,89 @@ namespace OpenSim.Region.Framework.Scenes
 
         public override ISceneAgent AddNewClient(IClientAPI client, PresenceType type)
         {
+            ScenePresence sp;
+            bool vialogin;
+
             // Validation occurs in LLUDPServer
+            //
+            // XXX: A race condition exists here where two simultaneous calls to AddNewClient can interfere with
+            // each other.  In practice, this does not currently occur in the code.
             AgentCircuitData aCircuit = m_authenticateHandler.GetAgentCircuitData(client.CircuitCode);
 
-            bool vialogin
-                = (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0
-                    || (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaLogin) != 0;
-
-//            CheckHeartbeat();
-
-            ScenePresence sp = GetScenePresence(client.AgentId);
-
-            // XXX: Not sure how good it is to add a new client if a scene presence already exists.  Possibly this
-            // could occur if a viewer crashes and relogs before the old client is kicked out.  But this could cause
-            // other problems, and possible the code calling AddNewClient() should ensure that no client is already
-            // connected.
-            if (sp == null)
-            {
-                m_log.DebugFormat(
-                    "[SCENE]: Adding new child scene presence {0} {1} to scene {2} at pos {3}",
-                    client.Name, client.AgentId, RegionInfo.RegionName, client.StartPos);
-
-                m_clientManager.Add(client);
-                SubscribeToClientEvents(client);
-
-                sp = m_sceneGraph.CreateAndAddChildScenePresence(client, aCircuit.Appearance, type);
-                m_eventManager.TriggerOnNewPresence(sp);
-
-                sp.TeleportFlags = (TPFlags)aCircuit.teleportFlags;
+            // We lock here on AgentCircuitData to prevent a race condition between the thread adding a new connection
+            // and a simultaneous one that removes it (as can happen if the client is closed at a particular point
+            // whilst connecting).
+            //
+            // It would be easier to lock across all NewUserConnection(), AddNewClient() and
+            // RemoveClient() calls for all agents, but this would allow a slow call (e.g. because of slow service
+            // response in some module listening to AddNewClient()) from holding up unrelated agent calls.
+            //
+            // In practice, the lock (this) in LLUDPServer.AddNewClient() currently lock across all
+            // AddNewClient() operations (though not other ops).
+            // In the future this can be relieved once locking per agent (not necessarily on AgentCircuitData) is improved.
+            lock (aCircuit)
+            {
+                vialogin
+                    = (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaHGLogin) != 0
+                        || (aCircuit.teleportFlags & (uint)Constants.TeleportFlags.ViaLogin) != 0;
+    
+    //            CheckHeartbeat();
+    
+                sp = GetScenePresence(client.AgentId);
 
-                // The first agent upon login is a root agent by design.
-                // For this agent we will have to rez the attachments.
-                // All other AddNewClient calls find aCircuit.child to be true.
-                if (aCircuit.child == false)
+                // XXX: Not sure how good it is to add a new client if a scene presence already exists.  Possibly this
+                // could occur if a viewer crashes and relogs before the old client is kicked out.  But this could cause
+                // other problems, and possible the code calling AddNewClient() should ensure that no client is already
+                // connected.
+                if (sp == null)
                 {
-                    // We have to set SP to be a root agent here so that SP.MakeRootAgent() will later not try to
-                    // start the scripts again (since this is done in RezAttachments()).
-                    // XXX: This is convoluted.
-                    sp.IsChildAgent = false;
-
-                    if (AttachmentsModule != null)
-                        Util.FireAndForget(delegate(object o) { AttachmentsModule.RezAttachments(sp); });
+                    m_log.DebugFormat(
+                        "[SCENE]: Adding new child scene presence {0} {1} to scene {2} at pos {3}",
+                        client.Name, client.AgentId, RegionInfo.RegionName, client.StartPos);
+    
+                    m_clientManager.Add(client);
+                    SubscribeToClientEvents(client);
+    
+                    sp = m_sceneGraph.CreateAndAddChildScenePresence(client, aCircuit.Appearance, type);
+                    m_eventManager.TriggerOnNewPresence(sp);
+    
+                    sp.TeleportFlags = (TPFlags)aCircuit.teleportFlags;
+    
+                    // The first agent upon login is a root agent by design.
+                    // For this agent we will have to rez the attachments.
+                    // All other AddNewClient calls find aCircuit.child to be true.
+                    if (aCircuit.child == false)
+                    {
+                        // We have to set SP to be a root agent here so that SP.MakeRootAgent() will later not try to
+                        // start the scripts again (since this is done in RezAttachments()).
+                        // XXX: This is convoluted.
+                        sp.IsChildAgent = false;
+    
+                        if (AttachmentsModule != null)
+                            Util.FireAndForget(delegate(object o) { AttachmentsModule.RezAttachments(sp); });
+                    }
                 }
-            }
-            else
-            {
-                m_log.WarnFormat(
-                    "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
-                    sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
-            }
+                else
+                {
+                    m_log.WarnFormat(
+                        "[SCENE]: Already found {0} scene presence for {1} in {2} when asked to add new scene presence",
+                        sp.IsChildAgent ? "child" : "root", sp.Name, RegionInfo.RegionName);
+                }
+    
+                // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
+                // client is for a root or child agent.
+                client.SceneAgent = sp;
 
-            // We must set this here so that TriggerOnNewClient and TriggerOnClientLogin can determine whether the
-            // client is for a root or child agent.
-            client.SceneAgent = sp;
+                // Cache the user's name
+                CacheUserName(sp, aCircuit);
+    
+                EventManager.TriggerOnNewClient(client);
+                if (vialogin)
+                    EventManager.TriggerOnClientLogin(client);
+            }
 
             m_LastLogin = Util.EnvironmentTickCount();
 
-            // Cache the user's name
-            CacheUserName(sp, aCircuit);
-
-            EventManager.TriggerOnNewClient(client);
-            if (vialogin)
-                EventManager.TriggerOnClientLogin(client);
-
             return sp;
         }
 
@@ -3300,109 +3360,129 @@ namespace OpenSim.Region.Framework.Scenes
         {
 //            CheckHeartbeat();
             bool isChildAgent = false;
-            ScenePresence avatar = GetScenePresence(agentID);
+            AgentCircuitData acd;
 
-            if (avatar == null)
+            lock (m_removeClientLock)
             {
-                m_log.WarnFormat(
-                    "[SCENE]: Called RemoveClient() with agent ID {0} but no such presence is in the scene.", agentID);
-
-                return;
-            }
+                acd = m_authenticateHandler.GetAgentCircuitData(agentID);
 
-            try
-            {
-                isChildAgent = avatar.IsChildAgent;
-
-                m_log.DebugFormat(
-                    "[SCENE]: Removing {0} agent {1} {2} from {3}",
-                    (isChildAgent ? "child" : "root"), avatar.Name, agentID, RegionInfo.RegionName);
-
-                // Don't do this to root agents, it's not nice for the viewer
-                if (closeChildAgents && isChildAgent)
+                if (acd == null)
                 {
-                    // Tell a single agent to disconnect from the region.
-                    IEventQueue eq = RequestModuleInterface<IEventQueue>();
-                    if (eq != null)
-                    {
-                        eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
-                    }
-                    else
-                    {
-                        avatar.ControllingClient.SendShutdownConnectionNotice();
-                    }
+                    m_log.ErrorFormat("[SCENE]: No agent circuit found for {0}, aborting Scene.RemoveClient", agentID);
+                    return;
                 }
-
-                // Only applies to root agents.
-                if (avatar.ParentID != 0)
+                else
                 {
-                    avatar.StandUp();
+                    // We remove the acd up here to avoid later raec conditions if two RemoveClient() calls occurred
+                    // simultaneously.
+                    m_authenticateHandler.RemoveCircuit(acd.circuitcode);
                 }
+            }
 
-                m_sceneGraph.removeUserCount(!isChildAgent);
-
-                // TODO: We shouldn't use closeChildAgents here - it's being used by the NPC module to stop
-                // unnecessary operations.  This should go away once NPCs have no accompanying IClientAPI
-                if (closeChildAgents && CapsModule != null)
-                    CapsModule.RemoveCaps(agentID);
-
-                // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
-                // this method is doing is HORRIBLE!!!
-                avatar.Scene.NeedSceneCacheClear(avatar.UUID);
-
-                if (closeChildAgents && !isChildAgent)
+            lock (acd)
+            {
+                ScenePresence avatar = GetScenePresence(agentID);
+    
+                if (avatar == null)
                 {
-                    List<ulong> regions = avatar.KnownRegionHandles;
-                    regions.Remove(RegionInfo.RegionHandle);
-                    m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+                    m_log.WarnFormat(
+                        "[SCENE]: Called RemoveClient() with agent ID {0} but no such presence is in the scene.", agentID);
+    
+                    return;
                 }
-
-                m_eventManager.TriggerClientClosed(agentID, this);
-                m_eventManager.TriggerOnRemovePresence(agentID);
-
-                if (!isChildAgent)
+    
+                try
                 {
-                    if (AttachmentsModule != null)
+                    isChildAgent = avatar.IsChildAgent;
+
+                    m_log.DebugFormat(
+                        "[SCENE]: Removing {0} agent {1} {2} from {3}",
+                        (isChildAgent ? "child" : "root"), avatar.Name, agentID, RegionInfo.RegionName);
+    
+                    // Don't do this to root agents, it's not nice for the viewer
+                    if (closeChildAgents && isChildAgent)
                     {
-                        AttachmentsModule.DeRezAttachments(avatar);
+                        // Tell a single agent to disconnect from the region.
+                        IEventQueue eq = RequestModuleInterface<IEventQueue>();
+                        if (eq != null)
+                        {
+                            eq.DisableSimulator(RegionInfo.RegionHandle, avatar.UUID);
+                        }
+                        else
+                        {
+                            avatar.ControllingClient.SendShutdownConnectionNotice();
+                        }
                     }
-
-                    ForEachClient(
-                        delegate(IClientAPI client)
+    
+                    // Only applies to root agents.
+                    if (avatar.ParentID != 0)
+                    {
+                        avatar.StandUp();
+                    }
+    
+                    m_sceneGraph.removeUserCount(!isChildAgent);
+    
+                    // TODO: We shouldn't use closeChildAgents here - it's being used by the NPC module to stop
+                    // unnecessary operations.  This should go away once NPCs have no accompanying IClientAPI
+                    if (closeChildAgents && CapsModule != null)
+                        CapsModule.RemoveCaps(agentID);
+    
+                    // REFACTORING PROBLEM -- well not really a problem, but just to point out that whatever
+                    // this method is doing is HORRIBLE!!!
+                    avatar.Scene.NeedSceneCacheClear(avatar.UUID);
+    
+                    if (closeChildAgents && !isChildAgent)
+                    {
+                        List<ulong> regions = avatar.KnownRegionHandles;
+                        regions.Remove(RegionInfo.RegionHandle);
+                        m_sceneGridService.SendCloseChildAgentConnections(agentID, regions);
+                    }
+    
+                    m_eventManager.TriggerClientClosed(agentID, this);
+                    m_eventManager.TriggerOnRemovePresence(agentID);
+    
+                    if (!isChildAgent)
+                    {
+                        if (AttachmentsModule != null)
                         {
-                            //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
-                            try { client.SendKillObject(avatar.RegionHandle, new List<uint> { avatar.LocalId }); }
-                            catch (NullReferenceException) { }
-                        });
-                }
-
-                // It's possible for child agents to have transactions if changes are being made cross-border.
-                if (AgentTransactionsModule != null)
-                    AgentTransactionsModule.RemoveAgentAssetTransactions(agentID);
+                            AttachmentsModule.DeRezAttachments(avatar);
+                        }
 
-                m_authenticateHandler.RemoveCircuit(avatar.ControllingClient.CircuitCode);
-            }
-            catch (Exception e)
-            {
-                m_log.Error(
-                    string.Format("[SCENE]: Exception removing {0} from {1}.  Cleaning up.  Exception ", avatar.Name, Name), e);
-            }
-            finally
-            {
-                try
-                {
-                    // Always clean these structures up so that any failure above doesn't cause them to remain in the
-                    // scene with possibly bad effects (e.g. continually timing out on unacked packets and triggering
-                    // the same cleanup exception continually.
-                    m_sceneGraph.RemoveScenePresence(agentID);
-                    m_clientManager.Remove(agentID);
+                        ForEachClient(
+                            delegate(IClientAPI client)
+                            {
+                                //We can safely ignore null reference exceptions.  It means the avatar is dead and cleaned up anyway
+                                try { client.SendKillObject(avatar.RegionHandle, new List<uint> { avatar.LocalId }); }
+                                catch (NullReferenceException) { }
+                            });
+                    }
     
-                    avatar.Close();
+                    // It's possible for child agents to have transactions if changes are being made cross-border.
+                    if (AgentTransactionsModule != null)
+                        AgentTransactionsModule.RemoveAgentAssetTransactions(agentID);
                 }
                 catch (Exception e)
                 {
                     m_log.Error(
-                        string.Format("[SCENE]: Exception in final clean up of {0} in {1}.  Exception ", avatar.Name, Name), e);
+                        string.Format("[SCENE]: Exception removing {0} from {1}.  Cleaning up.  Exception ", avatar.Name, Name), e);
+                }
+                finally
+                {
+                    try
+                    {
+                        // Always clean these structures up so that any failure above doesn't cause them to remain in the
+                        // scene with possibly bad effects (e.g. continually timing out on unacked packets and triggering
+                        // the same cleanup exception continually.
+                        m_sceneGraph.RemoveScenePresence(agentID);
+                        m_clientManager.Remove(agentID);
+        
+                        avatar.Close();
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Error(
+                            string.Format("[SCENE]: Exception in final clean up of {0} in {1}.  Exception ", avatar.Name, Name), e);
+                    }
                 }
             }
 
@@ -3461,11 +3541,9 @@ namespace OpenSim.Region.Framework.Scenes
 
         /// <summary>
         /// Do the work necessary to initiate a new user connection for a particular scene.
-        /// At the moment, this consists of setting up the caps infrastructure
-        /// The return bool should allow for connections to be refused, but as not all calling paths
-        /// take proper notice of it let, we allowed banned users in still.
         /// </summary>
         /// <param name="agent">CircuitData of the agent who is connecting</param>
+        /// <param name="teleportFlags"></param>
         /// <param name="reason">Outputs the reason for the false response on this string</param>
         /// <returns>True if the region accepts this agent.  False if it does not.  False will 
         /// also return a reason.</returns>
@@ -3476,10 +3554,20 @@ namespace OpenSim.Region.Framework.Scenes
 
         /// <summary>
         /// Do the work necessary to initiate a new user connection for a particular scene.
-        /// At the moment, this consists of setting up the caps infrastructure
+        /// </summary>
+        /// <remarks>
+        /// The return bool should allow for connections to be refused, but as not all calling paths
+        /// take proper notice of it yet, we still allowed banned users in.
+        ///
+        /// At the moment this method consists of setting up the caps infrastructure
         /// The return bool should allow for connections to be refused, but as not all calling paths
         /// take proper notice of it let, we allowed banned users in still.
-        /// </summary>
+        ///
+        /// This method is called by the login service (in the case of login) or another simulator (in the case of region
+        /// cross or teleport) to initiate the connection.  It is not triggered by the viewer itself - the connection
+        /// is activated later when the viewer sends the initial UseCircuitCodePacket UDP packet (in the case of
+        /// the LLUDP stack).
+        /// </remarks>
         /// <param name="agent">CircuitData of the agent who is connecting</param>
         /// <param name="reason">Outputs the reason for the false response on this string</param>
         /// <param name="requirePresenceLookup">True for normal presence. False for NPC
@@ -3564,88 +3652,97 @@ namespace OpenSim.Region.Framework.Scenes
                     agent.firstname, agent.lastname, agent.Viewer);
                 reason = "Access denied, your viewer is banned by the region owner";
                 return false;
-            }           
-
-
-            ScenePresence sp = GetScenePresence(agent.AgentID);
-
-            if (sp != null && !sp.IsChildAgent)
-            {
-                // We have a zombie from a crashed session. 
-                // Or the same user is trying to be root twice here, won't work.
-                // Kill it.
-                m_log.WarnFormat(
-                    "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
-                    sp.Name, sp.UUID, RegionInfo.RegionName);
-
-                sp.ControllingClient.Close(true);
-                sp = null;
             }
 
-            ILandObject land = LandChannel.GetLandObject(agent.startpos.X, agent.startpos.Y);
+            ILandObject land;
 
-            //On login test land permisions
-            if (vialogin)
+            lock (agent)
             {
-                if (land != null && !TestLandRestrictions(agent, land, out reason))
+                ScenePresence sp = GetScenePresence(agent.AgentID);
+    
+                if (sp != null && !sp.IsChildAgent)
                 {
-                    return false;
+                    // We have a zombie from a crashed session. 
+                    // Or the same user is trying to be root twice here, won't work.
+                    // Kill it.
+                    m_log.WarnFormat(
+                        "[SCENE]: Existing root scene presence detected for {0} {1} in {2} when connecting.  Removing existing presence.",
+                        sp.Name, sp.UUID, RegionInfo.RegionName);
+    
+                    sp.ControllingClient.Close(true);
+                    sp = null;
                 }
-            }
-
-            if (sp == null) // We don't have an [child] agent here already
-            {
-                if (requirePresenceLookup)
+    
+                land = LandChannel.GetLandObject(agent.startpos.X, agent.startpos.Y);
+    
+                //On login test land permisions
+                if (vialogin)
                 {
-                    try
+                    if (land != null && !TestLandRestrictions(agent, land, out reason))
                     {
-                        if (!VerifyUserPresence(agent, out reason))
-                            return false;
-                    } catch (Exception e)
-                    {
-                        m_log.ErrorFormat(
-                            "[SCENE]: Exception verifying presence {0}{1}", e.Message, e.StackTrace);
                         return false;
                     }
                 }
-
-                try
-                {
-                    if (!AuthorizeUser(agent, out reason))
-                        return false;
-                } catch (Exception e)
-                {
-                    m_log.ErrorFormat(
-                        "[SCENE]: Exception authorizing user {0}{1}", e.Message, e.StackTrace);
-                    return false;
-                }
-
-                m_log.InfoFormat(
-                    "[SCENE]: Region {0} authenticated and authorized incoming {1} agent {2} {3} {4} (circuit code {5})",
-                    RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
-                    agent.AgentID, agent.circuitcode);
-
-                if (CapsModule != null)
+    
+                if (sp == null) // We don't have an [child] agent here already
                 {
-                    CapsModule.SetAgentCapsSeeds(agent);
-                    CapsModule.CreateCaps(agent.AgentID);
-                }
-            } else
-            {
-                // Let the SP know how we got here. This has a lot of interesting
-                // uses down the line.
-                sp.TeleportFlags = (TPFlags)teleportFlags;
+                    if (requirePresenceLookup)
+                    {
+                        try
+                        {
+                            if (!VerifyUserPresence(agent, out reason))
+                                return false;
+                        }
+                        catch (Exception e)
+                        {
+                            m_log.ErrorFormat(
+                                "[SCENE]: Exception verifying presence {0}{1}", e.Message, e.StackTrace);
 
-                if (sp.IsChildAgent)
-                {
-                    m_log.DebugFormat(
-                        "[SCENE]: Adjusting known seeds for existing agent {0} in {1}",
-                        agent.AgentID, RegionInfo.RegionName);
+                            return false;
+                        }
+                    }
+    
+                    try
+                    {
+                        if (!AuthorizeUser(agent, out reason))
+                            return false;
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat(
+                            "[SCENE]: Exception authorizing user {0}{1}", e.Message, e.StackTrace);
 
-                    sp.AdjustKnownSeeds();
-                    
+                        return false;
+                    }
+    
+                    m_log.InfoFormat(
+                        "[SCENE]: Region {0} authenticated and authorized incoming {1} agent {2} {3} {4} (circuit code {5})",
+                        RegionInfo.RegionName, (agent.child ? "child" : "root"), agent.firstname, agent.lastname,
+                        agent.AgentID, agent.circuitcode);
+    
                     if (CapsModule != null)
+                    {
                         CapsModule.SetAgentCapsSeeds(agent);
+                        CapsModule.CreateCaps(agent.AgentID);
+                    }
+                }
+                else
+                {
+                    // Let the SP know how we got here. This has a lot of interesting
+                    // uses down the line.
+                    sp.TeleportFlags = (TPFlags)teleportFlags;
+    
+                    if (sp.IsChildAgent)
+                    {
+                        m_log.DebugFormat(
+                            "[SCENE]: Adjusting known seeds for existing agent {0} in {1}",
+                            agent.AgentID, RegionInfo.RegionName);
+    
+                        sp.AdjustKnownSeeds();
+                        
+                        if (CapsModule != null)
+                            CapsModule.SetAgentCapsSeeds(agent);
+                    }
                 }
             }
 
@@ -4047,8 +4144,9 @@ namespace OpenSim.Region.Framework.Scenes
                 return false;
             }
 
-            // We have to wait until the viewer contacts this region after receiving EAC.
-            // That calls AddNewClient, which finally creates the ScenePresence
+            // We have to wait until the viewer contacts this region
+            // after receiving the EnableSimulator HTTP Event Queue message.  This triggers the viewer to send
+            // a UseCircuitCode packet which in turn calls AddNewClient which finally creates the ScenePresence.
             ScenePresence childAgentUpdate = WaitGetScenePresence(cAgentData.AgentID);
 
             if (childAgentUpdate != null)
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index 45bbbda..1fa6a75 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -3432,6 +3432,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <remarks>
         /// When the physics engine has finished with it, the sculpt data is discarded to save memory.
         /// </remarks>
+/*        
         public void CheckSculptAndLoad()
         {
             if (IsDeleted)
@@ -3447,7 +3448,7 @@ namespace OpenSim.Region.Framework.Scenes
             for (int i = 0; i < parts.Length; i++)
                 parts[i].CheckSculptAndLoad();
         }
-
+*/
         /// <summary>
         /// Set the user group to which this scene object belongs.
         /// </summary>
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 199526e..27ef4c9 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -1014,9 +1014,9 @@ namespace OpenSim.Region.Framework.Scenes
                             {
                                 actor.Size = m_shape.Scale;
 
-                                if (Shape.SculptEntry)
-                                    CheckSculptAndLoad();
-                                else
+//                                if (Shape.SculptEntry)
+//                                    CheckSculptAndLoad();
+//                                else
                                     ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(actor);
                             }
                         }
@@ -1620,12 +1620,13 @@ namespace OpenSim.Region.Framework.Scenes
 
             if (userExposed)
             {
+/*
                 if (dupe.m_shape.SculptEntry && dupe.m_shape.SculptTexture != UUID.Zero)
                 {
                     ParentGroup.Scene.AssetService.Get(
                         dupe.m_shape.SculptTexture.ToString(), dupe, dupe.AssetReceived);
                 }
-                
+*/                
                 bool UsePhysics = ((dupe.Flags & PrimFlags.Physics) != 0);
                 dupe.DoPhysicsPropertyUpdate(UsePhysics, true);
             }
@@ -1643,6 +1644,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <param name="id">ID of asset received</param>
         /// <param name="sender">Register</param>
         /// <param name="asset"></param>
+/*        
         protected void AssetReceived(string id, Object sender, AssetBase asset)
         {
             if (asset != null)
@@ -1652,7 +1654,7 @@ namespace OpenSim.Region.Framework.Scenes
                     "[SCENE OBJECT PART]: Part {0} {1} requested mesh/sculpt data for asset id {2} from asset service but received no data",
                     Name, UUID, id);
         }
-
+*/
         /// <summary>
         /// Do a physics property update for a NINJA joint.
         /// </summary>
@@ -1833,9 +1835,9 @@ namespace OpenSim.Region.Framework.Scenes
 
                     // If this part is a sculpt then delay the physics update until we've asynchronously loaded the
                     // mesh data.
-                    if (Shape.SculptEntry)
-                        CheckSculptAndLoad();
-                    else
+//                    if (Shape.SculptEntry)
+//                        CheckSculptAndLoad();
+//                    else
                         ParentGroup.Scene.PhysicsScene.AddPhysicsActorTaint(pa);
                 }
             }
@@ -2511,6 +2513,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// Set sculpt and mesh data, and tell the physics engine to process the change.
         /// </summary>
         /// <param name="texture">The mesh itself.</param>
+/*        
         public void SculptTextureCallback(AssetBase texture)
         {
             if (m_shape.SculptEntry)
@@ -2538,7 +2541,7 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
         }
-
+*/
         /// <summary>
         /// Send a full update to the client for the given part
         /// </summary>
@@ -3783,7 +3786,7 @@ namespace OpenSim.Region.Framework.Scenes
         public void UpdateExtraParam(ushort type, bool inUse, byte[] data)
         {
             m_shape.ReadInUpdateExtraParam(type, inUse, data);
-
+/*
             if (type == 0x30)
             {
                 if (m_shape.SculptEntry && m_shape.SculptTexture != UUID.Zero)
@@ -3791,7 +3794,7 @@ namespace OpenSim.Region.Framework.Scenes
                     ParentGroup.Scene.AssetService.Get(m_shape.SculptTexture.ToString(), this, AssetReceived);
                 }
             }
-
+*/
             if (ParentGroup != null)
             {
                 ParentGroup.HasGroupChanged = true;
@@ -4025,14 +4028,6 @@ namespace OpenSim.Region.Framework.Scenes
                 if (!wasUsingPhysics)
                 {
                     DoPhysicsPropertyUpdate(UsePhysics, false);
-
-                    if (!ParentGroup.IsDeleted)
-                    {
-                        if (LocalId == ParentGroup.RootPart.LocalId)
-                        {
-                            ParentGroup.CheckSculptAndLoad();
-                        }
-                    }
                 }
             }
             else
@@ -4072,14 +4067,6 @@ namespace OpenSim.Region.Framework.Scenes
                         pa.SetMaterial(Material);
                         DoPhysicsPropertyUpdate(UsePhysics, true);
     
-                        if (!ParentGroup.IsDeleted)
-                        {
-                            if (LocalId == ParentGroup.RootPart.LocalId)
-                            {
-                                ParentGroup.CheckSculptAndLoad();
-                            }
-                        }
-    
                         if (
                             ((AggregateScriptEvents & scriptEvents.collision) != 0) ||
                             ((AggregateScriptEvents & scriptEvents.collision_end) != 0) ||
@@ -4104,14 +4091,6 @@ namespace OpenSim.Region.Framework.Scenes
                 else // it already has a physical representation
                 {
                     DoPhysicsPropertyUpdate(UsePhysics, false); // Update physical status. If it's phantom this will remove the prim
-
-                    if (!ParentGroup.IsDeleted)
-                    {
-                        if (LocalId == ParentGroup.RootPart.LocalId)
-                        {
-                            ParentGroup.CheckSculptAndLoad();
-                        }
-                    }
                 }
             }
 
@@ -4341,6 +4320,7 @@ namespace OpenSim.Region.Framework.Scenes
         /// <remarks>
         /// When the physics engine has finished with it, the sculpt data is discarded to save memory.
         /// </remarks>
+/*
         public void CheckSculptAndLoad()
         {
 //            m_log.DebugFormat("Processing CheckSculptAndLoad for {0} {1}", Name, LocalId);
@@ -4366,7 +4346,7 @@ namespace OpenSim.Region.Framework.Scenes
                 }
             }
         }
-
+*/
         /// <summary>
         /// Update the texture entry for this part.
         /// </summary>
@@ -4604,6 +4584,7 @@ namespace OpenSim.Region.Framework.Scenes
                     }
 
                     Quaternion rot = Quaternion.Slerp(RotationOffset,APIDTarget,1.0f/(float)m_APIDIterations);
+                    rot.Normalize();
                     UpdateRotation(rot);
 
                     m_APIDIterations--;
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 821fd81..bdb0446 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -92,6 +92,15 @@ namespace OpenSim.Region.Framework.Scenes
                 QueryScriptStates();
             }
         }
+
+        public int Count
+        {
+            get
+            {
+                lock (m_items)
+                    return m_items.Count;
+            }
+        }
         
         /// <summary>
         /// Constructor
diff --git a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
index 28cd09f..e238d01 100644
--- a/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
+++ b/OpenSim/Region/Framework/Scenes/UuidGatherer.cs
@@ -66,9 +66,9 @@ namespace OpenSim.Region.Framework.Scenes
 //        /// </summary>
 //        private bool m_waitingForObjectAsset;
                 
-        public UuidGatherer(IAssetService assetCache)
+        public UuidGatherer(IAssetService assetService)
         {
-            m_assetService = assetCache;
+            m_assetService = assetService;
         }
                 
         /// <summary>
diff --git a/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs b/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
index d68aabc..68bcb4a 100644
--- a/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/Attachments/AttachmentsCommandModule.cs
@@ -146,7 +146,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.Attachments
             sb.AppendFormat("Attachments for {0}\n", sp.Name);
 
             ConsoleDisplayTable ct = new ConsoleDisplayTable() { Indent = 2 };
-            ct.Columns.Add(new ConsoleDisplayTableColumn("Attachment Name", 36));
+            ct.Columns.Add(new ConsoleDisplayTableColumn("Attachment Name", 50));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Local ID", 10));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Item ID", 36));
             ct.Columns.Add(new ConsoleDisplayTableColumn("Attach Point", 14));
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
index 10b83e6..1528330 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsMessagingModule.cs
@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Reflection;
 using log4net;
 using Mono.Addins;
@@ -36,6 +37,8 @@ using OpenMetaverse.StructuredData;
 using OpenSim.Framework;
 using OpenSim.Region.Framework.Interfaces;
 using OpenSim.Region.Framework.Scenes;
+using OpenSim.Services.Interfaces;
+using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
 
 namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
 {
@@ -45,6 +48,7 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
         private List<Scene> m_sceneList = new List<Scene>();
+        private IPresenceService m_presenceService;
 
         private IMessageTransferModule m_msgTransferModule = null;
 
@@ -54,6 +58,27 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         private bool m_groupMessagingEnabled = false;
         private bool m_debugEnabled = true;
 
+        /// <summary>
+        /// If enabled, module only tries to send group IMs to online users by querying cached presence information.
+        /// </summary>
+        private bool m_messageOnlineAgentsOnly;
+
+        /// <summary>
+        /// Cache for online users.
+        /// </summary>
+        /// <remarks>
+        /// Group ID is key, presence information for online members is value.
+        /// Will only be non-null if m_messageOnlineAgentsOnly = true
+        /// We cache here so that group messages don't constantly have to re-request the online user list to avoid
+        /// attempted expensive sending of messages to offline users.
+        /// The tradeoff is that a user that comes online will not receive messages consistently from all other users
+        /// until caches have updated.
+        /// Therefore, we set the cache expiry to just 20 seconds.
+        /// </remarks>
+        private ExpiringCache<UUID, PresenceInfo[]> m_usersOnlineCache;
+
+        private int m_usersOnlineCacheExpirySeconds = 20;
+
         #region IRegionModuleBase Members
 
         public void Initialise(IConfigSource config)
@@ -83,10 +108,17 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                     return;
                 }
 
+                m_messageOnlineAgentsOnly = groupsConfig.GetBoolean("MessageOnlineUsersOnly", false);
+
+                if (m_messageOnlineAgentsOnly)
+                     m_usersOnlineCache = new ExpiringCache<UUID, PresenceInfo[]>();
+
                 m_debugEnabled = groupsConfig.GetBoolean("DebugEnabled", true);
             }
 
-            m_log.Info("[GROUPS-MESSAGING]: GroupsMessagingModule starting up");
+            m_log.InfoFormat(
+                "[GROUPS-MESSAGING]: GroupsMessagingModule enabled with MessageOnlineOnly = {0}, DebugEnabled = {1}",
+                m_messageOnlineAgentsOnly, m_debugEnabled);
         }
 
         public void AddRegion(Scene scene)
@@ -126,6 +158,8 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                 return;
             }
 
+            if (m_presenceService == null)
+                m_presenceService = scene.PresenceService;
 
             m_sceneList.Add(scene);
 
@@ -207,12 +241,42 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         public void SendMessageToGroup(GridInstantMessage im, UUID groupID)
         {
             List<GroupMembersData> groupMembers = m_groupData.GetGroupMembers(new UUID(im.fromAgentID), groupID);
-            
-            if (m_debugEnabled) 
-                m_log.DebugFormat(
-                    "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members", 
-                    groupID, groupMembers.Count);
-            
+            int groupMembersCount = groupMembers.Count;
+
+            if (m_messageOnlineAgentsOnly)
+            {
+                string[] t1 = groupMembers.ConvertAll<string>(gmd => gmd.AgentID.ToString()).ToArray();
+
+                // We cache in order not to overwhlem the presence service on large grids with many groups.  This does
+                // mean that members coming online will not see all group members until after m_usersOnlineCacheExpirySeconds has elapsed.
+                // (assuming this is the same across all grid simulators).
+                PresenceInfo[] onlineAgents;
+                if (!m_usersOnlineCache.TryGetValue(groupID, out onlineAgents))
+                {
+                    onlineAgents = m_presenceService.GetAgents(t1);
+                    m_usersOnlineCache.Add(groupID, onlineAgents, m_usersOnlineCacheExpirySeconds);
+                }
+
+                HashSet<string> onlineAgentsUuidSet = new HashSet<string>();
+                Array.ForEach<PresenceInfo>(onlineAgents, pi => onlineAgentsUuidSet.Add(pi.UserID));
+
+                groupMembers = groupMembers.Where(gmd => onlineAgentsUuidSet.Contains(gmd.AgentID.ToString())).ToList();
+
+    //            if (m_debugEnabled)
+//                    m_log.DebugFormat(
+//                        "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members, {2} online",
+//                        groupID, groupMembersCount, groupMembers.Count());
+            }
+            else
+            {
+                if (m_debugEnabled)
+                    m_log.DebugFormat(
+                        "[GROUPS-MESSAGING]: SendMessageToGroup called for group {0} with {1} visible members",
+                        groupID, groupMembers.Count);
+            }
+
+            int requestStartTick = Environment.TickCount;
+
             foreach (GroupMembersData member in groupMembers)
             {
                 if (m_groupData.hasAgentDroppedGroupChatSession(member.AgentID, groupID))
@@ -254,6 +318,12 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
                     ProcessMessageFromGroupSession(msg);
                 }
             }
+
+            // Temporary for assessing how long it still takes to send messages to large online groups.
+            if (m_messageOnlineAgentsOnly)
+                m_log.DebugFormat(
+                    "[GROUPS-MESSAGING]: SendMessageToGroup for group {0} with {1} visible members, {2} online took {3}ms",
+                    groupID, groupMembersCount, groupMembers.Count(), Environment.TickCount - requestStartTick);
         }
         
         #region SimGridEventHandlers
diff --git a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
index e669f4c..b9b4413 100644
--- a/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
+++ b/OpenSim/Region/OptionalModules/Avatar/XmlRpcGroups/GroupsModule.cs
@@ -123,7 +123,36 @@ namespace OpenSim.Region.OptionalModules.Avatar.XmlRpcGroups
         public void AddRegion(Scene scene)
         {
             if (m_groupsEnabled)
+            {
                 scene.RegisterModuleInterface<IGroupsModule>(this);
+                scene.AddCommand(
+                    "debug",
+                    this,
+                    "debug groups verbose",
+                    "debug groups verbose <true|false>",
+                    "This setting turns on very verbose groups debugging",
+                    HandleDebugGroupsVerbose);
+            }
+        }
+
+        private void HandleDebugGroupsVerbose(object modules, string[] args)
+        {
+            if (args.Length < 4)
+            {
+                MainConsole.Instance.Output("Usage: debug groups verbose <true|false>");
+                return;
+            }
+
+            bool verbose = false;
+            if (!bool.TryParse(args[3], out verbose))
+            {
+                MainConsole.Instance.Output("Usage: debug groups verbose <true|false>");
+                return;
+            }
+
+            m_debugEnabled = verbose;
+
+            MainConsole.Instance.OutputFormat("{0} verbose logging set to {1}", Name, m_debugEnabled);
         }
 
         public void RegionLoaded(Scene scene)
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
index 2a52e01..623ac8f 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSCharacter.cs
@@ -41,8 +41,6 @@ public class BSCharacter : BSPhysObject
 
     // private bool _stopped;
     private OMV.Vector3 _size;
-    private OMV.Vector3 _scale;
-    private PrimitiveBaseShape _pbs;
     private bool _grabbed;
     private bool _selected;
     private OMV.Vector3 _position;
@@ -67,6 +65,10 @@ public class BSCharacter : BSPhysObject
     private bool _kinematic;
     private float _buoyancy;
 
+    // The friction and velocity of the avatar is modified depending on whether walking or not.
+    private OMV.Vector3 _appliedVelocity;   // the last velocity applied to the avatar
+    private float _currentFriction;         // the friction currently being used (changed by setVelocity).
+
     private OMV.Vector3 _PIDTarget;
     private bool _usePID;
     private float _PIDTau;
@@ -84,14 +86,18 @@ public class BSCharacter : BSPhysObject
         _flying = isFlying;
         _orientation = OMV.Quaternion.Identity;
         _velocity = OMV.Vector3.Zero;
+        _appliedVelocity = OMV.Vector3.Zero;
         _buoyancy = ComputeBuoyancyFromFlying(isFlying);
+        _currentFriction = PhysicsScene.Params.avatarStandingFriction;
+        _avatarDensity = PhysicsScene.Params.avatarDensity;
 
         // The dimensions of the avatar capsule are kept in the scale.
         // Physics creates a unit capsule which is scaled by the physics engine.
         ComputeAvatarScale(_size);
-        _avatarDensity = PhysicsScene.Params.avatarDensity;
-        // set _avatarVolume and _mass based on capsule size, _density and _scale
+        // set _avatarVolume and _mass based on capsule size, _density and Scale
         ComputeAvatarVolumeAndMass();
+        DetailLog("{0},BSCharacter.create,call,size={1},scale={2},density={3},volume={4},mass={5}",
+                            LocalID, _size, Scale, _avatarDensity, _avatarVolume, MassRaw);
 
         ShapeData shapeData = new ShapeData();
         shapeData.ID = LocalID;
@@ -99,28 +105,22 @@ public class BSCharacter : BSPhysObject
         shapeData.Position = _position;
         shapeData.Rotation = _orientation;
         shapeData.Velocity = _velocity;
-        shapeData.Scale = _scale;
+        shapeData.Size = Scale;
+        shapeData.Scale = Scale;
         shapeData.Mass = _mass;
         shapeData.Buoyancy = _buoyancy;
         shapeData.Static = ShapeData.numericFalse;
-        shapeData.Friction = PhysicsScene.Params.avatarFriction;
+        shapeData.Friction = PhysicsScene.Params.avatarStandingFriction;
         shapeData.Restitution = PhysicsScene.Params.avatarRestitution;
 
         // do actual create at taint time
         PhysicsScene.TaintedObject("BSCharacter.create", delegate()
         {
             DetailLog("{0},BSCharacter.create,taint", LocalID);
-            BulletSimAPI.CreateObject(PhysicsScene.WorldID, shapeData);
-
-            // Set the buoyancy for flying. This will be refactored when all the settings happen in C#.
-            // If not set at creation, the avatar will stop flying when created after crossing a region boundry.
-            BulletSimAPI.SetObjectBuoyancy(PhysicsScene.WorldID, LocalID, _buoyancy);
+            // New body and shape into BSBody and BSShape
+            PhysicsScene.Shapes.GetBodyAndShape(true, PhysicsScene.World, this, shapeData, null, null, null);
 
-            BSBody = new BulletBody(LocalID, BulletSimAPI.GetBodyHandle2(PhysicsScene.World.ptr, LocalID));
-
-            // This works here because CreateObject has already put the character into the physical world.
-            BulletSimAPI.SetCollisionFilterMask2(BSBody.ptr,
-                            (uint)CollisionFilterGroups.AvatarFilter, (uint)CollisionFilterGroups.AvatarMask);
+            SetPhysicalProperties();
         });
         return;
     }
@@ -131,53 +131,85 @@ public class BSCharacter : BSPhysObject
         DetailLog("{0},BSCharacter.Destroy", LocalID);
         PhysicsScene.TaintedObject("BSCharacter.destroy", delegate()
         {
-            BulletSimAPI.DestroyObject(PhysicsScene.WorldID, LocalID);
+            PhysicsScene.Shapes.DereferenceBody(BSBody, true, null);
+            PhysicsScene.Shapes.DereferenceShape(BSShape, true, null);
         });
     }
 
+    private void SetPhysicalProperties()
+    {
+        BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, BSBody.ptr);
+
+        ZeroMotion();
+        ForcePosition = _position;
+        // Set the velocity and compute the proper friction
+        ForceVelocity = _velocity;
+        BulletSimAPI.SetRestitution2(BSBody.ptr, PhysicsScene.Params.avatarRestitution);
+        BulletSimAPI.SetLocalScaling2(BSShape.ptr, Scale);
+        BulletSimAPI.SetContactProcessingThreshold2(BSBody.ptr, PhysicsScene.Params.contactProcessingThreshold);
+        if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+        {
+            BulletSimAPI.SetCcdMotionThreshold2(BSBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+            BulletSimAPI.SetCcdSweepSphereRadius2(BSBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+        }
+
+        OMV.Vector3 localInertia = BulletSimAPI.CalculateLocalInertia2(BSShape.ptr, MassRaw);
+        BulletSimAPI.SetMassProps2(BSBody.ptr, MassRaw, localInertia);
+
+        BulletSimAPI.AddToCollisionFlags2(BSBody.ptr, CollisionFlags.CF_CHARACTER_OBJECT);
+
+        BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, BSBody.ptr);
+
+        BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
+        BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, BSBody.ptr);
+
+        // Do this after the object has been added to the world
+        BulletSimAPI.SetCollisionFilterMask2(BSBody.ptr,
+                        (uint)CollisionFilterGroups.AvatarFilter, 
+                        (uint)CollisionFilterGroups.AvatarMask);
+    }
+
     public override void RequestPhysicsterseUpdate()
     {
         base.RequestPhysicsterseUpdate();
     }
     // No one calls this method so I don't know what it could possibly mean
-    public override bool Stopped {
-        get { return false; }
-    }
+    public override bool Stopped { get { return false; } }
     public override OMV.Vector3 Size {
         get
         {
             // Avatar capsule size is kept in the scale parameter.
-            return new OMV.Vector3(_scale.X * 2, _scale.Y * 2, _scale.Z);
+            return _size;
         }
 
         set {
-            // When an avatar's size is set, only the height is changed
-            //    and that really only depends on the radius.
+            // When an avatar's size is set, only the height is changed.
             _size = value;
             ComputeAvatarScale(_size);
-
-            // TODO: something has to be done with the avatar's vertical position
-
             ComputeAvatarVolumeAndMass();
+            DetailLog("{0},BSCharacter.setSize,call,scale={1},density={2},volume={3},mass={4}",
+                            LocalID, Scale, _avatarDensity, _avatarVolume, MassRaw);
 
             PhysicsScene.TaintedObject("BSCharacter.setSize", delegate()
             {
-                BulletSimAPI.SetObjectScaleMass(PhysicsScene.WorldID, LocalID, _scale, _mass, true);
+                BulletSimAPI.SetLocalScaling2(BSShape.ptr, Scale);
+                OMV.Vector3 localInertia = BulletSimAPI.CalculateLocalInertia2(BSShape.ptr, MassRaw);
+                BulletSimAPI.SetMassProps2(BSBody.ptr, MassRaw, localInertia);
             });
 
         }
     }
-    public override PrimitiveBaseShape Shape {
-        set { _pbs = value;
-        }
+    public override OMV.Vector3 Scale { get; set; }
+    public override PrimitiveBaseShape Shape
+    {
+        set { BaseShape = value; }
     }
+
     public override bool Grabbed {
-        set { _grabbed = value;
-        }
+        set { _grabbed = value; }
     }
     public override bool Selected {
-        set { _selected = value;
-        }
+        set { _selected = value; }
     }
     public override void CrossingFailure() { return; }
     public override void link(PhysicsActor obj) { return; }
@@ -204,7 +236,7 @@ public class BSCharacter : BSPhysObject
 
     public override OMV.Vector3 Position {
         get {
-            // _position = BulletSimAPI.GetObjectPosition(Scene.WorldID, _localID);
+            // _position = BulletSimAPI.GetObjectPosition2(Scene.World.ptr, LocalID);
             return _position;
         }
         set {
@@ -214,7 +246,7 @@ public class BSCharacter : BSPhysObject
             PhysicsScene.TaintedObject("BSCharacter.setPosition", delegate()
             {
                 DetailLog("{0},BSCharacter.SetPosition,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(PhysicsScene.WorldID, LocalID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(BSBody.ptr, _position, _orientation);
             });
         }
     }
@@ -263,7 +295,7 @@ public class BSCharacter : BSPhysObject
     // A version of the sanity check that also makes sure a new position value is
     //    pushed back to the physics engine. This routine would be used by anyone
     //    who is not already pushing the value.
-    private bool PositionSanityCheck2(bool atTaintTime)
+    private bool PositionSanityCheck(bool inTaintTime)
     {
         bool ret = false;
         if (PositionSanityCheck())
@@ -273,9 +305,9 @@ public class BSCharacter : BSPhysObject
             BSScene.TaintCallback sanityOperation = delegate()
             {
                 DetailLog("{0},BSCharacter.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(PhysicsScene.WorldID, LocalID, _position, _orientation);
+                BulletSimAPI.SetTranslation2(BSBody.ptr, _position, _orientation);
             };
-            if (atTaintTime)
+            if (inTaintTime)
                 sanityOperation();
             else
                 PhysicsScene.TaintedObject("BSCharacter.PositionSanityCheck", sanityOperation);
@@ -284,11 +316,7 @@ public class BSCharacter : BSPhysObject
         return ret;
     }
 
-    public override float Mass {
-        get {
-            return _mass;
-        }
-    }
+    public override float Mass { get { return _mass; } }
 
     // used when we only want this prim's mass and not the linkset thing
     public override float MassRaw { get {return _mass; } }
@@ -301,15 +329,13 @@ public class BSCharacter : BSPhysObject
             PhysicsScene.TaintedObject("BSCharacter.SetForce", delegate()
             {
                 DetailLog("{0},BSCharacter.setForce,taint,force={1}", LocalID, _force);
-                BulletSimAPI.SetObjectForce(PhysicsScene.WorldID, LocalID, _force);
+                BulletSimAPI.SetObjectForce2(BSBody.ptr, _force);
             });
         }
     }
 
-    public override int VehicleType {
-        get { return 0; }
-        set { return; }
-    }
+    // Avatars don't do vehicles
+    public override int VehicleType { get { return 0; } set { return; } }
     public override void VehicleFloatParam(int param, float value) { }
     public override void VehicleVectorParam(int param, OMV.Vector3 value) {}
     public override void VehicleRotationParam(int param, OMV.Quaternion rotation) { }
@@ -328,10 +354,39 @@ public class BSCharacter : BSPhysObject
             PhysicsScene.TaintedObject("BSCharacter.setVelocity", delegate()
             {
                 DetailLog("{0},BSCharacter.setVelocity,taint,vel={1}", LocalID, _velocity);
-                BulletSimAPI.SetObjectVelocity(PhysicsScene.WorldID, LocalID, _velocity);
+                ForceVelocity = _velocity;
             });
         }
     }
+    public override OMV.Vector3 ForceVelocity {
+        get { return _velocity; }
+        set {
+            // Depending on whether the avatar is moving or not, change the friction
+            //    to keep the avatar from slipping around
+            if (_velocity.Length() == 0)
+            {
+                if (_currentFriction != PhysicsScene.Params.avatarStandingFriction)
+                {
+                    _currentFriction = PhysicsScene.Params.avatarStandingFriction;
+                    BulletSimAPI.SetFriction2(BSBody.ptr, _currentFriction);
+                }
+            }
+            else
+            {
+                if (_currentFriction != PhysicsScene.Params.avatarFriction)
+                {
+                    _currentFriction = PhysicsScene.Params.avatarFriction;
+                    BulletSimAPI.SetFriction2(BSBody.ptr, _currentFriction);
+                }
+            }
+            _velocity = value;
+            // Remember the set velocity so we can suppress the reduction by friction, ...
+            _appliedVelocity = value;
+
+            BulletSimAPI.SetLinearVelocity2(BSBody.ptr, _velocity);
+            BulletSimAPI.Activate2(BSBody.ptr, true);
+        }
+    }
     public override OMV.Vector3 Torque {
         get { return _torque; }
         set { _torque = value;
@@ -353,8 +408,8 @@ public class BSCharacter : BSPhysObject
             // m_log.DebugFormat("{0}: set orientation to {1}", LogHeader, _orientation);
             PhysicsScene.TaintedObject("BSCharacter.setOrientation", delegate()
             {
-                // _position = BulletSimAPI.GetObjectPosition(Scene.WorldID, _localID);
-                BulletSimAPI.SetObjectTranslation(PhysicsScene.WorldID, LocalID, _position, _orientation);
+                // _position = BulletSimAPI.GetPosition2(BSBody.ptr);
+                BulletSimAPI.SetTranslation2(BSBody.ptr, _position, _orientation);
             });
         }
     }
@@ -382,12 +437,18 @@ public class BSCharacter : BSPhysObject
         set { _isPhysical = value;
         }
     }
+    public override bool IsSolid {
+        get { return true; }
+    }
+    public override bool IsStatic {
+        get { return false; }
+    }
     public override bool Flying {
         get { return _flying; }
         set {
             _flying = value;
             // simulate flying by changing the effect of gravity
-            this.Buoyancy = ComputeBuoyancyFromFlying(_flying);
+            Buoyancy = ComputeBuoyancyFromFlying(_flying);
         }
     }
     // Flying is implimented by changing the avatar's buoyancy.
@@ -432,6 +493,10 @@ public class BSCharacter : BSPhysObject
         get { return _rotationalVelocity; }
         set { _rotationalVelocity = value; }
     }
+    public override OMV.Vector3 ForceRotationalVelocity {
+        get { return _rotationalVelocity; }
+        set { _rotationalVelocity = value; }
+    }
     public override bool Kinematic {
         get { return _kinematic; }
         set { _kinematic = value; }
@@ -443,10 +508,19 @@ public class BSCharacter : BSPhysObject
             PhysicsScene.TaintedObject("BSCharacter.setBuoyancy", delegate()
             {
                 DetailLog("{0},BSCharacter.setBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
-                BulletSimAPI.SetObjectBuoyancy(PhysicsScene.WorldID, LocalID, _buoyancy);
+                ForceBuoyancy = _buoyancy;
             });
         }
     }
+    public override float ForceBuoyancy {
+        get { return _buoyancy; }
+        set { _buoyancy = value;
+            DetailLog("{0},BSCharacter.setForceBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
+            // Buoyancy is faked by changing the gravity applied to the object
+            float grav = PhysicsScene.Params.gravity * (1f - _buoyancy);
+            BulletSimAPI.SetGravity2(BSBody.ptr, new OMV.Vector3(0f, 0f, grav));
+        }
+    }
 
     // Used for MoveTo
     public override OMV.Vector3 PIDTarget {
@@ -507,27 +581,32 @@ public class BSCharacter : BSPhysObject
 
     private void ComputeAvatarScale(OMV.Vector3 size)
     {
-        _scale.X = PhysicsScene.Params.avatarCapsuleRadius;
-        _scale.Y = PhysicsScene.Params.avatarCapsuleRadius;
+        // The 'size' given by the simulator is the mid-point of the avatar
+        //    and X and Y are unspecified.
+
+        OMV.Vector3 newScale = OMV.Vector3.Zero;
+        newScale.X = PhysicsScene.Params.avatarCapsuleRadius;
+        newScale.Y = PhysicsScene.Params.avatarCapsuleRadius;
 
-        // The 1.15 came from ODE but it seems to cause the avatar to float off the ground
-        // _scale.Z = (_size.Z * 1.15f) - (_scale.X + _scale.Y);
-        _scale.Z = (_size.Z) - (_scale.X + _scale.Y);
+        // From the total height, remote the capsule half spheres that are at each end 
+        newScale.Z = (size.Z * 2f) - Math.Min(newScale.X, newScale.Y);
+        // newScale.Z = (size.Z * 2f);
+        Scale = newScale;
     }
 
-    // set _avatarVolume and _mass based on capsule size, _density and _scale
+    // set _avatarVolume and _mass based on capsule size, _density and Scale
     private void ComputeAvatarVolumeAndMass()
     {
         _avatarVolume = (float)(
                         Math.PI
-                        * _scale.X
-                        * _scale.Y  // the area of capsule cylinder
-                        * _scale.Z  // times height of capsule cylinder
+                        * Scale.X
+                        * Scale.Y    // the area of capsule cylinder
+                        * Scale.Z    // times height of capsule cylinder
                       + 1.33333333f
                         * Math.PI
-                        * _scale.X
-                        * Math.Min(_scale.X, _scale.Y)
-                        * _scale.Y  // plus the volume of the capsule end caps
+                        * Scale.X
+                        * Math.Min(Scale.X, Scale.Y)
+                        * Scale.Y    // plus the volume of the capsule end caps
                         );
         _mass = _avatarDensity * _avatarVolume;
     }
@@ -542,7 +621,23 @@ public class BSCharacter : BSPhysObject
         _acceleration = entprop.Acceleration;
         _rotationalVelocity = entprop.RotationalVelocity;
         // Do some sanity checking for the avatar. Make sure it's above ground and inbounds.
-        PositionSanityCheck2(true);
+        PositionSanityCheck(true);
+
+        // remember the current and last set values
+        LastEntityProperties = CurrentEntityProperties;
+        CurrentEntityProperties = entprop;
+
+        if (entprop.Velocity != LastEntityProperties.Velocity)
+        {
+            // Changes in the velocity are suppressed in avatars.
+            // That's just the way they are defined.
+            OMV.Vector3 avVel = new OMV.Vector3(_appliedVelocity.X, _appliedVelocity.Y, entprop.Velocity.Z);
+            _velocity = avVel;
+            BulletSimAPI.SetLinearVelocity2(BSBody.ptr, avVel);
+        }
+
+        // Tell the linkset about this
+        Linkset.UpdateProperties(this);
 
         // Avatars don't report their changes the usual way. Changes are checked for in the heartbeat loop.
         // base.RequestPhysicsterseUpdate();
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
index 63a4127..a20be3a 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSConstraint.cs
@@ -49,9 +49,16 @@ public abstract class BSConstraint : IDisposable
         if (m_enabled)
         {
             m_enabled = false;
-            bool success = BulletSimAPI.DestroyConstraint2(m_world.ptr, m_constraint.ptr);
-            m_world.physicsScene.DetailLog("{0},BSConstraint.Dispose,taint,body1={1},body2={2},success={3}", BSScene.DetailLogZero, m_body1.ID, m_body2.ID, success);
-            m_constraint.ptr = System.IntPtr.Zero;
+            if (m_constraint.ptr != IntPtr.Zero)
+            {
+                bool success = BulletSimAPI.DestroyConstraint2(m_world.ptr, m_constraint.ptr);
+                m_world.physicsScene.DetailLog("{0},BSConstraint.Dispose,taint,id1={1},body1={2},id2={3},body2={4},success={5}",
+                                    BSScene.DetailLogZero, 
+                                    m_body1.ID, m_body1.ptr.ToString("X"),
+                                    m_body2.ID, m_body2.ptr.ToString("X"),
+                                    success);
+                m_constraint.ptr = System.IntPtr.Zero;
+            }
         }
     }
 
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
index 4ba2f62..56342b8 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSDynamics.cs
@@ -462,7 +462,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                 return;
 
             // Set the prim's inertia to zero. The vehicle code handles that and this
-            //    removes the torque action introduced by Bullet.
+            //    removes the motion and torque actions introduced by Bullet.
             Vector3 inertia = Vector3.Zero;
             BulletSimAPI.SetMassProps2(Prim.BSBody.ptr, Prim.MassRaw, inertia);
             BulletSimAPI.UpdateInertiaTensor2(Prim.BSBody.ptr);
@@ -481,7 +481,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
             m_lastPositionVector = Prim.ForcePosition;
 
             VDetailLog("{0},BSDynamics.Step,done,pos={1},force={2},velocity={3},angvel={4}",
-                    Prim.LocalID, Prim.Position, Prim.Force, Prim.Velocity, Prim.RotationalVelocity);
+                    Prim.LocalID, Prim.ForcePosition, Prim.Force, Prim.ForceVelocity, Prim.RotationalVelocity);
         }// end Step
 
         // Apply the effect of the linear motor.
@@ -540,7 +540,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
             // add Gravity and Buoyancy
             // There is some gravity, make a gravity force vector that is applied after object velocity.
             // m_VehicleBuoyancy: -1=2g; 0=1g; 1=0g;
-            Vector3 grav = Prim.PhysicsScene.DefaultGravity * (Prim.Mass * (1f - m_VehicleBuoyancy));
+            Vector3 grav = Prim.PhysicsScene.DefaultGravity * (Prim.Linkset.LinksetMass * (1f - m_VehicleBuoyancy));
 
             /*
              * RA: Not sure why one would do this
@@ -678,10 +678,10 @@ namespace OpenSim.Region.Physics.BulletSPlugin
                 m_newVelocity.Z = 0;
 
             // Apply velocity
-            Prim.Velocity = m_newVelocity;
+            Prim.ForceVelocity = m_newVelocity;
             // apply gravity force
             // Why is this set here? The physics engine already does gravity.
-            // m_prim.AddForce(grav, false);
+            Prim.AddForce(grav, false, true);
 
             // Apply friction
             Vector3 keepFraction = Vector3.One - (Vector3.One / (m_linearFrictionTimescale / pTimestep));
@@ -704,7 +704,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
             // m_lastAngularVelocity           // what was last applied to body
 
             // Get what the body is doing, this includes 'external' influences
-            Vector3 angularVelocity = Prim.RotationalVelocity;
+            Vector3 angularVelocity = Prim.ForceRotationalVelocity;
 
             if (m_angularMotorApply > 0)
             {
@@ -810,7 +810,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
             m_lastAngularVelocity -= m_lastAngularVelocity * decayamount;
 
             // Apply to the body
-            Prim.RotationalVelocity = m_lastAngularVelocity;
+            Prim.ForceRotationalVelocity = m_lastAngularVelocity;
 
             VDetailLog("{0},MoveAngular,done,decay={1},lastAngular={2}", Prim.LocalID, decayamount, m_lastAngularVelocity);
         } //end MoveAngular
@@ -862,7 +862,7 @@ namespace OpenSim.Region.Physics.BulletSPlugin
         private void VDetailLog(string msg, params Object[] args)
         {
             if (Prim.PhysicsScene.VehicleLoggingEnabled)
-                Prim.PhysicsScene.PhysicsLogging.Write(msg, args);
+                Prim.PhysicsScene.DetailLog(msg, args);
         }
     }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
index 3e82642..43b1262 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSLinkset.cs
@@ -52,8 +52,8 @@ public class BSLinkset
     //    the physical 'taint' children separately.
     // After taint processing and before the simulation step, these
     //    two lists must be the same.
-    private List<BSPhysObject> m_children;
-    private List<BSPhysObject> m_taintChildren;
+    private HashSet<BSPhysObject> m_children;
+    private HashSet<BSPhysObject> m_taintChildren;
 
     // We lock the diddling of linkset classes to prevent any badness.
     // This locks the modification of the instances of this class. Changes
@@ -90,8 +90,8 @@ public class BSLinkset
             m_nextLinksetID = 1;
         PhysicsScene = scene;
         LinksetRoot = parent;
-        m_children = new List<BSPhysObject>();
-        m_taintChildren = new List<BSPhysObject>();
+        m_children = new HashSet<BSPhysObject>();
+        m_taintChildren = new HashSet<BSPhysObject>();
         m_mass = parent.MassRaw;
     }
 
@@ -160,6 +160,28 @@ public class BSLinkset
         return ret;
     }
 
+    // When physical properties are changed the linkset needs to recalculate
+    //   its internal properties.
+    // May be called at runtime or taint-time (just pass the appropriate flag).
+    public void Refresh(BSPhysObject requestor, bool inTaintTime)
+    {
+        // If there are no children, not physical or not root, I am not the one that recomputes the constraints
+        // (For the moment, static linksets do create constraints so remove the test for physical.)
+        if (!HasAnyChildren || /*!requestor.IsPhysical ||*/ !IsRoot(requestor))
+            return;
+
+        BSScene.TaintCallback refreshOperation = delegate()
+            {
+                RecomputeLinksetConstraintVariables();
+                DetailLog("{0},BSLinkset.Refresh,complete,rBody={1}", 
+                                LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
+            };
+        if (inTaintTime)
+            refreshOperation();
+        else
+            PhysicsScene.TaintedObject("BSLinkSet.Refresh", refreshOperation);
+    }
+
     // The object is going dynamic (physical). Do any setup necessary
     //     for a dynamic linkset.
     // Only the state of the passed object can be modified. The rest of the linkset
@@ -182,22 +204,19 @@ public class BSLinkset
         return false;
     }
 
-    // When physical properties are changed the linkset needs to recalculate
-    //   its internal properties.
-    // Called at runtime.
-    public void Refresh(BSPhysObject requestor)
+    // If the software is handling the movement of all the objects in a linkset
+    // (like if one doesn't use constraints for static linksets), this is called
+    // when an update for the root of the linkset is received.
+    // Called at taint-time!!
+    public void UpdateProperties(BSPhysObject physObject)
     {
-        // If there are no children, there can't be any constraints to recompute
-        if (!HasAnyChildren)
-            return;
-
-        // Only the root does the recomputation
-        if (IsRoot(requestor))
+        // The root local properties have been updated. Apply to the children if appropriate.
+        if (IsRoot(physObject) && HasAnyChildren)
         {
-            PhysicsScene.TaintedObject("BSLinkSet.Refresh", delegate()
+            if (!physObject.IsPhysical)
             {
-                RecomputeLinksetConstraintVariables();
-            });
+                // TODO: implement software linkset update for static object linksets
+            }
         }
     }
 
@@ -215,13 +234,10 @@ public class BSLinkset
             if (IsRoot(child))
             {
                 // If the one with the dependency is root, must undo all children
-                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeChildrenForRoot,rID={1},numChild={2}",
-                                                child.LocalID, LinksetRoot.LocalID, m_taintChildren.Count);
-                foreach (BSPhysObject bpo in m_taintChildren)
-                {
-                    PhysicallyUnlinkAChildFromRoot(LinksetRoot, LinksetRoot.BSBody, bpo, bpo.BSBody);
-                    ret = true;
-                }
+                DetailLog("{0},BSLinkset.RemoveBodyDependencies,removeChildrenForRoot,rID={1},rBody={2}",
+                                                child.LocalID, LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"));
+
+                ret = PhysicallyUnlinkAllChildrenFromRoot(LinksetRoot);
             }
             else
             {
@@ -229,20 +245,16 @@ public class BSLinkset
                                                 child.LocalID,
                                                 LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
                                                 child.LocalID, child.BSBody.ptr.ToString("X"));
-                // Remove the dependency on the body of this one 
-                if (m_taintChildren.Contains(child))
-                {
-                    PhysicallyUnlinkAChildFromRoot(LinksetRoot, LinksetRoot.BSBody, child, child.BSBody);
-                    ret = true;
-                }
+                // ret = PhysicallyUnlinkAChildFromRoot(LinksetRoot, child);
+                // Despite the function name, this removes any link to the specified object.
+                ret = PhysicallyUnlinkAllChildrenFromRoot(child);
             }
         }
         return ret;
     }
 
-    // Routine used when rebuilding the body of the root of the linkset
-    // This is called after RemoveAllLinksToRoot() to restore all the constraints.
-    // This is called when the root body has been changed.
+    // Companion to RemoveBodyDependencies(). If RemoveBodyDependencies() returns 'true',
+    // this routine will restore the removed constraints.
     // Called at taint-time!!
     public void RestoreBodyDependencies(BSPrim child)
     {
@@ -254,7 +266,7 @@ public class BSLinkset
                                                 child.LocalID, LinksetRoot.LocalID, m_taintChildren.Count);
                 foreach (BSPhysObject bpo in m_taintChildren)
                 {
-                    PhysicallyLinkAChildToRoot(LinksetRoot, LinksetRoot.BSBody, bpo, bpo.BSBody);
+                    PhysicallyLinkAChildToRoot(LinksetRoot, bpo);
                 }
             }
             else
@@ -263,7 +275,7 @@ public class BSLinkset
                                                 LinksetRoot.LocalID,
                                                 LinksetRoot.LocalID, LinksetRoot.BSBody.ptr.ToString("X"),
                                                 child.LocalID, child.BSBody.ptr.ToString("X"));
-                PhysicallyLinkAChildToRoot(LinksetRoot, LinksetRoot.BSBody, child, child.BSBody);
+                PhysicallyLinkAChildToRoot(LinksetRoot, child);
             }
         }
     }
@@ -330,22 +342,22 @@ public class BSLinkset
         {
             m_children.Add(child);
 
-            BSPhysObject rootx = LinksetRoot; // capture the root and body as of now
+            BSPhysObject rootx = LinksetRoot; // capture the root as of now
             BSPhysObject childx = child;
 
-            DetailLog("{0},AddChildToLinkset,call,rID={1},rBody={2},cID={3},cBody={4}", 
-                            rootx.LocalID,
-                            rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
-                            childx.LocalID, childx.BSBody.ptr.ToString("X"));
+            DetailLog("{0},AddChildToLinkset,call,child={1}", LinksetRoot.LocalID, child.LocalID);
 
             PhysicsScene.TaintedObject("AddChildToLinkset", delegate()
             {
-                DetailLog("{0},AddChildToLinkset,taint,child={1}", LinksetRoot.LocalID, child.LocalID);
-                // build the physical binding between me and the child
-                m_taintChildren.Add(childx);
-
+                DetailLog("{0},AddChildToLinkset,taint,rID={1},rBody={2},cID={3},cBody={4}", 
+                                rootx.LocalID,
+                                rootx.LocalID, rootx.BSBody.ptr.ToString("X"),
+                                childx.LocalID, childx.BSBody.ptr.ToString("X"));
                 // Since this is taint-time, the body and shape could have changed for the child
-                PhysicallyLinkAChildToRoot(rootx, rootx.BSBody, childx, childx.BSBody);
+                rootx.ForcePosition = rootx.Position;   // DEBUG
+                childx.ForcePosition = childx.Position;   // DEBUG
+                PhysicallyLinkAChildToRoot(rootx, childx);
+                m_taintChildren.Add(child);
             });
         }
         return;
@@ -378,10 +390,8 @@ public class BSLinkset
 
             PhysicsScene.TaintedObject("RemoveChildFromLinkset", delegate()
             {
-                if (m_taintChildren.Contains(childx))
-                    m_taintChildren.Remove(childx);
-
-                PhysicallyUnlinkAChildFromRoot(rootx, rootx.BSBody, childx, childx.BSBody);
+                m_taintChildren.Remove(child);
+                PhysicallyUnlinkAChildFromRoot(rootx, childx);
                 RecomputeLinksetConstraintVariables();
             });
 
@@ -396,8 +406,7 @@ public class BSLinkset
 
     // Create a constraint between me (root of linkset) and the passed prim (the child).
     // Called at taint time!
-    private void PhysicallyLinkAChildToRoot(BSPhysObject rootPrim, BulletBody rootBody,
-                                    BSPhysObject childPrim, BulletBody childBody)
+    private void PhysicallyLinkAChildToRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
     {
         // Zero motion for children so they don't interpolate
         childPrim.ZeroMotion();
@@ -409,33 +418,17 @@ public class BSLinkset
         // real world coordinate of midpoint between the two objects
         OMV.Vector3 midPoint = rootPrim.Position + (childRelativePosition / 2);
 
-        DetailLog("{0},PhysicallyLinkAChildToRoot,taint,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6},midLoc={7}",
+        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},rBody={2},child={3},cBody={4},rLoc={5},cLoc={6},midLoc={7}",
                                         rootPrim.LocalID,
-                                        rootPrim.LocalID, rootBody.ptr.ToString("X"),
-                                        childPrim.LocalID, childBody.ptr.ToString("X"),
+                                        rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
+                                        childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"),
                                         rootPrim.Position, childPrim.Position, midPoint);
 
         // create a constraint that allows no freedom of movement between the two objects
         // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
 
-        // There is great subtlty in these paramters. Notice the check for a ptr of zero.
-        // We pass the BulletBody structure into the taint in order to capture the pointer
-        //     of the body at the time of constraint creation. This doesn't work for the very first
-        //     construction because there is no body yet. The body
-        //     is constructed later at taint time. Thus we use the body address at time of the
-        //     taint creation but, if it is zero, use what's in the prim at the moment.
-        //     There is a possible race condition since shape can change without a taint call
-        //     (like changing to a mesh that is already constructed). The fix for that would be
-        //     to only change BSShape at taint time thus syncronizing these operations at
-        //     the cost of efficiency and lag.
         BS6DofConstraint constrain = new BS6DofConstraint(
-                        PhysicsScene.World,
-                        rootBody.ptr == IntPtr.Zero ? rootPrim.BSBody : rootBody,
-                        childBody.ptr == IntPtr.Zero ? childPrim.BSBody : childBody,
-                        midPoint,
-                        true,
-                        true
-                        );
+                            PhysicsScene.World, rootPrim.BSBody, childPrim.BSBody, midPoint, true, true );
 
         /* NOTE: below is an attempt to build constraint with full frame computation, etc.
          *     Using the midpoint is easier since it lets the Bullet code manipulate the transforms
@@ -452,7 +445,7 @@ public class BSLinkset
 
         // create a constraint that allows no freedom of movement between the two objects
         // http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=4818
-        DetailLog("{0},PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
+        DetailLog("{0},BSLinkset.PhysicallyLinkAChildToRoot,taint,root={1},child={2}", rootPrim.LocalID, rootPrim.LocalID, childPrim.LocalID);
         BS6DofConstraint constrain = new BS6DofConstraint(
                         PhysicsScene.World, rootPrim.Body, childPrim.Body,
                         OMV.Vector3.Zero,
@@ -486,39 +479,44 @@ public class BSLinkset
         {
             constrain.SetSolverIterations(PhysicsScene.Params.linkConstraintSolverIterations);
         }
-
-        RecomputeLinksetConstraintVariables();
     }
 
     // Remove linkage between myself and a particular child
     // The root and child bodies are passed in because we need to remove the constraint between
     //      the bodies that were at unlink time.
     // Called at taint time!
-    private void PhysicallyUnlinkAChildFromRoot(BSPhysObject rootPrim, BulletBody rootBody,
-                                                    BSPhysObject childPrim, BulletBody childBody)
+    private bool PhysicallyUnlinkAChildFromRoot(BSPhysObject rootPrim, BSPhysObject childPrim)
     {
-        DetailLog("{0},PhysicallyUnlinkAChildFromRoot,taint,root={1},rBody={2},child={3},cBody={4}",
+        bool ret = false;
+        DetailLog("{0},BSLinkset.PhysicallyUnlinkAChildFromRoot,taint,root={1},rBody={2},child={3},cBody={4}",
                             rootPrim.LocalID,
-                            rootPrim.LocalID, rootBody.ptr.ToString("X"),
-                            childPrim.LocalID, childBody.ptr.ToString("X"));
+                            rootPrim.LocalID, rootPrim.BSBody.ptr.ToString("X"),
+                            childPrim.LocalID, childPrim.BSBody.ptr.ToString("X"));
 
         // Find the constraint for this link and get rid of it from the overall collection and from my list
-        PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootBody, childBody);
+        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody, childPrim.BSBody))
+        {
+            // Make the child refresh its location
+            BulletSimAPI.PushUpdate2(childPrim.BSBody.ptr);
+            ret = true;
+        }
 
-        // Make the child refresh its location
-        BulletSimAPI.PushUpdate2(childPrim.BSBody.ptr);
+        return ret;
     }
 
-    /*
     // Remove linkage between myself and any possible children I might have.
     // Called at taint time!
-    private void PhysicallyUnlinkAllChildrenFromRoot(BSPhysObject rootPrim)
+    private bool PhysicallyUnlinkAllChildrenFromRoot(BSPhysObject rootPrim)
     {
-        DetailLog("{0},PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
+        DetailLog("{0},BSLinkset.PhysicallyUnlinkAllChildren,taint", rootPrim.LocalID);
+        bool ret = false;
 
-        PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody);
+        if (PhysicsScene.Constraints.RemoveAndDestroyConstraint(rootPrim.BSBody))
+        {
+            ret = true;
+        }
+        return ret;
     }
-     */
 
     // Call each of the constraints that make up this linkset and recompute the
     //    various transforms and variables. Used when objects are added or removed
@@ -550,11 +548,17 @@ public class BSLinkset
         {
             // If this is a multiple object linkset, set everybody's center of mass to the set's center of mass
             OMV.Vector3 centerOfMass = ComputeLinksetCenterOfMass();
-            BulletSimAPI.SetCenterOfMassByPosRot2(LinksetRoot.BSBody.ptr, centerOfMass, OMV.Quaternion.Identity);
+            BulletSimAPI.SetCenterOfMassByPosRot2(LinksetRoot.BSBody.ptr, 
+                                centerOfMass, OMV.Quaternion.Identity);
+            DetailLog("{0},BSLinkset.RecomputeLinksetConstraintVariables,setCenterOfMass,COM={1},rBody={2}",
+                                LinksetRoot.LocalID, centerOfMass, LinksetRoot.BSBody.ptr.ToString("X"));
             foreach (BSPhysObject child in m_taintChildren)
             {
-                BulletSimAPI.SetCenterOfMassByPosRot2(child.BSBody.ptr, centerOfMass, OMV.Quaternion.Identity);
+                BulletSimAPI.SetCenterOfMassByPosRot2(child.BSBody.ptr, 
+                                centerOfMass, OMV.Quaternion.Identity);
             }
+
+            // BulletSimAPI.DumpAllInfo2(PhysicsScene.World.ptr);  // DEBUG DEBUG DEBUG
         }
         return;
     }
@@ -563,7 +567,8 @@ public class BSLinkset
     // Invoke the detailed logger and output something if it's enabled.
     private void DetailLog(string msg, params Object[] args)
     {
-        PhysicsScene.PhysicsLogging.Write(msg, args);
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
     }
 
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
index 1ac8c59..ead6a08 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
@@ -47,6 +47,7 @@ public abstract class BSPhysObject : PhysicsActor
         TypeName = typeName;
 
         Linkset = new BSLinkset(PhysicsScene, this);
+        LastAssetBuildFailed = false;
 
         CollisionCollection = new CollisionEventUpdate();
         SubscribedEventsMs = 0;
@@ -69,6 +70,23 @@ public abstract class BSPhysObject : PhysicsActor
     // Reference to the physical shape (btCollisionShape) of this object
     public BulletShape BSShape;
 
+    // 'true' if the mesh's underlying asset failed to build.
+    // This will keep us from looping after the first time the build failed.
+    public bool LastAssetBuildFailed { get; set; }
+
+    // The objects base shape information. Null if not a prim type shape.
+    public PrimitiveBaseShape BaseShape { get; protected set; }
+
+    // When the physical properties are updated, an EntityProperty holds the update values.
+    // Keep the current and last EntityProperties to enable computation of differences 
+    //      between the current update and the previous values.
+    public EntityProperties CurrentEntityProperties { get; set; }
+    public EntityProperties LastEntityProperties { get; set; }
+
+    public abstract OMV.Vector3 Scale { get; set; }
+    public abstract bool IsSolid { get; }
+    public abstract bool IsStatic { get; }
+
     // Stop all physical motion.
     public abstract void ZeroMotion();
 
@@ -85,6 +103,14 @@ public abstract class BSPhysObject : PhysicsActor
 
     public abstract OMV.Quaternion ForceOrientation { get; set; }
 
+    public abstract OMV.Vector3 ForceVelocity { get; set; }
+
+    public abstract OMV.Vector3 ForceRotationalVelocity { get; set; }
+
+    public abstract float ForceBuoyancy { get; set; }
+
+    public virtual bool ForceBodyShapeRebuild(bool inTaintTime) { return false; }
+
     #region Collisions
 
     // Requested number of milliseconds between collision events. Zero means disabled.
@@ -125,30 +151,28 @@ public abstract class BSPhysObject : PhysicsActor
         // if someone has subscribed for collision events....
         if (SubscribedEvents()) {
             CollisionCollection.AddCollider(collidingWith, new ContactPoint(contactPoint, contactNormal, pentrationDepth));
-            // DetailLog("{0},{1}.Collison.AddCollider,call,with={2},point={3},normal={4},depth={5}",
-            //                 LocalID, TypeName, collidingWith, contactPoint, contactNormal, pentrationDepth);
+            DetailLog("{0},{1}.Collison.AddCollider,call,with={2},point={3},normal={4},depth={5}",
+                            LocalID, TypeName, collidingWith, contactPoint, contactNormal, pentrationDepth);
 
             ret = true;
         }
         return ret;
     }
 
-    // Routine to send the collected collisions into the simulator.
-    // Also handles removal of this from the collection of objects with collisions if
-    //      there are no collisions from this object. Mechanism is create one last
-    //      collision event to make collision_end work.
+    // Send the collected collisions into the simulator.
     // Called at taint time from within the Step() function thus no locking problems
     //      with CollisionCollection and ObjectsWithNoMoreCollisions.
     // Return 'true' if there were some actual collisions passed up
     public virtual bool SendCollisions()
     {
         bool ret = true;
+        // If the 'no collision' call, force it to happen right now so quick collision_end
+        bool force = CollisionCollection.Count == 0;
 
         // throttle the collisions to the number of milliseconds specified in the subscription
-        int nowTime = PhysicsScene.SimulationNowTime;
-        if (nowTime >= NextCollisionOkTime)
+        if (force || (PhysicsScene.SimulationNowTime >= NextCollisionOkTime))
         {
-            NextCollisionOkTime = nowTime + SubscribedEventsMs;
+            NextCollisionOkTime = PhysicsScene.SimulationNowTime + SubscribedEventsMs;
 
             // We are called if we previously had collisions. If there are no collisions
             //   this time, send up one last empty event so OpenSim can sense collision end.
@@ -207,7 +231,8 @@ public abstract class BSPhysObject : PhysicsActor
     // High performance detailed logging routine used by the physical objects.
     protected void DetailLog(string msg, params Object[] args)
     {
-        PhysicsScene.PhysicsLogging.Write(msg, args);
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
     }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
index f7b68ba..aeeb4dd 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSPrim.cs
@@ -46,12 +46,10 @@ public sealed class BSPrim : BSPhysObject
     private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
     private static readonly string LogHeader = "[BULLETS PRIM]";
 
-    private PrimitiveBaseShape _pbs;
-
-    // _size is what the user passed. _scale is what we pass to the physics engine with the mesh.
-    // Often _scale is unity because the meshmerizer will apply _size when creating the mesh.
+    // _size is what the user passed. Scale is what we pass to the physics engine with the mesh.
+    // Often Scale is unity because the meshmerizer will apply _size when creating the mesh.
     private OMV.Vector3 _size;  // the multiplier for each mesh dimension as passed by the user
-    private OMV.Vector3 _scale; // the multiplier for each mesh dimension for the mesh as created by the meshmerizer
+    // private OMV.Vector3 _scale; // the multiplier for each mesh dimension for the mesh as created by the meshmerizer
 
     private bool _grabbed;
     private bool _isSelected;
@@ -98,12 +96,12 @@ public sealed class BSPrim : BSPhysObject
         _physicsActorType = (int)ActorTypes.Prim;
         _position = pos;
         _size = size;
-        _scale = new OMV.Vector3(1f, 1f, 1f);   // the scale will be set by CreateGeom depending on object type
+        Scale = new OMV.Vector3(1f, 1f, 1f);   // the scale will be set by CreateGeom depending on object type
         _orientation = rotation;
         _buoyancy = 1f;
         _velocity = OMV.Vector3.Zero;
         _rotationalVelocity = OMV.Vector3.Zero;
-        _pbs = pbs;
+        BaseShape = pbs;
         _isPhysical = pisPhysical;
         _isVolumeDetect = false;
         _friction = PhysicsScene.Params.defaultFriction;  // TODO: compute based on object material
@@ -160,33 +158,32 @@ public sealed class BSPrim : BSPhysObject
         get { return _size; }
         set {
             _size = value;
-            PhysicsScene.TaintedObject("BSPrim.setSize", delegate()
-            {
-                _mass = CalculateMass();   // changing size changes the mass
-                // Since _size changed, the mesh needs to be rebuilt. If rebuilt, all the correct
-                //   scale and margins are set.
-                CreateGeomAndObject(true);
-                // DetailLog("{0},BSPrim.setSize,size={1},scale={2},mass={3},physical={4}", LocalID, _size, _scale, _mass, IsPhysical);
-            });
+            ForceBodyShapeRebuild(false);
         }
     }
     // Scale is what we set in the physics engine. It is different than 'size' in that
     //     'size' can be encorporated into the mesh. In that case, the scale is <1,1,1>.
-    public OMV.Vector3 Scale
-    {
-        get { return _scale; }
-        set { _scale = value; }
-    }
+    public override OMV.Vector3 Scale { get; set; }
+
     public override PrimitiveBaseShape Shape {
         set {
-            _pbs = value;
-            PhysicsScene.TaintedObject("BSPrim.setShape", delegate()
-            {
-                _mass = CalculateMass();   // changing the shape changes the mass
-                CreateGeomAndObject(true);
-            });
+            BaseShape = value;
+            ForceBodyShapeRebuild(false);
         }
     }
+    public override bool ForceBodyShapeRebuild(bool inTaintTime)
+    {
+        BSScene.TaintCallback rebuildOperation = delegate()
+        {
+            _mass = CalculateMass();   // changing the shape changes the mass
+            CreateGeomAndObject(true);
+        };
+        if (inTaintTime)
+            rebuildOperation();
+        else
+            PhysicsScene.TaintedObject("BSPrim.ForceBodyShapeRebuild", rebuildOperation);
+        return true;
+    }
     public override bool Grabbed {
         set { _grabbed = value;
         }
@@ -196,7 +193,7 @@ public sealed class BSPrim : BSPhysObject
             _isSelected = value;
             PhysicsScene.TaintedObject("BSPrim.setSelected", delegate()
             {
-                // DetailLog("{0},BSPrim.selected,taint,selected={1}", LocalID, _isSelected);
+                DetailLog("{0},BSPrim.selected,taint,selected={1}", LocalID, _isSelected);
                 SetObjectDynamic(false);
             });
         }
@@ -265,6 +262,11 @@ public sealed class BSPrim : BSPhysObject
             return _position;
         }
         set {
+            // If you must push the position into the physics engine, use ForcePosition.
+            if (_position == value)
+            {
+                return;
+            }
             _position = value;
             // TODO: what does it mean to set the position of a child prim?? Rebuild the constraint?
             PositionSanityCheck();
@@ -320,9 +322,9 @@ public sealed class BSPrim : BSPhysObject
     }
 
     // A version of the sanity check that also makes sure a new position value is
-    //    pushed back to the physics engine. This routine would be used by anyone
+    //    pushed to the physics engine. This routine would be used by anyone
     //    who is not already pushing the value.
-    private bool PositionSanityCheck2(bool atTaintTime)
+    private bool PositionSanityCheck(bool inTaintTime)
     {
         bool ret = false;
         if (PositionSanityCheck())
@@ -332,9 +334,9 @@ public sealed class BSPrim : BSPhysObject
             BSScene.TaintCallback sanityOperation = delegate()
             {
                 DetailLog("{0},BSPrim.PositionSanityCheck,taint,pos={1},orient={2}", LocalID, _position, _orientation);
-                BulletSimAPI.SetObjectTranslation(PhysicsScene.WorldID, LocalID, _position, _orientation);
+                ForcePosition = _position;
             };
-            if (atTaintTime)
+            if (inTaintTime)
                 sanityOperation();
             else
                 PhysicsScene.TaintedObject("BSPrim.PositionSanityCheck", sanityOperation);
@@ -453,7 +455,6 @@ public sealed class BSPrim : BSPhysObject
         }
         return;
     }
-
     public override OMV.Vector3 Velocity {
         get { return _velocity; }
         set {
@@ -465,6 +466,13 @@ public sealed class BSPrim : BSPhysObject
             });
         }
     }
+    public override OMV.Vector3 ForceVelocity {
+        get { return _velocity; }
+        set {
+            _velocity = value;
+            BulletSimAPI.SetLinearVelocity2(BSBody.ptr, _velocity);
+        }
+    }
     public override OMV.Vector3 Torque {
         get { return _torque; }
         set { _torque = value;
@@ -490,6 +498,8 @@ public sealed class BSPrim : BSPhysObject
             return _orientation;
         }
         set {
+            if (_orientation == value)
+                return;
             _orientation = value;
             // TODO: what does it mean if a child in a linkset changes its orientation? Rebuild the constraint?
             PhysicsScene.TaintedObject("BSPrim.setOrientation", delegate()
@@ -534,13 +544,13 @@ public sealed class BSPrim : BSPhysObject
     }
 
     // An object is static (does not move) if selected or not physical
-    private bool IsStatic
+    public override bool IsStatic
     {
         get { return _isSelected || !IsPhysical; }
     }
 
     // An object is solid if it's not phantom and if it's not doing VolumeDetect
-    public bool IsSolid
+    public override bool IsSolid
     {
         get { return !IsPhantom && !_isVolumeDetect; }
     }
@@ -570,7 +580,7 @@ public sealed class BSPrim : BSPhysObject
         // Set up the object physicalness (does gravity and collisions move this object)
         MakeDynamic(IsStatic);
 
-        // Update vehicle specific parameters
+        // Update vehicle specific parameters (after MakeDynamic() so can change physical parameters)
         _vehicle.Refresh();
 
         // Arrange for collision events if the simulator wants them
@@ -593,7 +603,7 @@ public sealed class BSPrim : BSPhysObject
         // Recompute any linkset parameters.
         // When going from non-physical to physical, this re-enables the constraints that
         //     had been automatically disabled when the mass was set to zero.
-        Linkset.Refresh(this);
+        Linkset.Refresh(this, true);
 
         DetailLog("{0},BSPrim.UpdatePhysicalParameters,exit,static={1},solid={2},mass={3},collide={4},cf={5:X},body={6},shape={7}",
                         LocalID, IsStatic, IsSolid, _mass, SubscribedEvents(), CurrentCollisionFlags, BSBody, BSShape);
@@ -618,10 +628,18 @@ public sealed class BSPrim : BSPhysObject
             BulletSimAPI.SetMassProps2(BSBody.ptr, 0f, OMV.Vector3.Zero);
             // There is no inertia in a static object
             BulletSimAPI.UpdateInertiaTensor2(BSBody.ptr);
+            // Set collision detection parameters
+            if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+            {
+                BulletSimAPI.SetCcdMotionThreshold2(BSBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+                BulletSimAPI.SetCcdSweepSphereRadius2(BSBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+            }
             // There can be special things needed for implementing linksets
             Linkset.MakeStatic(this);
-            // The activation state is 'disabled' so Bullet will not try to act on it
+            // The activation state is 'disabled' so Bullet will not try to act on it.
             BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.DISABLE_SIMULATION);
+            // Start it out sleeping and physical actions could wake it up.
+            // BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ISLAND_SLEEPING);
 
             BSBody.collisionFilter = CollisionFilterGroups.StaticObjectFilter;
             BSBody.collisionMask = CollisionFilterGroups.StaticObjectMask;
@@ -638,12 +656,22 @@ public sealed class BSPrim : BSPhysObject
             // per http://www.bulletphysics.org/Bullet/phpBB3/viewtopic.php?t=3382
             BulletSimAPI.ClearAllForces2(BSBody.ptr);
 
+            // For good measure, make sure the transform is set through to the motion state
+            BulletSimAPI.SetTranslation2(BSBody.ptr, _position, _orientation);
+
             // A dynamic object has mass
             IntPtr collisionShapePtr = BulletSimAPI.GetCollisionShape2(BSBody.ptr);
             OMV.Vector3 inertia = BulletSimAPI.CalculateLocalInertia2(collisionShapePtr, Mass);
             BulletSimAPI.SetMassProps2(BSBody.ptr, _mass, inertia);
             BulletSimAPI.UpdateInertiaTensor2(BSBody.ptr);
 
+            // Set collision detection parameters
+            if (PhysicsScene.Params.ccdMotionThreshold > 0f)
+            {
+                BulletSimAPI.SetCcdMotionThreshold2(BSBody.ptr, PhysicsScene.Params.ccdMotionThreshold);
+                BulletSimAPI.SetCcdSweepSphereRadius2(BSBody.ptr, PhysicsScene.Params.ccdSweptSphereRadius);
+            }
+
             // Various values for simulation limits
             BulletSimAPI.SetDamping2(BSBody.ptr, PhysicsScene.Params.linearDamping, PhysicsScene.Params.angularDamping);
             BulletSimAPI.SetDeactivationTime2(BSBody.ptr, PhysicsScene.Params.deactivationTime);
@@ -655,8 +683,8 @@ public sealed class BSPrim : BSPhysObject
 
             // Force activation of the object so Bullet will act on it.
             // Must do the ForceActivationState2() to overcome the DISABLE_SIMULATION from static objects.
-            BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ISLAND_SLEEPING);
-            BulletSimAPI.Activate2(BSBody.ptr, true);
+            BulletSimAPI.ForceActivationState2(BSBody.ptr, ActivationState.ACTIVE_TAG);
+            // BulletSimAPI.Activate2(BSBody.ptr, true);
 
             BSBody.collisionFilter = CollisionFilterGroups.ObjectFilter;
             BSBody.collisionMask = CollisionFilterGroups.ObjectMask;
@@ -774,6 +802,15 @@ public sealed class BSPrim : BSPhysObject
             });
         }
     }
+    public override OMV.Vector3 ForceRotationalVelocity {
+        get {
+            return _rotationalVelocity;
+        }
+        set {
+            _rotationalVelocity = value;
+            BulletSimAPI.SetAngularVelocity2(BSBody.ptr, _rotationalVelocity);
+        }
+    }
     public override bool Kinematic {
         get { return _kinematic; }
         set { _kinematic = value;
@@ -786,13 +823,20 @@ public sealed class BSPrim : BSPhysObject
             _buoyancy = value;
             PhysicsScene.TaintedObject("BSPrim.setBuoyancy", delegate()
             {
-                // DetailLog("{0},BSPrim.SetBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
-                // Buoyancy is faked by changing the gravity applied to the object
-                float grav = PhysicsScene.Params.gravity * (1f - _buoyancy);
-                BulletSimAPI.SetGravity2(BSBody.ptr, new OMV.Vector3(0f, 0f, grav));
+                ForceBuoyancy = _buoyancy;
             });
         }
     }
+    public override float ForceBuoyancy {
+        get { return _buoyancy; }
+        set {
+            _buoyancy = value;
+            // DetailLog("{0},BSPrim.setForceBuoyancy,taint,buoy={1}", LocalID, _buoyancy);
+            // Buoyancy is faked by changing the gravity applied to the object
+            float grav = PhysicsScene.Params.gravity * (1f - _buoyancy);
+            BulletSimAPI.SetGravity2(BSBody.ptr, new OMV.Vector3(0f, 0f, grav));
+        }
+    }
 
     // Used for MoveTo
     public override OMV.Vector3 PIDTarget {
@@ -828,6 +872,9 @@ public sealed class BSPrim : BSPhysObject
 
     private List<OMV.Vector3> m_accumulatedForces = new List<OMV.Vector3>();
     public override void AddForce(OMV.Vector3 force, bool pushforce) {
+        AddForce(force, pushforce, false);
+    }
+    public void AddForce(OMV.Vector3 force, bool pushforce, bool inTaintTime) {
         // for an object, doesn't matter if force is a pushforce or not
         if (force.IsFinite())
         {
@@ -840,11 +887,12 @@ public sealed class BSPrim : BSPhysObject
             m_log.WarnFormat("{0}: Got a NaN force applied to a prim. LocalID={1}", LogHeader, LocalID);
             return;
         }
-        PhysicsScene.TaintedObject("BSPrim.AddForce", delegate()
+        BSScene.TaintCallback addForceOperation = delegate()
         {
             OMV.Vector3 fSum = OMV.Vector3.Zero;
             lock (m_accumulatedForces)
             {
+                // Sum the accumulated additional forces for one big force to apply once.
                 foreach (OMV.Vector3 v in m_accumulatedForces)
                 {
                     fSum += v;
@@ -854,7 +902,11 @@ public sealed class BSPrim : BSPhysObject
             // DetailLog("{0},BSPrim.AddObjectForce,taint,force={1}", LocalID, fSum);
             // For unknown reasons, "ApplyCentralForce" adds this force to the total force on the object.
             BulletSimAPI.ApplyCentralForce2(BSBody.ptr, fSum);
-        });
+        };
+        if (inTaintTime)
+            addForceOperation();
+        else
+            PhysicsScene.TaintedObject("BSPrim.AddForce", addForceOperation);
     }
 
     public override void AddAngularForce(OMV.Vector3 force, bool pushforce) {
@@ -872,19 +924,19 @@ public sealed class BSPrim : BSPhysObject
         float tmp;
 
         float returnMass = 0;
-        float hollowAmount = (float)_pbs.ProfileHollow * 2.0e-5f;
+        float hollowAmount = (float)BaseShape.ProfileHollow * 2.0e-5f;
         float hollowVolume = hollowAmount * hollowAmount;
 
-        switch (_pbs.ProfileShape)
+        switch (BaseShape.ProfileShape)
         {
             case ProfileShape.Square:
                 // default box
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     if (hollowAmount > 0.0)
                         {
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Square:
                             case HollowShape.Same:
@@ -908,19 +960,19 @@ public sealed class BSPrim : BSPhysObject
                         }
                     }
 
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
                     //a tube
 
-                    volume *= 0.78539816339e-2f * (float)(200 - _pbs.PathScaleX);
-                    tmp= 1.0f -2.0e-2f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.78539816339e-2f * (float)(200 - BaseShape.PathScaleX);
+                    tmp= 1.0f -2.0e-2f * (float)(200 - BaseShape.PathScaleY);
                     volume -= volume*tmp*tmp;
 
                     if (hollowAmount > 0.0)
                         {
                         hollowVolume *= hollowAmount;
    
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Square:
                             case HollowShape.Same:
@@ -945,13 +997,13 @@ public sealed class BSPrim : BSPhysObject
 
             case ProfileShape.Circle:
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     volume *= 0.78539816339f; // elipse base
 
                     if (hollowAmount > 0.0)
                         {
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Circle:
@@ -973,10 +1025,10 @@ public sealed class BSPrim : BSPhysObject
                         }
                     }
 
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
-                    volume *= 0.61685027506808491367715568749226e-2f * (float)(200 - _pbs.PathScaleX);
-                    tmp = 1.0f - .02f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.61685027506808491367715568749226e-2f * (float)(200 - BaseShape.PathScaleX);
+                    tmp = 1.0f - .02f * (float)(200 - BaseShape.PathScaleY);
                     volume *= (1.0f - tmp * tmp);
 
                     if (hollowAmount > 0.0)
@@ -985,7 +1037,7 @@ public sealed class BSPrim : BSPhysObject
                         // calculate the hollow volume by it's shape compared to the prim shape
                         hollowVolume *= hollowAmount;
 
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Circle:
@@ -1009,7 +1061,7 @@ public sealed class BSPrim : BSPhysObject
                 break;
 
             case ProfileShape.HalfCircle:
-                if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                 {
                 volume *= 0.52359877559829887307710723054658f;
                 }
@@ -1017,7 +1069,7 @@ public sealed class BSPrim : BSPhysObject
 
             case ProfileShape.EquilateralTriangle:
 
-                if (_pbs.PathCurve == (byte)Extrusion.Straight)
+                if (BaseShape.PathCurve == (byte)Extrusion.Straight)
                     {
                     volume *= 0.32475953f;
 
@@ -1025,7 +1077,7 @@ public sealed class BSPrim : BSPhysObject
                         {
 
                         // calculate the hollow volume by it's shape compared to the prim shape
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Triangle:
@@ -1050,11 +1102,11 @@ public sealed class BSPrim : BSPhysObject
                         volume *= (1.0f - hollowVolume);
                         }
                     }
-                else if (_pbs.PathCurve == (byte)Extrusion.Curve1)
+                else if (BaseShape.PathCurve == (byte)Extrusion.Curve1)
                     {
                     volume *= 0.32475953f;
-                    volume *= 0.01f * (float)(200 - _pbs.PathScaleX);
-                    tmp = 1.0f - .02f * (float)(200 - _pbs.PathScaleY);
+                    volume *= 0.01f * (float)(200 - BaseShape.PathScaleX);
+                    tmp = 1.0f - .02f * (float)(200 - BaseShape.PathScaleY);
                     volume *= (1.0f - tmp * tmp);
 
                     if (hollowAmount > 0.0)
@@ -1062,7 +1114,7 @@ public sealed class BSPrim : BSPhysObject
 
                         hollowVolume *= hollowAmount;
 
-                        switch (_pbs.HollowShape)
+                        switch (BaseShape.HollowShape)
                             {
                             case HollowShape.Same:
                             case HollowShape.Triangle:
@@ -1102,26 +1154,26 @@ public sealed class BSPrim : BSPhysObject
         float profileBegin;
         float profileEnd;
 
-        if (_pbs.PathCurve == (byte)Extrusion.Straight || _pbs.PathCurve == (byte)Extrusion.Flexible)
+        if (BaseShape.PathCurve == (byte)Extrusion.Straight || BaseShape.PathCurve == (byte)Extrusion.Flexible)
             {
-            taperX1 = _pbs.PathScaleX * 0.01f;
+            taperX1 = BaseShape.PathScaleX * 0.01f;
             if (taperX1 > 1.0f)
                 taperX1 = 2.0f - taperX1;
             taperX = 1.0f - taperX1;
 
-            taperY1 = _pbs.PathScaleY * 0.01f;
+            taperY1 = BaseShape.PathScaleY * 0.01f;
             if (taperY1 > 1.0f)
                 taperY1 = 2.0f - taperY1;
             taperY = 1.0f - taperY1;
             }
         else
             {
-            taperX = _pbs.PathTaperX * 0.01f;
+            taperX = BaseShape.PathTaperX * 0.01f;
             if (taperX < 0.0f)
                 taperX = -taperX;
             taperX1 = 1.0f - taperX;
 
-            taperY = _pbs.PathTaperY * 0.01f;
+            taperY = BaseShape.PathTaperY * 0.01f;
             if (taperY < 0.0f)
                 taperY = -taperY;
             taperY1 = 1.0f - taperY;
@@ -1131,13 +1183,13 @@ public sealed class BSPrim : BSPhysObject
 
         volume *= (taperX1 * taperY1 + 0.5f * (taperX1 * taperY + taperX * taperY1) + 0.3333333333f * taperX * taperY);
 
-        pathBegin = (float)_pbs.PathBegin * 2.0e-5f;
-        pathEnd = 1.0f - (float)_pbs.PathEnd * 2.0e-5f;
+        pathBegin = (float)BaseShape.PathBegin * 2.0e-5f;
+        pathEnd = 1.0f - (float)BaseShape.PathEnd * 2.0e-5f;
         volume *= (pathEnd - pathBegin);
 
         // this is crude aproximation
-        profileBegin = (float)_pbs.ProfileBegin * 2.0e-5f;
-        profileEnd = 1.0f - (float)_pbs.ProfileEnd * 2.0e-5f;
+        profileBegin = (float)BaseShape.ProfileBegin * 2.0e-5f;
+        profileEnd = 1.0f - (float)BaseShape.ProfileEnd * 2.0e-5f;
         volume *= (profileEnd - profileBegin);
 
         returnMass = _density * volume;
@@ -1172,7 +1224,8 @@ public sealed class BSPrim : BSPhysObject
         shape.Position = _position;
         shape.Rotation = _orientation;
         shape.Velocity = _velocity;
-        shape.Scale = _scale;
+        shape.Size = _size;
+        shape.Scale = Scale;
         shape.Mass = _isPhysical ? _mass : 0f;
         shape.Buoyancy = _buoyancy;
         shape.HullKey = 0;
@@ -1182,7 +1235,6 @@ public sealed class BSPrim : BSPhysObject
         shape.Collidable = (!IsPhantom) ? ShapeData.numericTrue : ShapeData.numericFalse;
         shape.Static = _isPhysical ? ShapeData.numericFalse : ShapeData.numericTrue;
         shape.Solid = IsSolid ? ShapeData.numericFalse : ShapeData.numericTrue;
-        shape.Size = _size;
     }
     // Rebuild the geometry and object.
     // This is called when the shape changes so we need to recreate the mesh/hull.
@@ -1199,11 +1251,12 @@ public sealed class BSPrim : BSPhysObject
         // Create the correct physical representation for this type of object.
         // Updates BSBody and BSShape with the new information.
         // Ignore 'forceRebuild'. This routine makes the right choices and changes of necessary.
-        PhysicsScene.Shapes.GetBodyAndShape(false, PhysicsScene.World, this, shapeData, _pbs, 
+        PhysicsScene.Shapes.GetBodyAndShape(false, PhysicsScene.World, this, shapeData, BaseShape, 
                         null, delegate(BulletBody dBody)
         {
             // Called if the current prim body is about to be destroyed.
             // Remove all the physical dependencies on the old body.
+            // (Maybe someday make the changing of BSShape an event handled by BSLinkset.)
             needToRestoreLinkset = Linkset.RemoveBodyDependencies(this);
         });
 
@@ -1292,7 +1345,11 @@ public sealed class BSPrim : BSPhysObject
             _acceleration = entprop.Acceleration;
             _rotationalVelocity = entprop.RotationalVelocity;
 
-            PositionSanityCheck2(true);
+            // remember the current and last set values
+            LastEntityProperties = CurrentEntityProperties;
+            CurrentEntityProperties = entprop;
+
+            PositionSanityCheck(true);
 
             DetailLog("{0},BSPrim.UpdateProperties,call,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
                     LocalID, _position, _orientation, _velocity, _acceleration, _rotationalVelocity);
@@ -1304,12 +1361,15 @@ public sealed class BSPrim : BSPhysObject
             /*
         else
         {
-            // For debugging, we can also report the movement of children
+            // For debugging, report the movement of children
             DetailLog("{0},BSPrim.UpdateProperties,child,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
                     LocalID, entprop.Position, entprop.Rotation, entprop.Velocity,
                     entprop.Acceleration, entprop.RotationalVelocity);
         }
              */
+        // The linkset implimentation might want to know about this.
+
+        Linkset.UpdateProperties(this);
     }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
index aaed7de..6621d39 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
@@ -39,7 +39,6 @@ using log4net;
 using OpenMetaverse;
 
 // TODOs for BulletSim (for BSScene, BSPrim, BSCharacter and BulletSim)
-// Move all logic out of the C++ code and into the C# code for easier future modifications.
 // Test sculpties (verified that they don't work)
 // Compute physics FPS reasonably
 // Based on material, set density and friction
@@ -90,10 +89,6 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     // let my minuions use my logger
     public ILog Logger { get { return m_log; } }
 
-    // If non-zero, the number of simulation steps between calls to the physics
-    //    engine to output detailed physics stats. Debug logging level must be on also.
-    private int m_detailedStatsStep = 0;
-
     public IMesher mesher;
     // Level of Detail values kept as float because that's what the Meshmerizer wants
     public float MeshLOD { get; private set; }
@@ -112,6 +107,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     private float m_fixedTimeStep;
     private long m_simulationStep = 0;
     public long SimulationStep { get { return m_simulationStep; } }
+    private int m_taintsToProcessPerStep;
 
     // A value of the time now so all the collision and update routines do not have to get their own
     // Set to 'now' just before all the prims and actors are called for collisions and updates
@@ -131,6 +127,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
     public bool ShouldMeshSculptedPrim { get; private set; }   // cause scuplted prims to get meshed
     public bool ShouldForceSimplePrimMeshing { get; private set; }   // if a cube or sphere, let Bullet do internal shapes
+    public bool ShouldUseHullsForPhysicalObjects { get; private set; }   // 'true' if should create hulls for physical objects
 
     public float PID_D { get; private set; }    // derivative
     public float PID_P { get; private set; }    // proportional
@@ -254,19 +251,15 @@ public class BSScene : PhysicsScene, IPhysicsParameters
 
         // The bounding box for the simulated world. The origin is 0,0,0 unless we're
         //    a child in a mega-region.
-        // Turns out that Bullet really doesn't care about the extents of the simulated
+        // Bullet actually doesn't care about the extents of the simulated
         //    area. It tracks active objects no matter where they are.
         Vector3 worldExtent = new Vector3(Constants.RegionSize, Constants.RegionSize, Constants.RegionHeight);
 
         // m_log.DebugFormat("{0}: Initialize: Calling BulletSimAPI.Initialize.", LogHeader);
-        WorldID = BulletSimAPI.Initialize(worldExtent, m_paramsHandle.AddrOfPinnedObject(),
+        World = new BulletSim(0, this, BulletSimAPI.Initialize2(worldExtent, m_paramsHandle.AddrOfPinnedObject(),
                                         m_maxCollisionsPerFrame, m_collisionArrayPinnedHandle.AddrOfPinnedObject(),
                                         m_maxUpdatesPerFrame, m_updateArrayPinnedHandle.AddrOfPinnedObject(),
-                                        m_DebugLogCallbackHandle);
-
-        // Initialization to support the transition to a new API which puts most of the logic
-        //   into the C# code so it is easier to modify and add to.
-        World = new BulletSim(WorldID, this, BulletSimAPI.GetSimHandle2(WorldID));
+                                        m_DebugLogCallbackHandle));
 
         Constraints = new BSConstraintCollection(World);
 
@@ -331,7 +324,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     // Called directly from unmanaged code so don't do much
     private void BulletLoggerPhysLog(string msg)
     {
-        PhysicsLogging.Write("[BULLETS UNMANAGED]:" + msg);
+        DetailLog("[BULLETS UNMANAGED]:" + msg);
     }
 
     public override void Dispose()
@@ -363,7 +356,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         }
 
         // Anything left in the unmanaged code should be cleaned out
-        BulletSimAPI.Shutdown(WorldID);
+        BulletSimAPI.Shutdown2(World.ptr);
 
         // Not logging any more
         PhysicsLogging.Close();
@@ -494,19 +487,19 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         m_simulationStep++;
         int numSubSteps = 0;
 
-        // Sometimes needed for debugging to find out what happened before the step
-        // PhysicsLogging.Flush();
+        // DEBUG
+        // DetailLog("{0},BSScene.Simulate,beforeStep,ntaimts={1},step={2}", DetailLogZero, numTaints, m_simulationStep);
 
         try
         {
             if (PhysicsLogging.Enabled) beforeTime = Util.EnvironmentTickCount();
 
-            numSubSteps = BulletSimAPI.PhysicsStep(WorldID, timeStep, m_maxSubSteps, m_fixedTimeStep,
+            numSubSteps = BulletSimAPI.PhysicsStep2(World.ptr, timeStep, m_maxSubSteps, m_fixedTimeStep,
                         out updatedEntityCount, out updatedEntitiesPtr, out collidersCount, out collidersPtr);
 
             if (PhysicsLogging.Enabled) simTime = Util.EnvironmentTickCountSubtract(beforeTime);
-            DetailLog("{0},Simulate,call, nTaints={1}, simTime={2}, substeps={3}, updates={4}, colliders={5}",
-                        DetailLogZero, numTaints, simTime, numSubSteps, updatedEntityCount, collidersCount);
+            DetailLog("{0},Simulate,call, frame={1}, nTaints={2}, simTime={3}, substeps={4}, updates={5}, colliders={6}",
+                        DetailLogZero, m_simulationStep, numTaints, simTime, numSubSteps, updatedEntityCount, collidersCount);
         }
         catch (Exception e)
         {
@@ -539,26 +532,26 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             }
         }
 
-        // This is a kludge to get avatar movement updates.
-        //   the simulator expects collisions for avatars even if there are have been no collisions. This updates
-        //   avatar animations and stuff.
-        // If you fix avatar animation updates, remove this overhead and let normal collision processing happen.
-        foreach (BSPhysObject bsp in m_avatars)
-            bsp.SendCollisions();
-
         // The above SendCollision's batch up the collisions on the objects.
         //      Now push the collisions into the simulator.
         if (ObjectsWithCollisions.Count > 0)
         {
             foreach (BSPhysObject bsp in ObjectsWithCollisions)
-                if (!m_avatars.Contains(bsp))   // don't call avatars twice
-                    if (!bsp.SendCollisions())
-                    {
-                        // If the object is done colliding, see that it's removed from the colliding list
-                        ObjectsWithNoMoreCollisions.Add(bsp);
-                    }
+                if (!bsp.SendCollisions())
+                {
+                    // If the object is done colliding, see that it's removed from the colliding list
+                    ObjectsWithNoMoreCollisions.Add(bsp);
+                }
         }
 
+        // This is a kludge to get avatar movement updates.
+        // The simulator expects collisions for avatars even if there are have been no collisions. 
+        //    The event updates avatar animations and stuff.
+        // If you fix avatar animation updates, remove this overhead and let normal collision processing happen.
+        foreach (BSPhysObject bsp in m_avatars)
+            if (!ObjectsWithCollisions.Contains(bsp))   // don't call avatars twice
+                bsp.SendCollisions();
+
         // Objects that are done colliding are removed from the ObjectsWithCollisions list.
         // Not done above because it is inside an iteration of ObjectWithCollisions.
         if (ObjectsWithNoMoreCollisions.Count > 0)
@@ -582,19 +575,15 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             }
         }
 
-        // If enabled, call into the physics engine to dump statistics
-        if (m_detailedStatsStep > 0)
-        {
-            if ((m_simulationStep % m_detailedStatsStep) == 0)
-            {
-                BulletSimAPI.DumpBulletStatistics();
-            }
-        }
+        // This causes the unmanaged code to output ALL the values found in ALL the objects in the world.
+        // Only enable this in a limited test world with few objects.
+        // BulletSimAPI.DumpAllInfo2(World.ptr);    // DEBUG DEBUG DEBUG
 
         // The physics engine returns the number of milliseconds it simulated this call.
         // These are summed and normalized to one second and divided by 1000 to give the reported physics FPS.
-        // Since Bullet normally does 5 or 6 substeps, this will normally sum to about 60 FPS.
-        return numSubSteps * m_fixedTimeStep * 1000;
+        // We multiply by 55 to give a recognizable running rate (55 or less).
+        return numSubSteps * m_fixedTimeStep * 1000 * 55;
+        // return timeStep * 1000 * 55;
     }
 
     // Something has collided
@@ -617,7 +606,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         BSPhysObject collidee = null;
         PhysObjects.TryGetValue(collidingWith, out collidee);
 
-        DetailLog("{0},BSScene.SendCollision,collide,id={1},with={2}", DetailLogZero, localID, collidingWith);
+        // DetailLog("{0},BSScene.SendCollision,collide,id={1},with={2}", DetailLogZero, localID, collidingWith);
 
         if (collider.Collide(collidingWith, collidee, collidePoint, collideNormal, penetration))
         {
@@ -704,6 +693,35 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         if (_taintedObjects.Count > 0)  // save allocating new list if there is nothing to process
         {
             // swizzle a new list into the list location so we can process what's there
+            int taintCount = m_taintsToProcessPerStep;
+            TaintCallbackEntry oneCallback = new TaintCallbackEntry();
+            while (_taintedObjects.Count > 0 && taintCount-- > 0)
+            {
+                bool gotOne = false;
+                lock (_taintLock)
+                {
+                    if (_taintedObjects.Count > 0)
+                    {
+                        oneCallback = _taintedObjects[0];
+                        _taintedObjects.RemoveAt(0);
+                        gotOne = true;
+                    }
+                }
+                if (gotOne)
+                {
+                    try
+                    {
+                        DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, oneCallback.ident); // DEBUG DEBUG DEBUG
+                        oneCallback.callback();
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.ErrorFormat("{0}: ProcessTaints: {1}: Exception: {2}", LogHeader, oneCallback.ident, e);
+                    }
+                }
+            }
+            /*
+            // swizzle a new list into the list location so we can process what's there
             List<TaintCallbackEntry> oldList;
             lock (_taintLock)
             {
@@ -715,6 +733,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             {
                 try
                 {
+                    DetailLog("{0},BSScene.ProcessTaints,doTaint,id={1}", DetailLogZero, tcbe.ident); // DEBUG DEBUG DEBUG
                     tcbe.callback();
                 }
                 catch (Exception e)
@@ -723,6 +742,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
                 }
             }
             oldList.Clear();
+             */
         }
     }
 
@@ -780,6 +800,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     delegate void ParamUser(BSScene scene, IConfig conf, string paramName, float val);
     delegate float ParamGet(BSScene scene);
     delegate void ParamSet(BSScene scene, string paramName, uint localID, float val);
+    delegate void SetOnObject(BSScene scene, BSPhysObject obj, float val);
 
     private struct ParameterDefn
     {
@@ -789,6 +810,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         public ParamUser userParam; // get the value from the configuration file
         public ParamGet getter;     // return the current value stored for this parameter
         public ParamSet setter;     // set the current value for this parameter
+        public SetOnObject onObject;    // set the value on an object in the physical domain
         public ParameterDefn(string n, string d, float v, ParamUser u, ParamGet g, ParamSet s)
         {
             name = n;
@@ -797,6 +819,17 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             userParam = u;
             getter = g;
             setter = s;
+            onObject = null;
+        }
+        public ParameterDefn(string n, string d, float v, ParamUser u, ParamGet g, ParamSet s, SetOnObject o)
+        {
+            name = n;
+            desc = d;
+            defaultValue = v;
+            userParam = u;
+            getter = g;
+            setter = s;
+            onObject = o;
         }
     }
 
@@ -818,6 +851,7 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     //
     // The single letter parameters for the delegates are:
     //    s = BSScene
+    //    o = BSPhysObject
     //    p = string parameter name
     //    l = localID of referenced object
     //    v = float value
@@ -834,6 +868,11 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s,cf,p,v) => { s.ShouldForceSimplePrimMeshing = cf.GetBoolean(p, s.BoolNumeric(v)); },
             (s) => { return s.NumericBool(s.ShouldForceSimplePrimMeshing); },
             (s,p,l,v) => { s.ShouldForceSimplePrimMeshing = s.BoolNumeric(v); } ),
+        new ParameterDefn("UseHullsForPhysicalObjects", "If true, create hulls for physical objects",
+            ConfigurationParameters.numericTrue,
+            (s,cf,p,v) => { s.ShouldUseHullsForPhysicalObjects = cf.GetBoolean(p, s.BoolNumeric(v)); },
+            (s) => { return s.NumericBool(s.ShouldUseHullsForPhysicalObjects); },
+            (s,p,l,v) => { s.ShouldUseHullsForPhysicalObjects = s.BoolNumeric(v); } ),
 
         new ParameterDefn("MeshLevelOfDetail", "Level of detail to render meshes (32, 16, 8 or 4. 32=most detailed)",
             8f,
@@ -876,6 +915,11 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s,cf,p,v) => { s.m_maxUpdatesPerFrame = cf.GetInt(p, (int)v); },
             (s) => { return (float)s.m_maxUpdatesPerFrame; },
             (s,p,l,v) => { s.m_maxUpdatesPerFrame = (int)v; } ),
+        new ParameterDefn("MaxTaintsToProcessPerStep", "Number of update taints to process before each simulation step",
+            100f,
+            (s,cf,p,v) => { s.m_taintsToProcessPerStep = cf.GetInt(p, (int)v); },
+            (s) => { return (float)s.m_taintsToProcessPerStep; },
+            (s,p,l,v) => { s.m_taintsToProcessPerStep = (int)v; } ),
         new ParameterDefn("MaxObjectMass", "Maximum object mass (10000.01)",
             10000.01f,
             (s,cf,p,v) => { s.MaximumObjectMass = cf.GetFloat(p, v); },
@@ -917,70 +961,84 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             -9.80665f,
             (s,cf,p,v) => { s.m_params[0].gravity = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].gravity; },
-            (s,p,l,v) => { s.m_params[0].gravity = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].gravity, p, PhysParameterEntry.APPLY_TO_NONE, v); },
+            (s,o,v) => { BulletSimAPI.SetGravity2(s.World.ptr, new Vector3(0f,0f,v)); } ),
 
 
         new ParameterDefn("LinearDamping", "Factor to damp linear movement per second (0.0 - 1.0)",
             0f,
             (s,cf,p,v) => { s.m_params[0].linearDamping = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linearDamping; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearDamping, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearDamping, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDamping2(o.BSBody.ptr, v, v); } ),
         new ParameterDefn("AngularDamping", "Factor to damp angular movement per second (0.0 - 1.0)",
             0f,
             (s,cf,p,v) => { s.m_params[0].angularDamping = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].angularDamping; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularDamping, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularDamping, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDamping2(o.BSBody.ptr, v, v); } ),
         new ParameterDefn("DeactivationTime", "Seconds before considering an object potentially static",
             0.2f,
             (s,cf,p,v) => { s.m_params[0].deactivationTime = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].deactivationTime; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].deactivationTime, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].deactivationTime, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetDeactivationTime2(o.BSBody.ptr, v); } ),
         new ParameterDefn("LinearSleepingThreshold", "Seconds to measure linear movement before considering static",
             0.8f,
             (s,cf,p,v) => { s.m_params[0].linearSleepingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linearSleepingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearSleepingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].linearSleepingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetSleepingThresholds2(o.BSBody.ptr, v, v); } ),
         new ParameterDefn("AngularSleepingThreshold", "Seconds to measure angular movement before considering static",
             1.0f,
             (s,cf,p,v) => { s.m_params[0].angularSleepingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].angularSleepingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularSleepingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].angularSleepingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetSleepingThresholds2(o.BSBody.ptr, v, v); } ),
         new ParameterDefn("CcdMotionThreshold", "Continuious collision detection threshold (0 means no CCD)" ,
             0f,     // set to zero to disable
             (s,cf,p,v) => { s.m_params[0].ccdMotionThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].ccdMotionThreshold; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdMotionThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdMotionThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetCcdMotionThreshold2(o.BSBody.ptr, v); } ),
         new ParameterDefn("CcdSweptSphereRadius", "Continuious collision detection test radius" ,
             0f,
             (s,cf,p,v) => { s.m_params[0].ccdSweptSphereRadius = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].ccdSweptSphereRadius; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdSweptSphereRadius, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].ccdSweptSphereRadius, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetCcdSweepSphereRadius2(o.BSBody.ptr, v); } ),
         new ParameterDefn("ContactProcessingThreshold", "Distance between contacts before doing collision check" ,
             0.1f,
             (s,cf,p,v) => { s.m_params[0].contactProcessingThreshold = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].contactProcessingThreshold; },
-            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].contactProcessingThreshold, p, l, v); } ),
+            (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].contactProcessingThreshold, p, l, v); },
+            (s,o,v) => { BulletSimAPI.SetContactProcessingThreshold2(o.BSBody.ptr, v); } ),
 
         new ParameterDefn("TerrainFriction", "Factor to reduce movement against terrain surface" ,
             0.5f,
             (s,cf,p,v) => { s.m_params[0].terrainFriction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainFriction; },
-            (s,p,l,v) => { s.m_params[0].terrainFriction = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainFriction = v;  /* TODO: set on real terrain */} ),
         new ParameterDefn("TerrainHitFraction", "Distance to measure hit collisions" ,
             0.8f,
             (s,cf,p,v) => { s.m_params[0].terrainHitFraction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainHitFraction; },
-            (s,p,l,v) => { s.m_params[0].terrainHitFraction = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainHitFraction = v; /* TODO: set on real terrain */ } ),
         new ParameterDefn("TerrainRestitution", "Bouncyness" ,
             0f,
             (s,cf,p,v) => { s.m_params[0].terrainRestitution = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].terrainRestitution; },
-            (s,p,l,v) => { s.m_params[0].terrainRestitution = v; s.TaintedUpdateParameter(p,l,v); } ),
+            (s,p,l,v) => { s.m_params[0].terrainRestitution = v;  /* TODO: set on real terrain */ } ),
         new ParameterDefn("AvatarFriction", "Factor to reduce movement against an avatar. Changed on avatar recreation.",
             0.2f,
             (s,cf,p,v) => { s.m_params[0].avatarFriction = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].avatarFriction; },
             (s,p,l,v) => { s.UpdateParameterObject(ref s.m_params[0].avatarFriction, p, l, v); } ),
+        new ParameterDefn("AvatarStandingFriction", "Avatar friction when standing. Changed on avatar recreation.",
+            10f,
+            (s,cf,p,v) => { s.m_params[0].avatarStandingFriction = cf.GetFloat(p, v); },
+            (s) => { return s.m_params[0].avatarStandingFriction; },
+            (s,p,l,v) => { s.m_params[0].avatarStandingFriction = v; } ),
         new ParameterDefn("AvatarDensity", "Density of an avatar. Changed on avatar recreation.",
             60f,
             (s,cf,p,v) => { s.m_params[0].avatarDensity = cf.GetFloat(p, v); },
@@ -1070,12 +1128,12 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s) => { return s.m_params[0].linkConstraintTransMotorMaxForce; },
             (s,p,l,v) => { s.m_params[0].linkConstraintTransMotorMaxForce = v; } ),
             new ParameterDefn("LinkConstraintCFM", "Amount constraint can be violated. 0=no violation, 1=infinite. Default=0.1",
-            0.1f,
+            0.001f,
             (s,cf,p,v) => { s.m_params[0].linkConstraintCFM = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linkConstraintCFM; },
             (s,p,l,v) => { s.m_params[0].linkConstraintCFM = v; } ),
             new ParameterDefn("LinkConstraintERP", "Amount constraint is corrected each tick. 0=none, 1=all. Default = 0.2",
-            0.2f,
+            0.8f,
             (s,cf,p,v) => { s.m_params[0].linkConstraintERP = cf.GetFloat(p, v); },
             (s) => { return s.m_params[0].linkConstraintERP; },
             (s,p,l,v) => { s.m_params[0].linkConstraintERP = v; } ),
@@ -1085,11 +1143,11 @@ public class BSScene : PhysicsScene, IPhysicsParameters
             (s) => { return s.m_params[0].linkConstraintSolverIterations; },
             (s,p,l,v) => { s.m_params[0].linkConstraintSolverIterations = v; } ),
 
-        new ParameterDefn("DetailedStats", "Frames between outputting detailed phys stats. (0 is off)",
+        new ParameterDefn("LogPhysicsStatisticsFrames", "Frames between outputting detailed phys stats. (0 is off)",
             0f,
-            (s,cf,p,v) => { s.m_detailedStatsStep = cf.GetInt(p, (int)v); },
-            (s) => { return (float)s.m_detailedStatsStep; },
-            (s,p,l,v) => { s.m_detailedStatsStep = (int)v; } ),
+            (s,cf,p,v) => { s.m_params[0].physicsLoggingFrames = cf.GetInt(p, (int)v); },
+            (s) => { return (float)s.m_params[0].physicsLoggingFrames; },
+            (s,p,l,v) => { s.m_params[0].physicsLoggingFrames = (int)v; } ),
     };
 
     // Convert a boolean to our numeric true and false values
@@ -1197,52 +1255,54 @@ public class BSScene : PhysicsScene, IPhysicsParameters
         return ret;
     }
 
-    // check to see if we are updating a parameter for a particular or all of the prims
-    protected void UpdateParameterObject(ref float loc, string parm, uint localID, float val)
-    {
-        List<uint> operateOn;
-        lock (PhysObjects) operateOn = new List<uint>(PhysObjects.Keys);
-        UpdateParameterSet(operateOn, ref loc, parm, localID, val);
-    }
-
     // update all the localIDs specified
     // If the local ID is APPLY_TO_NONE, just change the default value
     // If the localID is APPLY_TO_ALL change the default value and apply the new value to all the lIDs
     // If the localID is a specific object, apply the parameter change to only that object
-    protected void UpdateParameterSet(List<uint> lIDs, ref float defaultLoc, string parm, uint localID, float val)
+    protected void UpdateParameterObject(ref float defaultLoc, string parm, uint localID, float val)
     {
+        List<uint> objectIDs = new List<uint>();
         switch (localID)
         {
             case PhysParameterEntry.APPLY_TO_NONE:
                 defaultLoc = val;   // setting only the default value
+                // This will cause a call into the physical world if some operation is specified (SetOnObject).
+                objectIDs.Add(TERRAIN_ID);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
             case PhysParameterEntry.APPLY_TO_ALL:
                 defaultLoc = val;  // setting ALL also sets the default value
-                List<uint> objectIDs = lIDs;
-                string xparm = parm.ToLower();
-                float xval = val;
-                TaintedObject("BSScene.UpdateParameterSet", delegate() {
-                    foreach (uint lID in objectIDs)
-                    {
-                        BulletSimAPI.UpdateParameter(WorldID, lID, xparm, xval);
-                    }
-                });
+                lock (PhysObjects) objectIDs = new List<uint>(PhysObjects.Keys);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
             default:
                 // setting only one localID
-                TaintedUpdateParameter(parm, localID, val);
+                objectIDs.Add(localID);
+                TaintedUpdateParameter(parm, objectIDs, val);
                 break;
         }
     }
 
     // schedule the actual updating of the paramter to when the phys engine is not busy
-    protected void TaintedUpdateParameter(string parm, uint localID, float val)
+    protected void TaintedUpdateParameter(string parm, List<uint> lIDs, float val)
     {
-        uint xlocalID = localID;
-        string xparm = parm.ToLower();
         float xval = val;
-        TaintedObject("BSScene.TaintedUpdateParameter", delegate() {
-            BulletSimAPI.UpdateParameter(WorldID, xlocalID, xparm, xval);
+        List<uint> xlIDs = lIDs;
+        string xparm = parm;
+        TaintedObject("BSScene.UpdateParameterSet", delegate() {
+            ParameterDefn thisParam;
+            if (TryGetParameter(xparm, out thisParam))
+            {
+                if (thisParam.onObject != null)
+                {
+                    foreach (uint lID in xlIDs)
+                    {
+                        BSPhysObject theObject = null;
+                        PhysObjects.TryGetValue(lID, out theObject);
+                        thisParam.onObject(this, theObject, xval);
+                    }
+                }
+            }
         });
     }
 
@@ -1270,6 +1330,8 @@ public class BSScene : PhysicsScene, IPhysicsParameters
     public void DetailLog(string msg, params Object[] args)
     {
         PhysicsLogging.Write(msg, args);
+        // Add the Flush() if debugging crashes to get all the messages written out.
+        // PhysicsLogging.Flush();
     }
     // used to fill in the LocalID when there isn't one
     public const string DetailLogZero = "0000000000";
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
index 399a133..d3ba273 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSShapeCollection.cs
@@ -51,7 +51,7 @@ public class BSShapeCollection : IDisposable
     }
 
     // Description of a hull.
-    // Meshes and hulls have the same shape hash key but we only need hulls for efficient physical objects
+    // Meshes and hulls have the same shape hash key but we only need hulls for efficient collision calculations.
     private struct HullDesc
     {
         public IntPtr ptr;
@@ -59,17 +59,9 @@ public class BSShapeCollection : IDisposable
         public DateTime lastReferenced;
     }
 
-    private struct BodyDesc
-    {
-        public IntPtr ptr;
-        // Bodies are only used once so reference count is always either one or zero
-        public int referenceCount;
-        public DateTime lastReferenced;
-    }
-
-    private Dictionary<ulong, MeshDesc> Meshes = new Dictionary<ulong, MeshDesc>();
-    private Dictionary<ulong, HullDesc> Hulls = new Dictionary<ulong, HullDesc>();
-    private Dictionary<uint, BodyDesc> Bodies = new Dictionary<uint, BodyDesc>();
+    // The sharable set of meshes and hulls. Indexed by their shape hash.
+    private Dictionary<System.UInt64, MeshDesc> Meshes = new Dictionary<System.UInt64, MeshDesc>();
+    private Dictionary<System.UInt64, HullDesc> Hulls = new Dictionary<System.UInt64, HullDesc>();
 
     public BSShapeCollection(BSScene physScene)
     {
@@ -92,8 +84,12 @@ public class BSShapeCollection : IDisposable
     // First checks the shape and updates that if necessary then makes
     //    sure the body is of the right type.
     // Return 'true' if either the body or the shape changed.
+    // 'shapeCallback' and 'bodyCallback' are, if non-null, functions called just before
+    //    the current shape or body is destroyed. This allows the caller to remove any
+    //    higher level dependencies on the shape or body. Mostly used for LinkSets to
+    //    remove the physical constraints before the body is destroyed.
     // Called at taint-time!!
-    public bool GetBodyAndShape(bool forceRebuild, BulletSim sim, BSPrim prim, 
+    public bool GetBodyAndShape(bool forceRebuild, BulletSim sim, BSPhysObject prim, 
                     ShapeData shapeData, PrimitiveBaseShape pbs,
                     ShapeDestructionCallback shapeCallback, BodyDestructionCallback bodyCallback)
     {
@@ -103,7 +99,8 @@ public class BSShapeCollection : IDisposable
         lock (m_collectionActivityLock)
         {
             // Do we have the correct geometry for this type of object?
-            // Updates prim.BSShape with information/pointers to requested shape
+            // Updates prim.BSShape with information/pointers to shape.
+            // CreateGeom returns 'true' of BSShape as changed to a new shape.
             bool newGeom = CreateGeom(forceRebuild, prim, shapeData, pbs, shapeCallback);
             // If we had to select a new shape geometry for the object,
             //    rebuild the body around it.
@@ -120,26 +117,24 @@ public class BSShapeCollection : IDisposable
 
     // Track another user of a body
     // We presume the caller has allocated the body.
-    // Bodies only have one user so the reference count is either 1 or 0.
-    public void ReferenceBody(BulletBody body, bool atTaintTime)
+    // Bodies only have one user so the body is just put into the world if not already there.
+    public void ReferenceBody(BulletBody body, bool inTaintTime)
     {
         lock (m_collectionActivityLock)
         {
-            BodyDesc bodyDesc;
-            if (Bodies.TryGetValue(body.ID, out bodyDesc))
+            DetailLog("{0},BSShapeCollection.ReferenceBody,newBody", body.ID, body);
+            BSScene.TaintCallback createOperation = delegate()
             {
-                bodyDesc.referenceCount++;
-                DetailLog("{0},BSShapeCollection.ReferenceBody,existingBody,body={1},ref={2}", body.ID, body, bodyDesc.referenceCount);
-            }
+                if (!BulletSimAPI.IsInWorld2(body.ptr))
+                {
+                    BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, body.ptr);
+                    DetailLog("{0},BSShapeCollection.ReferenceBody,addedToWorld,ref={1}", body.ID, body);
+                }
+            };
+            if (inTaintTime)
+                createOperation();
             else
-            {
-                // New entry
-                bodyDesc.ptr = body.ptr;
-                bodyDesc.referenceCount = 1;
-                DetailLog("{0},BSShapeCollection.ReferenceBody,newBody,ref={1}", body.ID, body, bodyDesc.referenceCount);
-            }
-            bodyDesc.lastReferenced = System.DateTime.Now;
-            Bodies[body.ID] = bodyDesc;
+                PhysicsScene.TaintedObject("BSShapeCollection.ReferenceBody", createOperation);
         }
     }
 
@@ -152,42 +147,25 @@ public class BSShapeCollection : IDisposable
 
         lock (m_collectionActivityLock)
         {
-            BodyDesc bodyDesc;
-            if (Bodies.TryGetValue(body.ID, out bodyDesc))
+            BSScene.TaintCallback removeOperation = delegate()
             {
-                bodyDesc.referenceCount--;
-                bodyDesc.lastReferenced = System.DateTime.Now;
-                Bodies[body.ID] = bodyDesc;
-                DetailLog("{0},BSShapeCollection.DereferenceBody,ref={1}", body.ID, bodyDesc.referenceCount);
-
-                // If body is no longer being used, free it -- bodies are never shared.
-                if (bodyDesc.referenceCount == 0)
-                {
-                    Bodies.Remove(body.ID);
-                    BSScene.TaintCallback removeOperation = delegate()
-                    {
-                        DetailLog("{0},BSShapeCollection.DereferenceBody,DestroyingBody. ptr={1}",
-                                                    body.ID, body.ptr.ToString("X"));
-                        // If the caller needs to know the old body is going away, pass the event up.
-                        if (bodyCallback != null) bodyCallback(body);
-
-                        // Zero any reference to the shape so it is not freed when the body is deleted.
-                        BulletSimAPI.SetCollisionShape2(PhysicsScene.World.ptr, body.ptr, IntPtr.Zero);
-                        // It may have already been removed from the world in which case the next is a NOOP.
-                        BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, body.ptr);
-                        BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, body.ptr);
-                    };
-                    // If already in taint-time, do the operations now. Otherwise queue for later.
-                    if (inTaintTime)
-                        removeOperation();
-                    else
-                        PhysicsScene.TaintedObject("BSShapeCollection.DereferenceBody", removeOperation);
-                }
-            }
+                DetailLog("{0},BSShapeCollection.DereferenceBody,DestroyingBody. ptr={1}, inTaintTime={2}",
+                                            body.ID, body.ptr.ToString("X"), inTaintTime);
+                // If the caller needs to know the old body is going away, pass the event up.
+                if (bodyCallback != null) bodyCallback(body);
+
+                // It may have already been removed from the world in which case the next is a NOOP.
+                BulletSimAPI.RemoveObjectFromWorld2(PhysicsScene.World.ptr, body.ptr);
+
+                // Zero any reference to the shape so it is not freed when the body is deleted.
+                BulletSimAPI.SetCollisionShape2(PhysicsScene.World.ptr, body.ptr, IntPtr.Zero);
+                BulletSimAPI.DestroyObject2(PhysicsScene.World.ptr, body.ptr);
+            };
+            // If already in taint-time, do the operations now. Otherwise queue for later.
+            if (inTaintTime)
+                removeOperation();
             else
-            {
-                DetailLog("{0},BSShapeCollection.DereferenceBody,DID NOT FIND BODY", body.ID, bodyDesc.referenceCount);
-            }
+                PhysicsScene.TaintedObject("BSShapeCollection.DereferenceBody", removeOperation);
         }
     }
 
@@ -208,7 +186,7 @@ public class BSShapeCollection : IDisposable
                 {
                     // There is an existing instance of this mesh.
                     meshDesc.referenceCount++;
-                    DetailLog("{0},BSShapeColliction.ReferenceShape,existingMesh,key={1},cnt={2}",
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,existingMesh,key={1},cnt={2}",
                                 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
                 }
                 else
@@ -217,7 +195,7 @@ public class BSShapeCollection : IDisposable
                     meshDesc.ptr = shape.ptr;
                     // We keep a reference to the underlying IMesh data so a hull can be built
                     meshDesc.referenceCount = 1;
-                    DetailLog("{0},BSShapeColliction.ReferenceShape,newMesh,key={1},cnt={2}",
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,newMesh,key={1},cnt={2}",
                                 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), meshDesc.referenceCount);
                     ret = true;
                 }
@@ -230,7 +208,7 @@ public class BSShapeCollection : IDisposable
                 {
                     // There is an existing instance of this hull.
                     hullDesc.referenceCount++;
-                    DetailLog("{0},BSShapeColliction.ReferenceShape,existingHull,key={1},cnt={2}",
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,existingHull,key={1},cnt={2}",
                                 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
                 }
                 else
@@ -238,7 +216,7 @@ public class BSShapeCollection : IDisposable
                     // This is a new reference to a hull
                     hullDesc.ptr = shape.ptr;
                     hullDesc.referenceCount = 1;
-                    DetailLog("{0},BSShapeColliction.ReferenceShape,newHull,key={1},cnt={2}",
+                    DetailLog("{0},BSShapeCollection.ReferenceShape,newHull,key={1},cnt={2}",
                                 BSScene.DetailLogZero, shape.shapeKey.ToString("X"), hullDesc.referenceCount);
                     ret = true;
 
@@ -256,37 +234,42 @@ public class BSShapeCollection : IDisposable
     }
 
     // Release the usage of a shape.
-    // The collisionObject is released since it is a copy of the real collision shape.
-    public void DereferenceShape(BulletShape shape, bool atTaintTime, ShapeDestructionCallback shapeCallback)
+    public void DereferenceShape(BulletShape shape, bool inTaintTime, ShapeDestructionCallback shapeCallback)
     {
         if (shape.ptr == IntPtr.Zero)
             return;
 
         BSScene.TaintCallback dereferenceOperation = delegate()
         {
-            switch (shape.type)
+            if (shape.ptr != IntPtr.Zero)
             {
-                case ShapeData.PhysicsShapeType.SHAPE_HULL:
-                    DereferenceHull(shape, shapeCallback);
-                    break;
-                case ShapeData.PhysicsShapeType.SHAPE_MESH:
-                    DereferenceMesh(shape, shapeCallback);
-                    break;
-                case ShapeData.PhysicsShapeType.SHAPE_UNKNOWN:
-                    break;
-                default:
+                if (shape.isNativeShape)
+                {
                     // Native shapes are not tracked and are released immediately
-                    if (shape.ptr != IntPtr.Zero & shape.isNativeShape)
+                    DetailLog("{0},BSShapeCollection.DereferenceShape,deleteNativeShape,ptr={1},taintTime={2}",
+                                    BSScene.DetailLogZero, shape.ptr.ToString("X"), inTaintTime);
+                    if (shapeCallback != null) shapeCallback(shape);
+                    BulletSimAPI.DeleteCollisionShape2(PhysicsScene.World.ptr, shape.ptr);
+                }
+                else
+                {
+                    switch (shape.type)
                     {
-                        DetailLog("{0},BSShapeCollection.DereferenceShape,deleteNativeShape,ptr={1},taintTime={2}",
-                                        BSScene.DetailLogZero, shape.ptr.ToString("X"), atTaintTime);
-                        if (shapeCallback != null) shapeCallback(shape);
-                        BulletSimAPI.DeleteCollisionShape2(PhysicsScene.World.ptr, shape.ptr);
+                        case ShapeData.PhysicsShapeType.SHAPE_HULL:
+                            DereferenceHull(shape, shapeCallback);
+                            break;
+                        case ShapeData.PhysicsShapeType.SHAPE_MESH:
+                            DereferenceMesh(shape, shapeCallback);
+                            break;
+                        case ShapeData.PhysicsShapeType.SHAPE_UNKNOWN:
+                            break;
+                        default:
+                            break;
                     }
-                    break;
+                }
             }
         };
-        if (atTaintTime)
+        if (inTaintTime)
         {
             lock (m_collectionActivityLock)
             {
@@ -336,19 +319,31 @@ public class BSShapeCollection : IDisposable
 
     // Create the geometry information in Bullet for later use.
     // The objects needs a hull if it's physical otherwise a mesh is enough.
-    // No locking here because this is done when we know physics is not simulating.
-    // if 'forceRebuild' is true, the geometry is rebuilt. Otherwise a previously built version is used.
+    // if 'forceRebuild' is true, the geometry is unconditionally rebuilt. For meshes and hulls,
+    //     shared geometries will be used. If the parameters of the existing shape are the same
+    //     as this request, the shape is not rebuilt.
+    // Info in prim.BSShape is updated to the new shape.
     // Returns 'true' if the geometry was rebuilt.
     // Called at taint-time!
-    private bool CreateGeom(bool forceRebuild, BSPrim prim, ShapeData shapeData, 
+    private bool CreateGeom(bool forceRebuild, BSPhysObject prim, ShapeData shapeData, 
                             PrimitiveBaseShape pbs, ShapeDestructionCallback shapeCallback)
     {
         bool ret = false;
         bool haveShape = false;
         bool nativeShapePossible = true;
 
+        if (shapeData.Type == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
+        {
+            // an avatar capsule is close to a native shape (it is not shared)
+            ret = GetReferenceToNativeShape(prim, shapeData, ShapeData.PhysicsShapeType.SHAPE_AVATAR, 
+                            ShapeData.FixedShapeKey.KEY_CAPSULE, shapeCallback);
+            DetailLog("{0},BSShapeCollection.CreateGeom,avatarCapsule,shape={1}", prim.LocalID, prim.BSShape);
+            haveShape = true;
+        }
         // If the prim attributes are simple, this could be a simple Bullet native shape
-        if (nativeShapePossible
+        if (!haveShape
+                && pbs != null
+                && nativeShapePossible
                 && ((pbs.SculptEntry && !PhysicsScene.ShouldMeshSculptedPrim)
                     || (pbs.ProfileBegin == 0 && pbs.ProfileEnd == 0
                         && pbs.ProfileHollow == 0
@@ -358,7 +353,8 @@ public class BSShapeCollection : IDisposable
                         && pbs.PathScaleX == 100 && pbs.PathScaleY == 100
                         && pbs.PathShearX == 0 && pbs.PathShearY == 0) ) )
         {
-            if (pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
+            if ((pbs.ProfileShape == ProfileShape.HalfCircle && pbs.PathCurve == (byte)Extrusion.Curve1)
+                                && pbs.Scale.X == pbs.Scale.Y && pbs.Scale.Y == pbs.Scale.Z)
             {
                 haveShape = true;
                 if (forceRebuild
@@ -372,7 +368,7 @@ public class BSShapeCollection : IDisposable
                                         prim.LocalID, forceRebuild, prim.BSShape);
                 }
             }
-            else
+            if (pbs.ProfileShape == ProfileShape.Square && pbs.PathCurve == (byte)Extrusion.Straight)
             {
                 haveShape = true;
                 if (forceRebuild
@@ -390,9 +386,9 @@ public class BSShapeCollection : IDisposable
         // If a simple shape is not happening, create a mesh and possibly a hull.
         // Note that if it's a native shape, the check for physical/non-physical is not
         //     made. Native shapes are best used in either case.
-        if (!haveShape)
+        if (!haveShape && pbs != null)
         {
-            if (prim.IsPhysical)
+            if (prim.IsPhysical && PhysicsScene.ShouldUseHullsForPhysicalObjects)
             {
                 // Update prim.BSShape to reference a hull of this shape.
                 ret = GetReferenceToHull(prim, shapeData, pbs, shapeCallback);
@@ -409,12 +405,12 @@ public class BSShapeCollection : IDisposable
         return ret;
     }
 
-    // Creates a native shape and assignes it to prim.BSShape
-    private bool GetReferenceToNativeShape( BSPrim prim, ShapeData shapeData,
+    // Creates a native shape and assignes it to prim.BSShape.
+    // "Native" shapes are never shared. they are created here and destroyed in DereferenceShape().
+    private bool GetReferenceToNativeShape(BSPhysObject prim, ShapeData shapeData,
                             ShapeData.PhysicsShapeType shapeType, ShapeData.FixedShapeKey shapeKey,
                             ShapeDestructionCallback shapeCallback)
     {
-        BulletShape newShape;
 
         shapeData.Type = shapeType;
         // Bullet native objects are scaled by the Bullet engine so pass the size in
@@ -424,29 +420,48 @@ public class BSShapeCollection : IDisposable
         // release any previous shape
         DereferenceShape(prim.BSShape, true, shapeCallback);
 
-        // Native shapes are always built independently.
-        newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, shapeData), shapeType);
-        newShape.shapeKey = (ulong)shapeKey;
-        newShape.isNativeShape = true;
+        BulletShape newShape = BuildPhysicalNativeShape(shapeType, shapeData, shapeKey);
 
-        // Don't need to do a 'ReferenceShape()' here because native shapes are not tracked.
-        // DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1}", shapeData.ID, newShape);
+        // Don't need to do a 'ReferenceShape()' here because native shapes are not shared.
+        DetailLog("{0},BSShapeCollection.AddNativeShapeToPrim,create,newshape={1},scale={2}", 
+                                shapeData.ID, newShape, shapeData.Scale);
 
         prim.BSShape = newShape;
         return true;
     }
 
+    private BulletShape BuildPhysicalNativeShape(ShapeData.PhysicsShapeType shapeType, 
+                        ShapeData shapeData, ShapeData.FixedShapeKey shapeKey)
+    {
+        BulletShape newShape;
+
+        if (shapeType == ShapeData.PhysicsShapeType.SHAPE_AVATAR)
+        {
+            newShape = new BulletShape(
+                        BulletSimAPI.BuildCapsuleShape2(PhysicsScene.World.ptr, 1.0f, 1.0f, shapeData.Scale), 
+                        shapeType);
+        }
+        else
+        {
+            newShape = new BulletShape(BulletSimAPI.BuildNativeShape2(PhysicsScene.World.ptr, shapeData), shapeType);
+        }
+        newShape.shapeKey = (System.UInt64)shapeKey;
+        newShape.isNativeShape = true;
+
+        return newShape;
+    }
+
     // Builds a mesh shape in the physical world and updates prim.BSShape.
     // Dereferences previous shape in BSShape and adds a reference for this new shape.
     // Returns 'true' of a mesh was actually built. Otherwise .
     // Called at taint-time!
-    private bool GetReferenceToMesh(BSPrim prim, ShapeData shapeData, PrimitiveBaseShape pbs,
+    private bool GetReferenceToMesh(BSPhysObject prim, ShapeData shapeData, PrimitiveBaseShape pbs,
                                 ShapeDestructionCallback shapeCallback)
     {
         BulletShape newShape = new BulletShape(IntPtr.Zero);
 
         float lod;
-        ulong newMeshKey = ComputeShapeKey(shapeData, pbs, out lod);
+        System.UInt64 newMeshKey = ComputeShapeKey(shapeData, pbs, out lod);
 
         // if this new shape is the same as last time, don't recreate the mesh
         if (newMeshKey == prim.BSShape.shapeKey && prim.BSShape.type == ShapeData.PhysicsShapeType.SHAPE_MESH)
@@ -459,6 +474,8 @@ public class BSShapeCollection : IDisposable
         DereferenceShape(prim.BSShape, true, shapeCallback);
 
         newShape = CreatePhysicalMesh(prim.PhysObjectName, newMeshKey, pbs, shapeData.Size, lod);
+        // Take evasive action if the mesh was not constructed.
+        newShape = VerifyMeshCreated(newShape, prim, shapeData, pbs);
 
         ReferenceShape(newShape);
 
@@ -469,10 +486,10 @@ public class BSShapeCollection : IDisposable
         return true;        // 'true' means a new shape has been added to this prim
     }
 
-    private BulletShape CreatePhysicalMesh(string objName, ulong newMeshKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
+    private BulletShape CreatePhysicalMesh(string objName, System.UInt64 newMeshKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
     {
         IMesh meshData = null;
-        IntPtr meshPtr;
+        IntPtr meshPtr = IntPtr.Zero;
         MeshDesc meshDesc;
         if (Meshes.TryGetValue(newMeshKey, out meshDesc))
         {
@@ -484,23 +501,26 @@ public class BSShapeCollection : IDisposable
             // Pass false for physicalness as this creates some sort of bounding box which we don't need
             meshData = PhysicsScene.mesher.CreateMesh(objName, pbs, size, lod, false);
 
-            int[] indices = meshData.getIndexListAsInt();
-            List<OMV.Vector3> vertices = meshData.getVertexList();
-
-            float[] verticesAsFloats = new float[vertices.Count * 3];
-            int vi = 0;
-            foreach (OMV.Vector3 vv in vertices)
+            if (meshData != null)
             {
-                verticesAsFloats[vi++] = vv.X;
-                verticesAsFloats[vi++] = vv.Y;
-                verticesAsFloats[vi++] = vv.Z;
-            }
+                int[] indices = meshData.getIndexListAsInt();
+                List<OMV.Vector3> vertices = meshData.getVertexList();
+
+                float[] verticesAsFloats = new float[vertices.Count * 3];
+                int vi = 0;
+                foreach (OMV.Vector3 vv in vertices)
+                {
+                    verticesAsFloats[vi++] = vv.X;
+                    verticesAsFloats[vi++] = vv.Y;
+                    verticesAsFloats[vi++] = vv.Z;
+                }
 
-            // m_log.DebugFormat("{0}: CreateGeomMesh: calling CreateMesh. lid={1}, key={2}, indices={3}, vertices={4}",
-            //                  LogHeader, prim.LocalID, newMeshKey, indices.Length, vertices.Count);
+                // m_log.DebugFormat("{0}: CreateGeomMesh: calling CreateMesh. lid={1}, key={2}, indices={3}, vertices={4}",
+                //                  LogHeader, prim.LocalID, newMeshKey, indices.Length, vertices.Count);
 
-            meshPtr = BulletSimAPI.CreateMeshShape2(PhysicsScene.World.ptr,
-                                indices.GetLength(0), indices, vertices.Count, verticesAsFloats);
+                meshPtr = BulletSimAPI.CreateMeshShape2(PhysicsScene.World.ptr,
+                                    indices.GetLength(0), indices, vertices.Count, verticesAsFloats);
+            }
         }
         BulletShape newShape = new BulletShape(meshPtr, ShapeData.PhysicsShapeType.SHAPE_MESH);
         newShape.shapeKey = newMeshKey;
@@ -510,13 +530,13 @@ public class BSShapeCollection : IDisposable
 
     // See that hull shape exists in the physical world and update prim.BSShape.
     // We could be creating the hull because scale changed or whatever.
-    private bool GetReferenceToHull(BSPrim prim, ShapeData shapeData, PrimitiveBaseShape pbs,
+    private bool GetReferenceToHull(BSPhysObject prim, ShapeData shapeData, PrimitiveBaseShape pbs,
                                 ShapeDestructionCallback shapeCallback)
     {
         BulletShape newShape;
 
         float lod;
-        ulong newHullKey = ComputeShapeKey(shapeData, pbs, out lod);
+        System.UInt64 newHullKey = ComputeShapeKey(shapeData, pbs, out lod);
 
         // if the hull hasn't changed, don't rebuild it
         if (newHullKey == prim.BSShape.shapeKey && prim.BSShape.type == ShapeData.PhysicsShapeType.SHAPE_HULL)
@@ -525,10 +545,11 @@ public class BSShapeCollection : IDisposable
         DetailLog("{0},BSShapeCollection.CreateGeomHull,create,oldKey={1},newKey={2}",
                         prim.LocalID, prim.BSShape.shapeKey.ToString("X"), newHullKey.ToString("X"));
 
-        // Remove usage of the previous shape. Also removes reference to underlying mesh if it is a hull.
+        // Remove usage of the previous shape.
         DereferenceShape(prim.BSShape, true, shapeCallback);
 
         newShape = CreatePhysicalHull(prim.PhysObjectName, newHullKey, pbs, shapeData.Size, lod);
+        newShape = VerifyMeshCreated(newShape, prim, shapeData, pbs);
 
         ReferenceShape(newShape);
 
@@ -539,10 +560,10 @@ public class BSShapeCollection : IDisposable
     }
 
     List<ConvexResult> m_hulls;
-    private BulletShape CreatePhysicalHull(string objName, ulong newHullKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
+    private BulletShape CreatePhysicalHull(string objName, System.UInt64 newHullKey, PrimitiveBaseShape pbs, OMV.Vector3 size, float lod)
     {
 
-        IntPtr hullPtr;
+        IntPtr hullPtr = IntPtr.Zero;
         HullDesc hullDesc;
         if (Hulls.TryGetValue(newHullKey, out hullDesc))
         {
@@ -554,86 +575,89 @@ public class BSShapeCollection : IDisposable
             // Build a new hull in the physical world
             // Pass false for physicalness as this creates some sort of bounding box which we don't need
             IMesh meshData = PhysicsScene.mesher.CreateMesh(objName, pbs, size, lod, false);
-
-            int[] indices = meshData.getIndexListAsInt();
-            List<OMV.Vector3> vertices = meshData.getVertexList();
-
-            //format conversion from IMesh format to DecompDesc format
-            List<int> convIndices = new List<int>();
-            List<float3> convVertices = new List<float3>();
-            for (int ii = 0; ii < indices.GetLength(0); ii++)
+            if (meshData != null)
             {
-                convIndices.Add(indices[ii]);
-            }
-            foreach (OMV.Vector3 vv in vertices)
-            {
-                convVertices.Add(new float3(vv.X, vv.Y, vv.Z));
-            }
 
-            // setup and do convex hull conversion
-            m_hulls = new List<ConvexResult>();
-            DecompDesc dcomp = new DecompDesc();
-            dcomp.mIndices = convIndices;
-            dcomp.mVertices = convVertices;
-            ConvexBuilder convexBuilder = new ConvexBuilder(HullReturn);
-            // create the hull into the _hulls variable
-            convexBuilder.process(dcomp);
-
-            // Convert the vertices and indices for passing to unmanaged.
-            // The hull information is passed as a large floating point array.
-            // The format is:
-            //  convHulls[0] = number of hulls
-            //  convHulls[1] = number of vertices in first hull
-            //  convHulls[2] = hull centroid X coordinate
-            //  convHulls[3] = hull centroid Y coordinate
-            //  convHulls[4] = hull centroid Z coordinate
-            //  convHulls[5] = first hull vertex X
-            //  convHulls[6] = first hull vertex Y
-            //  convHulls[7] = first hull vertex Z
-            //  convHulls[8] = second hull vertex X
-            //  ...
-            //  convHulls[n] = number of vertices in second hull
-            //  convHulls[n+1] = second hull centroid X coordinate
-            //  ...
-            //
-            // TODO: is is very inefficient. Someday change the convex hull generator to return
-            //   data structures that do not need to be converted in order to pass to Bullet.
-            //   And maybe put the values directly into pinned memory rather than marshaling.
-            int hullCount = m_hulls.Count;
-            int totalVertices = 1;          // include one for the count of the hulls
-            foreach (ConvexResult cr in m_hulls)
-            {
-                totalVertices += 4;                         // add four for the vertex count and centroid
-                totalVertices += cr.HullIndices.Count * 3;  // we pass just triangles
-            }
-            float[] convHulls = new float[totalVertices];
+                int[] indices = meshData.getIndexListAsInt();
+                List<OMV.Vector3> vertices = meshData.getVertexList();
 
-            convHulls[0] = (float)hullCount;
-            int jj = 1;
-            foreach (ConvexResult cr in m_hulls)
-            {
-                // copy vertices for index access
-                float3[] verts = new float3[cr.HullVertices.Count];
-                int kk = 0;
-                foreach (float3 ff in cr.HullVertices)
+                //format conversion from IMesh format to DecompDesc format
+                List<int> convIndices = new List<int>();
+                List<float3> convVertices = new List<float3>();
+                for (int ii = 0; ii < indices.GetLength(0); ii++)
+                {
+                    convIndices.Add(indices[ii]);
+                }
+                foreach (OMV.Vector3 vv in vertices)
+                {
+                    convVertices.Add(new float3(vv.X, vv.Y, vv.Z));
+                }
+
+                // setup and do convex hull conversion
+                m_hulls = new List<ConvexResult>();
+                DecompDesc dcomp = new DecompDesc();
+                dcomp.mIndices = convIndices;
+                dcomp.mVertices = convVertices;
+                ConvexBuilder convexBuilder = new ConvexBuilder(HullReturn);
+                // create the hull into the _hulls variable
+                convexBuilder.process(dcomp);
+
+                // Convert the vertices and indices for passing to unmanaged.
+                // The hull information is passed as a large floating point array.
+                // The format is:
+                //  convHulls[0] = number of hulls
+                //  convHulls[1] = number of vertices in first hull
+                //  convHulls[2] = hull centroid X coordinate
+                //  convHulls[3] = hull centroid Y coordinate
+                //  convHulls[4] = hull centroid Z coordinate
+                //  convHulls[5] = first hull vertex X
+                //  convHulls[6] = first hull vertex Y
+                //  convHulls[7] = first hull vertex Z
+                //  convHulls[8] = second hull vertex X
+                //  ...
+                //  convHulls[n] = number of vertices in second hull
+                //  convHulls[n+1] = second hull centroid X coordinate
+                //  ...
+                //
+                // TODO: is is very inefficient. Someday change the convex hull generator to return
+                //   data structures that do not need to be converted in order to pass to Bullet.
+                //   And maybe put the values directly into pinned memory rather than marshaling.
+                int hullCount = m_hulls.Count;
+                int totalVertices = 1;          // include one for the count of the hulls
+                foreach (ConvexResult cr in m_hulls)
                 {
-                    verts[kk++] = ff;
+                    totalVertices += 4;                         // add four for the vertex count and centroid
+                    totalVertices += cr.HullIndices.Count * 3;  // we pass just triangles
                 }
+                float[] convHulls = new float[totalVertices];
 
-                // add to the array one hull's worth of data
-                convHulls[jj++] = cr.HullIndices.Count;
-                convHulls[jj++] = 0f;   // centroid x,y,z
-                convHulls[jj++] = 0f;
-                convHulls[jj++] = 0f;
-                foreach (int ind in cr.HullIndices)
+                convHulls[0] = (float)hullCount;
+                int jj = 1;
+                foreach (ConvexResult cr in m_hulls)
                 {
-                    convHulls[jj++] = verts[ind].x;
-                    convHulls[jj++] = verts[ind].y;
-                    convHulls[jj++] = verts[ind].z;
+                    // copy vertices for index access
+                    float3[] verts = new float3[cr.HullVertices.Count];
+                    int kk = 0;
+                    foreach (float3 ff in cr.HullVertices)
+                    {
+                        verts[kk++] = ff;
+                    }
+
+                    // add to the array one hull's worth of data
+                    convHulls[jj++] = cr.HullIndices.Count;
+                    convHulls[jj++] = 0f;   // centroid x,y,z
+                    convHulls[jj++] = 0f;
+                    convHulls[jj++] = 0f;
+                    foreach (int ind in cr.HullIndices)
+                    {
+                        convHulls[jj++] = verts[ind].x;
+                        convHulls[jj++] = verts[ind].y;
+                        convHulls[jj++] = verts[ind].z;
+                    }
                 }
+                // create the hull data structure in Bullet
+                hullPtr = BulletSimAPI.CreateHullShape2(PhysicsScene.World.ptr, hullCount, convHulls);
             }
-            // create the hull data structure in Bullet
-            hullPtr = BulletSimAPI.CreateHullShape2(PhysicsScene.World.ptr, hullCount, convHulls);
         }
 
         BulletShape newShape = new BulletShape(hullPtr, ShapeData.PhysicsShapeType.SHAPE_HULL);
@@ -652,32 +676,77 @@ public class BSShapeCollection : IDisposable
 
     // Create a hash of all the shape parameters to be used as a key
     //    for this particular shape.
-    private ulong ComputeShapeKey(ShapeData shapeData, PrimitiveBaseShape pbs, out float retLod)
+    private System.UInt64 ComputeShapeKey(ShapeData shapeData, PrimitiveBaseShape pbs, out float retLod)
     {
         // level of detail based on size and type of the object
         float lod = PhysicsScene.MeshLOD;
         if (pbs.SculptEntry)
             lod = PhysicsScene.SculptLOD;
 
+        // Mega prims usually get more detail because one can interact with shape approximations at this size.
         float maxAxis = Math.Max(shapeData.Size.X, Math.Max(shapeData.Size.Y, shapeData.Size.Z));
         if (maxAxis > PhysicsScene.MeshMegaPrimThreshold)
             lod = PhysicsScene.MeshMegaPrimLOD;
 
         retLod = lod;
-        return (ulong)pbs.GetMeshKey(shapeData.Size, lod);
+        return pbs.GetMeshKey(shapeData.Size, lod);
     }
     // For those who don't want the LOD
-    private ulong ComputeShapeKey(ShapeData shapeData, PrimitiveBaseShape pbs)
+    private System.UInt64 ComputeShapeKey(ShapeData shapeData, PrimitiveBaseShape pbs)
     {
         float lod;
         return ComputeShapeKey(shapeData, pbs, out lod);
     }
 
+    private BulletShape VerifyMeshCreated(BulletShape newShape, BSPhysObject prim, ShapeData shapeData, PrimitiveBaseShape pbs)
+    {
+        // If the shape was successfully created, nothing more to do
+        if (newShape.ptr != IntPtr.Zero)
+            return newShape;
+
+        // The most common reason for failure is that an underlying asset is not available
+
+        // If this mesh has an underlying asset and we have not failed getting it before, fetch the asset
+        if (pbs.SculptEntry && !prim.LastAssetBuildFailed && pbs.SculptTexture != OMV.UUID.Zero)
+        {
+            prim.LastAssetBuildFailed = true;
+            BSPhysObject xprim = prim;
+            Util.FireAndForget(delegate
+                {
+                    RequestAssetDelegate assetProvider = PhysicsScene.RequestAssetMethod;
+                    if (assetProvider != null)
+                    {
+                        BSPhysObject yprim = xprim; // probably not necessary, but, just in case.
+                        assetProvider(yprim.BaseShape.SculptTexture, delegate(AssetBase asset)
+                        {
+                            if (!yprim.BaseShape.SculptEntry)
+                                return;
+                            if (yprim.BaseShape.SculptTexture.ToString() != asset.ID)
+                                return;
+
+                            yprim.BaseShape.SculptData = new byte[asset.Data.Length];
+                            asset.Data.CopyTo(yprim.BaseShape.SculptData, 0);
+                            // This will cause the prim to see that the filler shape is not the right
+                            //    one and try again to build the object.
+                            yprim.ForceBodyShapeRebuild(false);
+
+                        });
+                    }
+                });
+        }
+
+        // While we figure out the real problem, stick a simple native shape on the object.
+        BulletShape fillinShape =
+            BuildPhysicalNativeShape(ShapeData.PhysicsShapeType.SHAPE_SPHERE, shapeData, ShapeData.FixedShapeKey.KEY_SPHERE);
+
+        return fillinShape;
+    }
+
     // Create a body object in Bullet.
     // Updates prim.BSBody with the information about the new body if one is created.
     // Returns 'true' if an object was actually created.
     // Called at taint-time.
-    private bool CreateBody(bool forceRebuild, BSPrim prim, BulletSim sim, BulletShape shape, 
+    private bool CreateBody(bool forceRebuild, BSPhysObject prim, BulletSim sim, BulletShape shape, 
                             ShapeData shapeData, BodyDestructionCallback bodyCallback)
     {
         bool ret = false;
@@ -701,6 +770,7 @@ public class BSShapeCollection : IDisposable
 
         if (mustRebuild || forceRebuild)
         {
+            // Free any old body
             DereferenceBody(prim.BSBody, true, bodyCallback);
 
             BulletBody aBody;
@@ -709,13 +779,13 @@ public class BSShapeCollection : IDisposable
             {
                 bodyPtr = BulletSimAPI.CreateBodyFromShape2(sim.ptr, shape.ptr,
                                         shapeData.ID, shapeData.Position, shapeData.Rotation);
-                // DetailLog("{0},BSShapeCollection.CreateBody,mesh,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
+                DetailLog("{0},BSShapeCollection.CreateBody,mesh,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
             }
             else
             {
                 bodyPtr = BulletSimAPI.CreateGhostFromShape2(sim.ptr, shape.ptr,
                                         shapeData.ID, shapeData.Position, shapeData.Rotation);
-                // DetailLog("{0},BSShapeCollection.CreateBody,ghost,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
+                DetailLog("{0},BSShapeCollection.CreateBody,ghost,ptr={1}", prim.LocalID, bodyPtr.ToString("X"));
             }
             aBody = new BulletBody(shapeData.ID, bodyPtr);
 
@@ -731,7 +801,8 @@ public class BSShapeCollection : IDisposable
 
     private void DetailLog(string msg, params Object[] args)
     {
-        PhysicsScene.PhysicsLogging.Write(msg, args);
+        if (PhysicsScene.PhysicsLogging.Enabled)
+            PhysicsScene.DetailLog(msg, args);
     }
 }
 }
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
index 70aa429..4106534 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSTerrainManager.cs
@@ -114,6 +114,9 @@ public class BSTerrainManager
                         BulletSimAPI.CreateBodyWithDefaultMotionState2(groundPlaneShape.ptr, BSScene.GROUNDPLANE_ID,
                                                             Vector3.Zero, Quaternion.Identity));
         BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, m_groundPlane.ptr);
+        BulletSimAPI.UpdateSingleAabb2(PhysicsScene.World.ptr, m_groundPlane.ptr);
+        // Ground plane does not move
+        BulletSimAPI.ForceActivationState2(m_groundPlane.ptr, ActivationState.DISABLE_SIMULATION);
         // Everything collides with the ground plane.
         BulletSimAPI.SetCollisionFilterMask2(m_groundPlane.ptr,
                         (uint)CollisionFilterGroups.GroundPlaneFilter, (uint)CollisionFilterGroups.GroundPlaneMask);
@@ -201,10 +204,10 @@ public class BSTerrainManager
     // The 'doNow' boolean says whether to do all the unmanaged activities right now (like when
     //     calling this routine from initialization or taint-time routines) or whether to delay
     //     all the unmanaged activities to taint-time.
-    private void UpdateOrCreateTerrain(uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords, bool atTaintTime)
+    private void UpdateOrCreateTerrain(uint id, float[] heightMap, Vector3 minCoords, Vector3 maxCoords, bool inTaintTime)
     {
-        DetailLog("{0},BSTerrainManager.UpdateOrCreateTerrain,call,minC={1},maxC={2},atTaintTime={3}",
-                            BSScene.DetailLogZero, minCoords, maxCoords, atTaintTime);
+        DetailLog("{0},BSTerrainManager.UpdateOrCreateTerrain,call,minC={1},maxC={2},inTaintTime={3}",
+                            BSScene.DetailLogZero, minCoords, maxCoords, inTaintTime);
 
         float minZ = float.MaxValue;
         float maxZ = float.MinValue;
@@ -296,16 +299,16 @@ public class BSTerrainManager
                     mapInfo.Ptr = BulletSimAPI.CreateHeightMapInfo2(PhysicsScene.World.ptr, mapInfo.ID,
                         mapInfo.minCoords, mapInfo.maxCoords, mapInfo.heightMap, TERRAIN_COLLISION_MARGIN);
 
+                    // Create the terrain shape from the mapInfo
+                    mapInfo.terrainShape = new BulletShape(BulletSimAPI.CreateTerrainShape2(mapInfo.Ptr),
+                                ShapeData.PhysicsShapeType.SHAPE_TERRAIN);
+
                     // The terrain object initial position is at the center of the object
                     Vector3 centerPos;
                     centerPos.X = minCoords.X + (mapInfo.sizeX / 2f);
                     centerPos.Y = minCoords.Y + (mapInfo.sizeY / 2f);
                     centerPos.Z = minZ + ((maxZ - minZ) / 2f);
 
-                    // Create the terrain shape from the mapInfo
-                    mapInfo.terrainShape = new BulletShape(BulletSimAPI.CreateTerrainShape2(mapInfo.Ptr),
-                                ShapeData.PhysicsShapeType.SHAPE_TERRAIN);
-
                     mapInfo.terrainBody = new BulletBody(mapInfo.ID,
                             BulletSimAPI.CreateBodyWithDefaultMotionState2(mapInfo.terrainShape.ptr,
                                                         id, centerPos, Quaternion.Identity));
@@ -320,9 +323,6 @@ public class BSTerrainManager
                 BulletSimAPI.SetRestitution2(mapInfo.terrainBody.ptr, PhysicsScene.Params.terrainRestitution);
                 BulletSimAPI.SetCollisionFlags2(mapInfo.terrainBody.ptr, CollisionFlags.CF_STATIC_OBJECT);
 
-                BulletSimAPI.SetMassProps2(mapInfo.terrainBody.ptr, 0f, Vector3.Zero);
-                BulletSimAPI.UpdateInertiaTensor2(mapInfo.terrainBody.ptr);
-
                 // Return the new terrain to the world of physical objects
                 BulletSimAPI.AddObjectToWorld2(PhysicsScene.World.ptr, mapInfo.terrainBody.ptr);
 
@@ -335,14 +335,15 @@ public class BSTerrainManager
 
                 // Make sure the new shape is processed.
                 // BulletSimAPI.Activate2(mapInfo.terrainBody.ptr, true);
-                BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.DISABLE_SIMULATION);
+                BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.ISLAND_SLEEPING);
+                // BulletSimAPI.ForceActivationState2(mapInfo.terrainBody.ptr, ActivationState.DISABLE_SIMULATION);
 
                 m_terrainModified = true;
             };
 
             // There is the option to do the changes now (we're already in 'taint time'), or
             //     to do the Bullet operations later.
-            if (atTaintTime)
+            if (inTaintTime)
                 rebuildOperation();
             else
                 PhysicsScene.TaintedObject("BSScene.UpdateOrCreateTerrain:UpdateExisting", rebuildOperation);
@@ -381,7 +382,7 @@ public class BSTerrainManager
             };
 
             // If already in taint-time, just call Bullet. Otherwise queue the operations for the safe time.
-            if (atTaintTime)
+            if (inTaintTime)
                 createOperation();
             else
                 PhysicsScene.TaintedObject("BSScene.UpdateOrCreateTerrain:NewTerrain", createOperation);
diff --git a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
index a43880d..5ffd591 100644
--- a/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BulletSimAPI.cs
@@ -101,9 +101,8 @@ public struct BulletShape
     }
     public IntPtr ptr;
     public ShapeData.PhysicsShapeType type;
-    public ulong shapeKey;
+    public System.UInt64 shapeKey;
     public bool isNativeShape;
-    // Hulls have an underlying mesh. A pointer to it is hidden here.
     public override string ToString()
     {
         StringBuilder buff = new StringBuilder();
@@ -192,8 +191,9 @@ public struct ShapeData
                 SHAPE_SPHERE    = 5,
                 SHAPE_MESH      = 6,
                 SHAPE_HULL      = 7,
-                SHAPE_GROUNDPLANE  = 8,
-                SHAPE_TERRAIN   = 9,
+        // following defined by BulletSim
+                SHAPE_GROUNDPLANE  = 20,
+                SHAPE_TERRAIN   = 21,
     };
     public uint ID;
     public PhysicsShapeType Type;
@@ -223,6 +223,7 @@ public struct ShapeData
         KEY_SPHERE      = 2,
         KEY_CONE        = 3,
         KEY_CYLINDER    = 4,
+        KEY_CAPSULE     = 5,
     }
 }
 [StructLayout(LayoutKind.Sequential)]
@@ -282,6 +283,7 @@ public struct ConfigurationParameters
     public float terrainHitFraction;
     public float terrainRestitution;
     public float avatarFriction;
+    public float avatarStandingFriction;
     public float avatarDensity;
     public float avatarRestitution;
     public float avatarCapsuleRadius;
@@ -305,6 +307,8 @@ public struct ConfigurationParameters
     public float linkConstraintCFM;
     public float linkConstraintSolverIterations;
 
+    public float physicsLoggingFrames;
+
     public const float numericTrue = 1f;
     public const float numericFalse = 0f;
 }
@@ -386,7 +390,7 @@ public enum CollisionFilterGroups : uint
     VolumeDetectMask        = ~BSensorTrigger,
     TerrainFilter           = BTerrainFilter,
     TerrainMask             = BAllFilter & ~BStaticFilter,
-    GroundPlaneFilter       = BAllFilter,
+    GroundPlaneFilter       = BGroundPlaneFilter,
     GroundPlaneMask         = BAllFilter
 
 };
@@ -426,6 +430,7 @@ public delegate void DebugLogCallback([MarshalAs(UnmanagedType.LPStr)]string msg
 [return: MarshalAs(UnmanagedType.LPStr)]
 public static extern string GetVersion();
 
+/* Remove the linkage to the old api methods
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern uint Initialize(Vector3 maxPosition, IntPtr parms,
                         int maxCollisions, IntPtr collisionArray,
@@ -529,7 +534,7 @@ public static extern Vector3 RecoverFromPenetration(uint worldID, uint id);
 // ===============================================================================
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void DumpBulletStatistics();
-
+*/
 // Log a debug message
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void SetDebugLogCallback(DebugLogCallback callback);
@@ -560,7 +565,8 @@ public static extern IntPtr GetBodyHandle2(IntPtr world, uint id);
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern IntPtr Initialize2(Vector3 maxPosition, IntPtr parms,
                                                                                         int maxCollisions,  IntPtr collisionArray,
-                                                                                        int maxUpdates, IntPtr updateArray);
+                                                                                        int maxUpdates, IntPtr updateArray,
+                                            DebugLogCallback logRoutine);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern bool UpdateParameter2(IntPtr world, uint localID, String parm, float value);
@@ -602,6 +608,9 @@ public static extern IntPtr BuildNativeShape2(IntPtr world, ShapeData shapeData)
 public static extern bool IsNativeShape2(IntPtr shape);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern IntPtr BuildCapsuleShape2(IntPtr world, float radius, float height, Vector3 scale);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern IntPtr CreateCompoundShape2(IntPtr sim);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
@@ -1037,18 +1046,6 @@ public static extern IntPtr GetConstraintRef2(IntPtr obj, int index);
 public static extern int GetNumConstraintRefs2(IntPtr obj);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 GetDeltaLinearVelocity2(IntPtr obj);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 GetDeltaAngularVelocity2(IntPtr obj);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 GetPushVelocity2(IntPtr obj);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
-public static extern Vector3 GetTurnVelocity2(IntPtr obj);
-
-[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void SetCollisionFilterMask2(IntPtr body, uint filter, uint mask);
 
 // =====================================================================================
@@ -1108,6 +1105,15 @@ public static extern float GetMargin2(IntPtr shape);
 public static extern void DumpRigidBody2(IntPtr sim, IntPtr collisionObject);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void DumpCollisionShape2(IntPtr sim, IntPtr collisionShape);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void DumpConstraint2(IntPtr sim, IntPtr constrain);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
+public static extern void DumpAllInfo2(IntPtr sim);
+
+[DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
 public static extern void DumpMapInfo2(IntPtr sim, IntPtr manInfo);
 
 [DllImport("BulletSim", CallingConvention = CallingConvention.Cdecl), SuppressUnmanagedCodeSecurity]
diff --git a/OpenSim/Region/Physics/Manager/PhysicsScene.cs b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
index 6a0558a..488900e 100644
--- a/OpenSim/Region/Physics/Manager/PhysicsScene.cs
+++ b/OpenSim/Region/Physics/Manager/PhysicsScene.cs
@@ -76,7 +76,7 @@ namespace OpenSim.Region.Physics.Manager
             get { return new NullPhysicsScene(); }
         }
 
-        public RequestAssetDelegate RequestAssetMethod { private get; set; }
+        public RequestAssetDelegate RequestAssetMethod { get; set; }
 
         public virtual void TriggerPhysicsBasedRestart()
         {
diff --git a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
index e7b3b2b..2548648 100644
--- a/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
+++ b/OpenSim/Region/Physics/OdePlugin/ODEPrim.cs
@@ -67,6 +67,14 @@ namespace OpenSim.Region.Physics.OdePlugin
         private int m_expectedCollisionContacts = 0;
 
         /// <summary>
+        /// Gets collide bits so that we can still perform land collisions if a mesh fails to load.
+        /// </summary>
+        private int BadMeshAssetCollideBits
+        {
+            get { return m_isphysical ? (int)CollisionCategories.Land : 0; }
+        }
+
+        /// <summary>
         /// Is this prim subject to physics?  Even if not, it's still solid for collision purposes.
         /// </summary>
         public override bool IsPhysical
@@ -100,6 +108,9 @@ namespace OpenSim.Region.Physics.OdePlugin
         private Vector3 m_taintAngularLock = Vector3.One;
         private IntPtr Amotor = IntPtr.Zero;
 
+        private object m_assetsLock = new object();
+        private bool m_assetFailed = false;
+
         private Vector3 m_PIDTarget;
         private float m_PIDTau;
         private float PID_D = 35f;
@@ -282,6 +293,7 @@ namespace OpenSim.Region.Physics.OdePlugin
             }
 
             m_taintadd = true;
+            m_assetFailed = false;
             _parent_scene.AddPhysicsActorTaint(this);
         }
 
@@ -337,8 +349,16 @@ namespace OpenSim.Region.Physics.OdePlugin
             prim_geom = geom;
 //Console.WriteLine("SetGeom to " + prim_geom + " for " + Name);
 
-            d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-            d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+            if (m_assetFailed)
+            {
+                d.GeomSetCategoryBits(prim_geom, 0);
+                d.GeomSetCollideBits(prim_geom, BadMeshAssetCollideBits);
+            }
+            else
+            {
+                d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+            }
 
             _parent_scene.geom_name_map[prim_geom] = Name;
             _parent_scene.actor_name_map[prim_geom] = this;
@@ -401,8 +421,17 @@ namespace OpenSim.Region.Physics.OdePlugin
                 myrot.W = _orientation.W;
                 d.BodySetQuaternion(Body, ref myrot);
                 d.GeomSetBody(prim_geom, Body);
-                m_collisionCategories |= CollisionCategories.Body;
-                m_collisionFlags |= (CollisionCategories.Land | CollisionCategories.Wind);
+
+                if (m_assetFailed)
+                {
+                    d.GeomSetCategoryBits(prim_geom, 0);
+                    d.GeomSetCollideBits(prim_geom, BadMeshAssetCollideBits);
+                }
+                else
+                {
+                    m_collisionCategories |= CollisionCategories.Body;
+                    m_collisionFlags |= (CollisionCategories.Land | CollisionCategories.Wind);
+                }
 
                 d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
                 d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
@@ -774,8 +803,16 @@ namespace OpenSim.Region.Physics.OdePlugin
                         m_collisionCategories &= ~CollisionCategories.Body;
                         m_collisionFlags &= ~(CollisionCategories.Wind | CollisionCategories.Land);
 
-                        d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-                        d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                        if (m_assetFailed)
+                        {
+                            d.GeomSetCategoryBits(prim_geom, 0);
+                            d.GeomSetCollideBits(prim_geom, 0);
+                        }
+                        else
+                        {
+                            d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                            d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                        }
 
                         d.BodyDestroy(Body);
                         lock (childrenPrim)
@@ -799,8 +836,17 @@ namespace OpenSim.Region.Physics.OdePlugin
                     m_collisionCategories &= ~CollisionCategories.Body;
                     m_collisionFlags &= ~(CollisionCategories.Wind | CollisionCategories.Land);
 
-                    d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-                    d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                    if (m_assetFailed)
+                    {
+                        d.GeomSetCategoryBits(prim_geom, 0);
+                        d.GeomSetCollideBits(prim_geom, 0);
+                    }
+                    else
+                    {
+
+                        d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                        d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                    }
 
                     Body = IntPtr.Zero;
                 }
@@ -1090,8 +1136,16 @@ Console.WriteLine("ZProcessTaints for " + Name);
                     prm.m_collisionFlags |= (CollisionCategories.Land | CollisionCategories.Wind);
 
 //Console.WriteLine(" GeomSetCategoryBits 1: " + prm.prim_geom + " - " + (int)prm.m_collisionCategories + " for " + Name);
-                    d.GeomSetCategoryBits(prm.prim_geom, (int)prm.m_collisionCategories);
-                    d.GeomSetCollideBits(prm.prim_geom, (int)prm.m_collisionFlags);
+                    if (prm.m_assetFailed)
+                    {
+                        d.GeomSetCategoryBits(prm.prim_geom, 0);
+                        d.GeomSetCollideBits(prm.prim_geom, prm.BadMeshAssetCollideBits);
+                    }
+                    else
+                    {
+                        d.GeomSetCategoryBits(prm.prim_geom, (int)prm.m_collisionCategories);
+                        d.GeomSetCollideBits(prm.prim_geom, (int)prm.m_collisionFlags);
+                    }
 
                     d.Quaternion quat = new d.Quaternion();
                     quat.W = prm._orientation.W;
@@ -1136,10 +1190,18 @@ Console.WriteLine("ZProcessTaints for " + Name);
                 m_collisionCategories |= CollisionCategories.Body;
                 m_collisionFlags |= (CollisionCategories.Land | CollisionCategories.Wind);
 
-//Console.WriteLine("GeomSetCategoryBits 2: " + prim_geom + " - " + (int)m_collisionCategories + " for " + Name);
-                d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-//Console.WriteLine(" Post GeomSetCategoryBits 2");
-                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                if (m_assetFailed)
+                {
+                    d.GeomSetCategoryBits(prim_geom, 0);
+                    d.GeomSetCollideBits(prim_geom, BadMeshAssetCollideBits);
+                }
+                else
+                {
+                    //Console.WriteLine("GeomSetCategoryBits 2: " + prim_geom + " - " + (int)m_collisionCategories + " for " + Name);
+                    d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                    //Console.WriteLine(" Post GeomSetCategoryBits 2");
+                    d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                }
 
                 d.Quaternion quat2 = new d.Quaternion();
                 quat2.W = _orientation.W;
@@ -1300,8 +1362,16 @@ Console.WriteLine("ZProcessTaints for " + Name);
                     disableBodySoft();
                 }
 
-                d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                if (m_assetFailed)
+                {
+                    d.GeomSetCategoryBits(prim_geom, 0);
+                    d.GeomSetCollideBits(prim_geom, 0);
+                }
+                else
+                {
+                    d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                    d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                }
 
                 if (IsPhysical)
                 {
@@ -1322,8 +1392,16 @@ Console.WriteLine("ZProcessTaints for " + Name);
                 if (m_collidesWater)
                     m_collisionFlags |= CollisionCategories.Water;
 
-                d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
-                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                if (m_assetFailed)
+                {
+                    d.GeomSetCategoryBits(prim_geom, 0);
+                    d.GeomSetCollideBits(prim_geom, BadMeshAssetCollideBits);
+                }
+                else
+                {
+                    d.GeomSetCategoryBits(prim_geom, (int)m_collisionCategories);
+                    d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+                }
 
                 if (IsPhysical)
                 {
@@ -1498,6 +1576,10 @@ Console.WriteLine("CreateGeom:");
                 mesh = _parent_scene.mesher.CreateMesh(Name, _pbs, _size, _parent_scene.meshSculptLOD, IsPhysical);
                 // createmesh returns null when it's a shape that isn't a cube.
                // m_log.Debug(m_localID);
+                if (mesh == null)
+                    CheckMeshAsset();
+                else
+                    m_assetFailed = false;
             }
 
 #if SPAM
@@ -1997,7 +2079,14 @@ Console.WriteLine(" JointCreateFixed");
                 // Don't need to re-enable body..   it's done in SetMesh
 
                 if (_parent_scene.needsMeshing(_pbs))
+                {
                     mesh = _parent_scene.mesher.CreateMesh(Name, _pbs, _size, meshlod, IsPhysical);
+                    if (mesh == null)
+                        CheckMeshAsset();
+                    else
+                        m_assetFailed = false;
+                }
+                    
             }
 
             CreateGeom(m_targetSpace, mesh);
@@ -2049,14 +2138,19 @@ Console.WriteLine(" JointCreateFixed");
                 m_collisionFlags &= ~CollisionCategories.Water;
             }
 
-            d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
-        }
+            if (m_assetFailed)
+                d.GeomSetCollideBits(prim_geom, BadMeshAssetCollideBits);
+            else
 
+                d.GeomSetCollideBits(prim_geom, (int)m_collisionFlags);
+        }
         /// <summary>
         /// Change prim in response to a shape taint.
         /// </summary>
         private void changeshape()
         {
+            m_taintshape = false;
+
             // Cleanup of old prim geometry and Bodies
             if (IsPhysical && Body != IntPtr.Zero)
             {
@@ -2084,6 +2178,7 @@ Console.WriteLine(" JointCreateFixed");
 
             IMesh mesh = null;
 
+
             if (_parent_scene.needsMeshing(_pbs))
             {
                 // Don't need to re-enable body..   it's done in CreateMesh
@@ -2094,6 +2189,10 @@ Console.WriteLine(" JointCreateFixed");
 
                 // createmesh returns null when it doesn't mesh.
                 mesh = _parent_scene.mesher.CreateMesh(Name, _pbs, _size, meshlod, IsPhysical);
+                if (mesh == null)
+                    CheckMeshAsset();
+                else
+                    m_assetFailed = false;
             }
 
             CreateGeom(m_targetSpace, mesh);
@@ -2130,7 +2229,7 @@ Console.WriteLine(" JointCreateFixed");
             }
 
             resetCollisionAccounting();
-            m_taintshape = false;
+//            m_taintshape = false;
         }
 
         /// <summary>
@@ -2396,6 +2495,7 @@ Console.WriteLine(" JointCreateFixed");
             set
             {
                 _pbs = value;
+                m_assetFailed = false;
                 m_taintshape = true;
             }
         }
@@ -3234,5 +3334,37 @@ Console.WriteLine(" JointCreateFixed");
         {
             m_material = pMaterial;
         }
+
+
+        private void CheckMeshAsset()
+        {
+            if (_pbs.SculptEntry && !m_assetFailed && _pbs.SculptTexture != UUID.Zero)
+            {
+                m_assetFailed = true;
+                Util.FireAndForget(delegate
+                    {
+                        RequestAssetDelegate assetProvider = _parent_scene.RequestAssetMethod;
+                        if (assetProvider != null)
+                            assetProvider(_pbs.SculptTexture, MeshAssetReveived);
+                    });
+            }
+        }
+
+        void MeshAssetReveived(AssetBase asset)
+        {
+            if (asset.Data != null && asset.Data.Length > 0)
+            {
+                if (!_pbs.SculptEntry)
+                    return;
+                if (_pbs.SculptTexture.ToString() != asset.ID)
+                    return;
+
+                _pbs.SculptData = new byte[asset.Data.Length];
+                asset.Data.CopyTo(_pbs.SculptData, 0);
+//                m_assetFailed = false;
+                m_taintshape = true;
+               _parent_scene.AddPhysicsActorTaint(this);
+            }
+        }          
     }
 }
\ No newline at end of file
diff --git a/OpenSim/Region/Physics/OdePlugin/OdeScene.cs b/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
index cbe21e2..d53bd90 100644
--- a/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
+++ b/OpenSim/Region/Physics/OdePlugin/OdeScene.cs
@@ -4320,4 +4320,4 @@ namespace OpenSim.Region.Physics.OdePlugin
             m_stats[ODEPrimUpdateFrameMsStatName] = 0;
         }
     }
-}
\ No newline at end of file
+}
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index 7620df3..cf801ba 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -56,6 +56,7 @@ using GridRegion = OpenSim.Services.Interfaces.GridRegion;
 using PresenceInfo = OpenSim.Services.Interfaces.PresenceInfo;
 using PrimType = OpenSim.Region.Framework.Scenes.PrimType;
 using AssetLandmark = OpenSim.Framework.AssetLandmark;
+using RegionFlags = OpenSim.Framework.RegionFlags;
 
 using LSL_Float = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLFloat;
 using LSL_Integer = OpenSim.Region.ScriptEngine.Shared.LSL_Types.LSLInteger;
@@ -3772,6 +3773,16 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         }
 
         /// <summary>
+        /// Returns the name of the child prim or seated avatar matching the
+        /// specified link number.
+        /// </summary>
+        /// <param name="linknum">
+        /// The number of a link in the linkset or a link-related constant.
+        /// </param>
+        /// <returns>
+        /// The name determined to match the specified link number.
+        /// </returns>
+        /// <remarks>
         /// The rules governing the returned name are not simple. The only
         /// time a blank name is returned is if the target prim has a blank
         /// name. If no prim with the given link number can be found then
@@ -3799,10 +3810,14 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// Mentions NULL_KEY being returned
         /// http://wiki.secondlife.com/wiki/LlGetLinkName
         /// Mentions using the LINK_* constants, some of which are negative
-        /// </summary>
+        /// </remarks>
         public LSL_String llGetLinkName(int linknum)
         {
             m_host.AddScriptLPS(1);
+            // simplest case, this prims link number
+            if (linknum == m_host.LinkNum || linknum == ScriptBaseClass.LINK_THIS)
+                return m_host.Name;
+
             // parse for sitting avatare-names
             List<String> nametable = new List<String>();
             World.ForEachRootScenePresence(delegate(ScenePresence presence)
@@ -3826,10 +3841,6 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                     return nametable[totalprims - linknum];
             }
 
-            // simplest case, this prims link number
-            if (m_host.LinkNum == linknum)
-                return m_host.Name;
-
             // Single prim
             if (m_host.LinkNum == 0)
             {
@@ -6458,7 +6469,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 GridInstantMessage msg = new GridInstantMessage(World,
                         m_host.OwnerID, m_host.Name, destID,
                         (byte)InstantMessageDialog.TaskInventoryOffered,
-                        false, string.Format("'{0}'"),
+                        false, string.Format("'{0}'", category),
 // We won't go so far as to add a SLURL, but this is the format used by LL as of 2012-10-06                                       
 // false, string.Format("'{0}'  ( http://slurl.com/secondlife/{1}/{2}/{3}/{4} )", category, World.Name, (int)pos.X, (int)pos.Y, (int)pos.Z),
                         folderID, false, pos,
@@ -9313,11 +9324,10 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
 
                 GridRegion info;
 
-                if (m_ScriptEngine.World.RegionInfo.RegionName == simulator) //Det data for this simulator?
-
-                    info = new GridRegion(m_ScriptEngine.World.RegionInfo);
+                if (World.RegionInfo.RegionName == simulator)
+                    info = new GridRegion(World.RegionInfo);
                 else
-                    info = m_ScriptEngine.World.GridService.GetRegionByName(m_ScriptEngine.World.RegionInfo.ScopeID, simulator);
+                    info = World.GridService.GetRegionByName(m_ScriptEngine.World.RegionInfo.ScopeID, simulator);
 
                 switch (data)
                 {
@@ -9327,9 +9337,24 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                             ScriptSleep(1000);
                             return UUID.Zero.ToString();
                         }
-                        if (m_ScriptEngine.World.RegionInfo.RegionName != simulator)
+
+                        bool isHypergridRegion = false;
+
+                        if (World.RegionInfo.RegionName != simulator && info.RegionSecret != "")
+                        {
+                            // Hypergrid is currently placing real destination region co-ords into RegionSecret.
+                            // But other code can also use this field for a genuine RegionSecret!  Therefore, if
+                            // anything is present we need to disambiguate.
+                            //
+                            // FIXME: Hypergrid should be storing this data in a different field.
+                            RegionFlags regionFlags
+                                = (RegionFlags)m_ScriptEngine.World.GridService.GetRegionFlags(
+                                    info.ScopeID, info.RegionID);
+                            isHypergridRegion = (regionFlags & RegionFlags.Hyperlink) != 0;
+                        }
+
+                        if (isHypergridRegion)
                         {
-                            //Hypergrid Region co-ordinates
                             uint rx = 0, ry = 0;
                             Utils.LongToUInts(Convert.ToUInt64(info.RegionSecret), out rx, out ry);
 
@@ -9340,7 +9365,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                         }
                         else
                         {
-                            //Local-cooridnates
+                            // Local grid co-oridnates
                             reply = new LSL_Vector(
                                 info.RegionLocX,
                                 info.RegionLocY,
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index 31be450..29bc163 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -3545,17 +3545,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         /// <returns></returns>
         public void osSetContentType(LSL_Key id, string type)
         {
-            CheckThreatLevel(ThreatLevel.High,"osSetResponseType");
+            CheckThreatLevel(ThreatLevel.High, "osSetContentType");
+
             if (m_UrlModule != null)
                 m_UrlModule.HttpContentType(new UUID(id),type);
         }
+
         /// Shout an error if the object owner did not grant the script the specified permissions.
         /// </summary>
         /// <param name="perms"></param>
         /// <returns>boolean indicating whether an error was shouted.</returns>
         protected bool ShoutErrorOnLackingOwnerPerms(int perms, string errorPrefix)
         {
-            CheckThreatLevel(ThreatLevel.Moderate, "osDropAttachment");
             m_host.AddScriptLPS(1);
             bool fail = false;
             if (m_item.PermsGranter != m_host.OwnerID)
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
index 60a7e14..62bd6b8 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Runtime/LSL_Constants.cs
@@ -612,6 +612,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
         public const int CLICK_ACTION_OPEN = 4;
         public const int CLICK_ACTION_PLAY = 5;
         public const int CLICK_ACTION_OPEN_MEDIA = 6;
+        public const int CLICK_ACTION_ZOOM = 7;
 
         // constants for the llDetectedTouch* functions
         public const int TOUCH_INVALID_FACE = -1;
diff --git a/OpenSim/Services/Connectors/Friends/FriendsSimConnector.cs b/OpenSim/Services/Connectors/Friends/FriendsSimConnector.cs
index 3fd0c53..6d5ce4b 100644
--- a/OpenSim/Services/Connectors/Friends/FriendsSimConnector.cs
+++ b/OpenSim/Services/Connectors/Friends/FriendsSimConnector.cs
@@ -128,7 +128,7 @@ namespace OpenSim.Services.Connectors.Friends
             return Call(region, sendData);
         }
 
-        public bool StatusNotify(GridRegion region, UUID userID, UUID friendID, bool online)
+        public bool StatusNotify(GridRegion region, UUID userID, string friendID, bool online)
         {
             Dictionary<string, object> sendData = new Dictionary<string, object>();
             //sendData["VERSIONMIN"] = ProtocolVersions.ClientProtocolVersionMin.ToString();
@@ -136,7 +136,7 @@ namespace OpenSim.Services.Connectors.Friends
             sendData["METHOD"] = "status";
 
             sendData["FromID"] = userID.ToString();
-            sendData["ToID"] = friendID.ToString();
+            sendData["ToID"] = friendID;
             sendData["Online"] = online.ToString();
 
             return Call(region, sendData);
@@ -153,7 +153,7 @@ namespace OpenSim.Services.Connectors.Friends
             if (!region.ServerURI.EndsWith("/"))
                 path = "/" + path;
             string uri = region.ServerURI + path;
-            m_log.DebugFormat("[FRIENDS SIM CONNECTOR]: calling {0}", uri);
+//            m_log.DebugFormat("[FRIENDS SIM CONNECTOR]: calling {0}", uri);
 
             try
             {
diff --git a/OpenSim/Services/HypergridService/HGFriendsService.cs b/OpenSim/Services/HypergridService/HGFriendsService.cs
index 98423d7..a8bcfb2 100644
--- a/OpenSim/Services/HypergridService/HGFriendsService.cs
+++ b/OpenSim/Services/HypergridService/HGFriendsService.cs
@@ -397,7 +397,7 @@ namespace OpenSim.Services.HypergridService
                     if (region != null)
                     {
                         m_log.DebugFormat("[HGFRIENDS SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
-                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID, online);
+                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
                     }
                 }
             }
diff --git a/OpenSim/Services/HypergridService/UserAgentService.cs b/OpenSim/Services/HypergridService/UserAgentService.cs
index a6fc731..a26a922 100644
--- a/OpenSim/Services/HypergridService/UserAgentService.cs
+++ b/OpenSim/Services/HypergridService/UserAgentService.cs
@@ -504,7 +504,7 @@ namespace OpenSim.Services.HypergridService
                     if (region != null)
                     {
                         m_log.DebugFormat("[USER AGENT SERVICE]: Remote Notify to region {0}, user {1} is {2}", region.RegionName, foreignUserID, (online ? "online" : "offline"));
-                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID, online);
+                        m_FriendsSimConnector.StatusNotify(region, foreignUserID, userID.ToString(), online);
                     }
                 }
             }
diff --git a/OpenSim/Services/Interfaces/IPresenceService.cs b/OpenSim/Services/Interfaces/IPresenceService.cs
index 8d583ff..90f9842 100644
--- a/OpenSim/Services/Interfaces/IPresenceService.cs
+++ b/OpenSim/Services/Interfaces/IPresenceService.cs
@@ -61,13 +61,49 @@ namespace OpenSim.Services.Interfaces
 
     public interface IPresenceService
     {
+        /// <summary>
+        /// Store session information.
+        /// </summary>
+        /// <returns>/returns>
+        /// <param name='userID'></param>
+        /// <param name='sessionID'></param>
+        /// <param name='secureSessionID'></param>
         bool LoginAgent(string userID, UUID sessionID, UUID secureSessionID);
+
+        /// <summary>
+        /// Remove session information.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sessionID'></param>
         bool LogoutAgent(UUID sessionID);
+
+        /// <summary>
+        /// Remove session information for all agents in the given region.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='regionID'></param>
         bool LogoutRegionAgents(UUID regionID);
 
+        /// <summary>
+        /// Update data for an existing session.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sessionID'></param>
+        /// <param name='regionID'></param>
         bool ReportAgent(UUID sessionID, UUID regionID);
 
+        /// <summary>
+        /// Get session information for a given session ID.
+        /// </summary>
+        /// <returns></returns>
+        /// <param name='sessionID'></param>
         PresenceInfo GetAgent(UUID sessionID);
+
+        /// <summary>
+        /// Get session information for a collection of users.
+        /// </summary>
+        /// <returns>Session information for the users.</returns>
+        /// <param name='userIDs'></param>
         PresenceInfo[] GetAgents(string[] userIDs);
     }
-}
+}
\ No newline at end of file