8 files changed, 311 insertions, 115 deletions

diff --git a/OpenSim/Data/MySQL/MySQLSimulationData.cs b/OpenSim/Data/MySQL/MySQLSimulationData.cs
index 4d7c0c9..3b90c85 100644
--- a/OpenSim/Data/MySQL/MySQLSimulationData.cs
+++ b/OpenSim/Data/MySQL/MySQLSimulationData.cs
@@ -1698,7 +1698,7 @@ namespace OpenSim.Data.MySQL
             cmd.Parameters.AddWithValue("MediaURL", prim.MediaUrl);
 
             if (prim.KeyframeMotion != null)
-                cmd.Parameters.AddWithValue("KeyframeMotion", prim.KeyframeMotion.Serialize());
+                cmd.Parameters.AddWithValue("KeyframeMotion", prim.KeyframeMotion.Serialize(true));
             else
                 cmd.Parameters.AddWithValue("KeyframeMotion", new Byte[0]);
 
diff --git a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
index 560f807..9ffb851 100644
--- a/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
@@ -1855,6 +1855,9 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
             if (grp.RootPart.PhysActor != null)
                 grp.RootPart.PhysActor.CrossingFailure();
 
+            if (grp.RootPart.KeyframeMotion != null)
+                grp.RootPart.KeyframeMotion.CrossingFailure();
+
             grp.ScheduleGroupForFullUpdate();
         }
 
@@ -1910,8 +1913,11 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                             grp, e);
                     }
                 }
+/*
+ * done on caller ( not in attachments crossing for now)
                 else
                 {
+
                     if (!grp.IsDeleted)
                     {
                         PhysicsActor pa = grp.RootPart.PhysActor;
@@ -1920,15 +1926,17 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
                             pa.CrossingFailure();
                             if (grp.RootPart.KeyframeMotion != null)
                             {
-                                grp.RootPart.Velocity = Vector3.Zero;
+                                // moved to KeyframeMotion.CrossingFailure
+//                                grp.RootPart.Velocity = Vector3.Zero;
                                 grp.RootPart.KeyframeMotion.CrossingFailure();
-                                grp.SendGroupRootTerseUpdate();
+//                                grp.SendGroupRootTerseUpdate();
                             }
                         }
                     }
 
                     m_log.ErrorFormat("[ENTITY TRANSFER MODULE]: Prim crossing failed for {0}", grp);
                 }
+ */
             }
             else
             {
diff --git a/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs b/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
index 6ee09b7..4e6425f 100644
--- a/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
+++ b/OpenSim/Region/Framework/Scenes/KeyframeMotion.cs
@@ -58,12 +58,31 @@ namespace OpenSim.Region.Framework.Scenes
         private Vector3 m_serializedPosition;
 
         private Keyframe m_currentFrame;
+
         private List<Keyframe> m_frames = new List<Keyframe>();
 
         private Keyframe[] m_keyframes;
 
         [NonSerialized()]
-        protected Timer m_timer = new Timer();
+        protected Timer m_timer = null;
+
+        // timer lock
+        [NonSerialized()]
+        private object m_onTimerLock;
+
+        // timer overrun detect
+        // prevents overlap or timer events threads frozen on the lock
+        [NonSerialized()]
+        private bool m_inOnTimer;
+
+        // skip timer events.
+        //timer.stop doesn't assure there aren't event threads still being fired
+        [NonSerialized()]
+        private bool m_skipOnTimer;
+
+        // retry position for cross fail
+        [NonSerialized()]
+        private Vector3 m_nextPosition;
 
         [NonSerialized()]
         private SceneObjectGroup m_group;
@@ -88,7 +107,7 @@ namespace OpenSim.Region.Framework.Scenes
         {
             set
             {
-                if (value)
+                if (!value)
                 {
                     // Once we're let go, recompute positions
                     if (m_selected)
@@ -100,7 +119,8 @@ namespace OpenSim.Region.Framework.Scenes
                     if (!m_selected)
                         m_serializedPosition = m_group.AbsolutePosition;
                 }
-                m_selected = value; }
+                m_selected = value;
+            }
         }
 
         public static KeyframeMotion FromData(SceneObjectGroup grp, Byte[] data)
@@ -111,31 +131,65 @@ namespace OpenSim.Region.Framework.Scenes
 
             KeyframeMotion newMotion = (KeyframeMotion)fmt.Deserialize(ms);
 
+/*
+ * create timer in start()
+ * this was creating unneeded timers
+
             // This will be started when position is updated
+
             newMotion.m_timer = new Timer();
             newMotion.m_timer.Interval = (int)timerInterval;
             newMotion.m_timer.AutoReset = true;
             newMotion.m_timer.Elapsed += newMotion.OnTimer;
+*/
+            newMotion.m_group = grp;
 
+            if (grp != null && grp.IsSelected)
+                newMotion.m_selected = true;
+
+            newMotion.m_onTimerLock = new object();
+            newMotion.m_skipOnTimer = false;
+            newMotion.m_inOnTimer = false;
             return newMotion;
         }
 
         public void UpdateSceneObject(SceneObjectGroup grp)
         {
-            m_group = grp;
-            Vector3 offset = grp.AbsolutePosition - m_serializedPosition;
-
-            m_basePosition += offset;
-            m_currentFrame.Position += offset;
-            for (int i = 0 ; i < m_frames.Count ; i++)
+//            lock (m_onTimerLock)
             {
-                Keyframe k = m_frames[i];
-                k.Position += offset;
-                m_frames[i] = k;
-            }
+                m_skipOnTimer = true;
+                if (m_timer != null)
+                    m_timer.Stop();
+
+                m_group = grp;
+                Vector3 grppos = grp.AbsolutePosition;
+                Vector3 offset = grppos - m_serializedPosition;
+                // avoid doing it more than once
+                // current this will happen draging a prim to other region
+                m_serializedPosition = grppos;
+
+                m_basePosition += offset;
+                m_currentFrame.Position += offset;
+
+                m_nextPosition += offset;
+/*                
+                for (int i = 0; i < m_frames.Count; i++)
+                {
+                    Keyframe k = m_frames[i];
+                    k.Position += offset;
+                    m_frames[i] = k;
+                }
+*/
+                for (int i = 0; i < m_frames.Count; i++)
+                {
+                    Keyframe k = m_frames[i];
+                    k.Position += offset;
+                    m_frames[i]=k;
+                }
 
-            if (m_running)
-                Start();
+                if (m_running)
+                    Start();
+            }
         }
 
         public KeyframeMotion(SceneObjectGroup grp, PlayMode mode, DataFormat data)
@@ -143,13 +197,16 @@ namespace OpenSim.Region.Framework.Scenes
             m_mode = mode;
             m_data = data;
 
+            m_onTimerLock = new object();
+
             m_group = grp;
             m_basePosition = grp.AbsolutePosition;
             m_baseRotation = grp.GroupRotation;
-
+/*
             m_timer.Interval = (int)timerInterval;
             m_timer.AutoReset = true;
             m_timer.Elapsed += OnTimer;
+ */
         }
 
         public void SetKeyframes(Keyframe[] frames)
@@ -157,19 +214,63 @@ namespace OpenSim.Region.Framework.Scenes
             m_keyframes = frames;
         }
 
+        public void Delete()
+        {
+            m_skipOnTimer = true;
+            m_frames.Clear();
+            m_keyframes = null;
+            m_running = false;
+
+            if (m_timer == null)
+                return;
+
+            m_timer.Stop();
+            m_timer.Elapsed -= OnTimer;
+            m_timer = null;
+        }
+
         public void Start()
         {
             if (m_keyframes.Length > 0)
+            {
+                if (m_timer == null)
+                {
+                    m_timer = new Timer();
+                    m_timer.Interval = (int)timerInterval;
+                    m_timer.AutoReset = true;
+                    m_timer.Elapsed += OnTimer;
+                }
+
+                m_skipOnTimer = false;
+                m_inOnTimer = false;
+
                 m_timer.Start();
-            m_running = true;
+                m_running = true;
+            }
+            else
+            {
+                m_running = false;
+                m_skipOnTimer = true;
+                if (m_timer != null)
+                {
+                    m_timer.Stop();
+                    m_timer.Elapsed -= OnTimer;
+                    m_timer = null;
+                }
+            }
         }
 
         public void Stop()
         {
+            m_skipOnTimer = true;
+
             // Failed object creation
             if (m_timer == null)
                 return;
+
             m_timer.Stop();
+            m_timer.Elapsed -= OnTimer;
+            m_timer = null;
 
             m_basePosition = m_group.AbsolutePosition;
             m_baseRotation = m_group.GroupRotation;
@@ -184,6 +285,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         public void Pause()
         {
+            m_skipOnTimer = true;
+
             m_group.RootPart.Velocity = Vector3.Zero;
             m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
             m_group.SendGroupRootTerseUpdate();
@@ -284,138 +387,197 @@ namespace OpenSim.Region.Framework.Scenes
 
         protected void OnTimer(object sender, ElapsedEventArgs e)
         {
-            if (m_frames.Count == 0)
-            {
-                GetNextList();
-
-                if (m_frames.Count == 0)
-                {
-                    Stop();
-                    return;
-                }
-
-                m_currentFrame = m_frames[0];
-            }
-
-            if (m_selected)
+            if (m_inOnTimer)
             {
-                if (m_group.RootPart.Velocity != Vector3.Zero)
-                {
-                    m_group.RootPart.Velocity = Vector3.Zero;
-                    m_group.SendGroupRootTerseUpdate();
-                }
+                m_log.Error("[KeyFrame]: timer overrun");
                 return;
             }
 
-            // Do the frame processing
-            double steps = (double)m_currentFrame.TimeMS / timerInterval;
-            float complete = ((float)m_currentFrame.TimeTotal - (float)m_currentFrame.TimeMS) / (float)m_currentFrame.TimeTotal;
-
-            if (steps <= 1.0)
+//            lock (m_onTimerLock)
             {
-                m_currentFrame.TimeMS = 0;
-
-                m_group.AbsolutePosition = (Vector3)m_currentFrame.Position;
-                m_group.UpdateGroupRotationR((Quaternion)m_currentFrame.Rotation);
-            }
-            else
-            {
-                Vector3 v = (Vector3)m_currentFrame.Position - m_group.AbsolutePosition;
-                Vector3 motionThisFrame = v / (float)steps;
-                v = v * 1000 / m_currentFrame.TimeMS;
-
-                bool update = false;
+                if (m_skipOnTimer)
+                    return;
 
-                if (Vector3.Mag(motionThisFrame) >= 0.05f)
+                m_inOnTimer = true;
+                try
                 {
-                    m_group.AbsolutePosition += motionThisFrame;
-                    m_group.RootPart.Velocity = v;
-                    update = true;
-                }
+                    if (m_frames.Count == 0)
+                    {
+                        GetNextList();
 
-                if ((Quaternion)m_currentFrame.Rotation != m_group.GroupRotation)
-                {
-                    Quaternion current = m_group.GroupRotation;
+                        if (m_frames.Count == 0)
+                        {
+                            Stop();
+                            m_inOnTimer = false;
+                            return;
+                        }
 
-                    Quaternion step = Quaternion.Slerp(m_currentFrame.StartRotation, (Quaternion)m_currentFrame.Rotation, complete);
+                        m_currentFrame = m_frames[0];
+                    }
 
-                    float angle = 0;
+                    if (m_selected)
+                    {
+                        if (m_group.RootPart.Velocity != Vector3.Zero)
+                        {
+                            m_group.RootPart.Velocity = Vector3.Zero;
+                            m_group.SendGroupRootTerseUpdate();
+                        }
+                        m_inOnTimer = false;
+                        return;
+                    }
 
-                    float aa = current.X * current.X + current.Y * current.Y + current.Z * current.Z + current.W * current.W;
-                    float bb = step.X * step.X + step.Y * step.Y + step.Z * step.Z + step.W * step.W;
-                    float aa_bb = aa * bb;
+                    // Do the frame processing
+                    double steps = (double)m_currentFrame.TimeMS / timerInterval;
+                    float complete = ((float)m_currentFrame.TimeTotal - (float)m_currentFrame.TimeMS) / (float)m_currentFrame.TimeTotal;
 
-                    if (aa_bb == 0)
+                    if (steps <= 1.0)
                     {
-                        angle = 0;
+                        m_currentFrame.TimeMS = 0;
+
+                        //                    m_group.AbsolutePosition = (Vector3)m_currentFrame.Position;
+                        m_nextPosition = (Vector3)m_currentFrame.Position;
+                        m_group.AbsolutePosition = m_nextPosition;
+
+                        m_group.UpdateGroupRotationR((Quaternion)m_currentFrame.Rotation);
                     }
                     else
                     {
-                        float ab = current.X * step.X +
-                                   current.Y * step.Y +
-                                   current.Z * step.Z +
-                                   current.W * step.W;
-                        float q = (ab * ab) / aa_bb;
+                        Vector3 v = (Vector3)m_currentFrame.Position - m_group.AbsolutePosition;
+                        Vector3 motionThisFrame = v / (float)steps;
+                        v = v * 1000 / m_currentFrame.TimeMS;
 
-                        if (q > 1.0f)
+                        bool update = false;
+
+                        if (Vector3.Mag(motionThisFrame) >= 0.05f)
                         {
-                            angle = 0;
+                            //                        m_group.AbsolutePosition += motionThisFrame;
+                            m_nextPosition = m_group.AbsolutePosition + motionThisFrame;
+                            m_group.AbsolutePosition = m_nextPosition;
+
+                            m_group.RootPart.Velocity = v;
+                            update = true;
                         }
-                        else
+
+                        if ((Quaternion)m_currentFrame.Rotation != m_group.GroupRotation)
                         {
-                            angle = (float)Math.Acos(2 * q - 1);
+                            Quaternion current = m_group.GroupRotation;
+
+                            Quaternion step = Quaternion.Slerp(m_currentFrame.StartRotation, (Quaternion)m_currentFrame.Rotation, complete);
+
+                            float angle = 0;
+
+                            float aa = current.X * current.X + current.Y * current.Y + current.Z * current.Z + current.W * current.W;
+                            float bb = step.X * step.X + step.Y * step.Y + step.Z * step.Z + step.W * step.W;
+                            float aa_bb = aa * bb;
+
+                            if (aa_bb == 0)
+                            {
+                                angle = 0;
+                            }
+                            else
+                            {
+                                float ab = current.X * step.X +
+                                           current.Y * step.Y +
+                                           current.Z * step.Z +
+                                           current.W * step.W;
+                                float q = (ab * ab) / aa_bb;
+
+                                if (q > 1.0f)
+                                {
+                                    angle = 0;
+                                }
+                                else
+                                {
+                                    angle = (float)Math.Acos(2 * q - 1);
+                                }
+                            }
+
+                            if (angle > 0.01f)
+                            {
+                                m_group.UpdateGroupRotationR(step);
+                                //m_group.RootPart.UpdateAngularVelocity(m_currentFrame.AngularVelocity / 2);
+                                update = true;
+                            }
                         }
+
+                        if (update)
+                            m_group.SendGroupRootTerseUpdate();
                     }
 
-                    if (angle > 0.01f)
+                    m_currentFrame.TimeMS -= (int)timerInterval;
+
+                    if (m_currentFrame.TimeMS <= 0)
                     {
-                        m_group.UpdateGroupRotationR(step);
-                        //m_group.RootPart.UpdateAngularVelocity(m_currentFrame.AngularVelocity / 2);
-                        update = true;
+                        m_group.RootPart.Velocity = Vector3.Zero;
+                        m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
+                        m_group.SendGroupRootTerseUpdate();
+
+                        m_frames.RemoveAt(0);
+                        if (m_frames.Count > 0)
+                            m_currentFrame = m_frames[0];
                     }
                 }
-
-                if (update)
-                    m_group.SendGroupRootTerseUpdate();
+                finally
+                {
+                    m_inOnTimer = false;
+                }
             }
+        }
 
-            m_currentFrame.TimeMS -= (int)timerInterval;
-
-            if (m_currentFrame.TimeMS <= 0)
+        public Byte[] Serialize(bool StopMoveTimer)
+        {
+            MemoryStream ms = new MemoryStream();
+            if (StopMoveTimer && m_timer != null)
             {
-                m_group.RootPart.Velocity = Vector3.Zero;
-                m_group.RootPart.UpdateAngularVelocity(Vector3.Zero);
-                m_group.SendGroupRootTerseUpdate();
+                m_skipOnTimer = true;
+                m_timer.Stop();
+            }
 
-                m_frames.RemoveAt(0);
-                if (m_frames.Count > 0)
-                    m_currentFrame = m_frames[0];
+//            lock (m_onTimerLock)
+            {
+                BinaryFormatter fmt = new BinaryFormatter();
+                SceneObjectGroup tmp = m_group;
+                m_group = null;
+                if(!m_selected)
+                    m_serializedPosition = tmp.AbsolutePosition;
+                fmt.Serialize(ms, this);
+                m_group = tmp;
+                return ms.ToArray();
             }
         }
 
-        public Byte[] Serialize()
+        public void StartCrossingCheck()
         {
-            MemoryStream ms = new MemoryStream();
-            m_timer.Stop();
+            m_skipOnTimer = true;
+            if (m_timer != null)
+                m_timer.Stop();
 
-            BinaryFormatter fmt = new BinaryFormatter();
-            SceneObjectGroup tmp = m_group;
-            m_group = null;
-            m_serializedPosition = tmp.AbsolutePosition;
-            fmt.Serialize(ms, this);
-            m_group = tmp;
-            return ms.ToArray();
+            if (m_group.RootPart.Velocity != Vector3.Zero)
+            {
+                m_group.RootPart.Velocity = Vector3.Zero;
+                m_group.SendGroupRootTerseUpdate();
+            }
         }
 
         public void CrossingFailure()
         {
             // The serialization has stopped the timer, so let's wait a moment
             // then retry the crossing. We'll get back here if it fails.
+            // if it is a open border there is no serialization
+            // so make sure timer is actually stopped
+
+            m_group.RootPart.Velocity = Vector3.Zero;
+            m_group.SendGroupRootTerseUpdate();
+
             Util.FireAndForget(delegate (object x)
             {
                 Thread.Sleep(60000);
                 if (m_running)
+                {
+                    m_skipOnTimer = false;
                     m_timer.Start();
+                    m_group.AbsolutePosition = m_nextPosition;
+                }
             });
         }
     }
diff --git a/OpenSim/Region/Framework/Scenes/Scene.cs b/OpenSim/Region/Framework/Scenes/Scene.cs
index 57fcf51..0237021 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.cs
@@ -2346,6 +2346,12 @@ namespace OpenSim.Region.Framework.Scenes
 
             foreach (SceneObjectPart part in partList)
             {
+                if (part.KeyframeMotion != null)
+                {
+                    part.KeyframeMotion.Delete();
+                    part.KeyframeMotion = null;
+                }
+
                 if (part.IsJoint() && ((part.Flags & PrimFlags.Physics) != 0))
                 {
                     PhysicsScene.RequestJointDeletion(part.Name); // FIXME: what if the name changed?
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index eee53d7..65a1da2 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -509,6 +509,9 @@ namespace OpenSim.Region.Framework.Scenes
                         Vector3 newpos = Vector3.Zero;
                         OpenSim.Services.Interfaces.GridRegion destination = null;
 
+                        if (m_rootPart.KeyframeMotion != null)
+                            m_rootPart.KeyframeMotion.StartCrossingCheck();
+
                         bool canCross = true;
                         foreach (ScenePresence av in m_linkedAvatars)
                         {
@@ -551,7 +554,7 @@ namespace OpenSim.Region.Framework.Scenes
                                 av.ParentID = 0;
                             }
 
-//                            m_linkedAvatars.Clear();
+                            //                            m_linkedAvatars.Clear();
                             m_scene.CrossPrimGroupIntoNewRegion(val, this, true);
 
                             // Normalize
@@ -599,11 +602,16 @@ namespace OpenSim.Region.Framework.Scenes
                             avsToCross.Clear();
 
                         }
-                        else if (RootPart.PhysActor != null)
+                        else
                         {
-                            RootPart.PhysActor.CrossingFailure();
-                        }
+                            if (m_rootPart.KeyframeMotion != null)
+                                m_rootPart.KeyframeMotion.CrossingFailure();
 
+                            if (RootPart.PhysActor != null)
+                            {
+                                RootPart.PhysActor.CrossingFailure();
+                            }
+                        }
                         Vector3 oldp = AbsolutePosition;
                         val.X = Util.Clamp<float>(oldp.X, 0.5f, (float)Constants.RegionSize - 0.5f);
                         val.Y = Util.Clamp<float>(oldp.Y, 0.5f, (float)Constants.RegionSize - 0.5f);
@@ -2058,8 +2066,8 @@ namespace OpenSim.Region.Framework.Scenes
                         { 
                             if (part.KeyframeMotion != null)
                             {
-                                part.KeyframeMotion = KeyframeMotion.FromData(backup_group, part.KeyframeMotion.Serialize());
-                                part.KeyframeMotion.UpdateSceneObject(this);
+                                part.KeyframeMotion = KeyframeMotion.FromData(backup_group, part.KeyframeMotion.Serialize(false));
+//                                part.KeyframeMotion.UpdateSceneObject(this);
                             }
                         });
 
@@ -4407,6 +4415,15 @@ namespace OpenSim.Region.Framework.Scenes
         public virtual ISceneObject CloneForNewScene()
         {
             SceneObjectGroup sog = Copy(false);
+            sog.ForEachPart(delegate(SceneObjectPart part)
+            {
+                if (part.KeyframeMotion != null)
+                {
+                    part.KeyframeMotion = KeyframeMotion.FromData(sog, part.KeyframeMotion.Serialize(true));
+                    // this is called later
+//                        part.KeyframeMotion.UpdateSceneObject(this);
+                }
+            });
             sog.IsDeleted = false;
             return sog;
         }
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index ed626d0..bf5fc99 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -769,7 +769,7 @@ namespace OpenSim.Region.Framework.Scenes
             {
                 m_groupPosition = value;
                 PhysicsActor actor = PhysActor;
-                if (actor != null)
+                if (actor != null && ParentGroup.Scene.PhysicsScene != null)
                 {
                     try
                     {
@@ -3408,6 +3408,9 @@ namespace OpenSim.Region.Framework.Scenes
         /// </summary>
         public void SendTerseUpdateToAllClients()
         {
+            if (ParentGroup == null || ParentGroup.Scene == null)
+                return;
+
             ParentGroup.Scene.ForEachClient(delegate(IClientAPI client)
             {
                 SendTerseUpdateToClient(client);
diff --git a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
index 134bd9d..1c75607 100644
--- a/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
+++ b/OpenSim/Region/Framework/Scenes/Serialization/SceneObjectSerializer.cs
@@ -1241,7 +1241,7 @@ namespace OpenSim.Region.Framework.Scenes.Serialization
 
             if (sog.RootPart.KeyframeMotion != null)
             {
-                Byte[] data = sog.RootPart.KeyframeMotion.Serialize();
+                Byte[] data = sog.RootPart.KeyframeMotion.Serialize(true);               
 
                 writer.WriteStartElement(String.Empty, "KeyframeMotion", String.Empty);
                 writer.WriteBase64(data, 0, data.Length);
diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index d8ef772..207d062 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -12963,7 +12963,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if (frames.Data.Length > 0) // We are getting a new motion
             {
                 if (group.RootPart.KeyframeMotion != null)
-                    group.RootPart.KeyframeMotion.Stop();
+                    group.RootPart.KeyframeMotion.Delete();
                 group.RootPart.KeyframeMotion = null;
 
                 int idx = 0;