Merge branch 'careminster-presence-refactor' of ssh://3dhosting.de/var/git/careminster into careminster-presence-refactor

OpenSim/Data/SQLite/SQLiteSimulationData.cs

@@ -669,10 +669,6 @@ namespace OpenSim.Data.SQLite
             }
         }
 
-        /// <summary>
-        ///
-        /// </summary>
-        /// <param name="globalID"></param>
         public void RemoveLandObject(UUID globalID)
         {
             lock (ds)
@@ -698,7 +694,6 @@ namespace OpenSim.Data.SQLite
                 if (landRow != null)
                 {
                     landRow.Delete();
-                    land.Rows.Remove(landRow);
                 }
                 List<DataRow> rowsToDelete = new List<DataRow>();
                 foreach (DataRow rowToCheck in landaccesslist.Rows)
@@ -709,7 +704,6 @@ namespace OpenSim.Data.SQLite
                 for (int iter = 0; iter < rowsToDelete.Count; iter++)
                 {
                     rowsToDelete[iter].Delete();
-                    landaccesslist.Rows.Remove(rowsToDelete[iter]);
                 }
             }
             Commit();

OpenSim/Region/Application/OpenSim.cs

@@ -1030,11 +1030,12 @@ namespace OpenSim
                         delegate(Scene scene)
                             {
                                 MainConsole.Instance.Output(String.Format(
-                                           "Region Name: {0}, Region XLoc: {1}, Region YLoc: {2}, Region Port: {3}",
+                                           "Region Name: {0}, Region XLoc: {1}, Region YLoc: {2}, Region Port: {3}, Estate Name: {4}",
                                            scene.RegionInfo.RegionName,
                                            scene.RegionInfo.RegionLocX,
                                            scene.RegionInfo.RegionLocY,
-                                           scene.RegionInfo.InternalEndPoint.Port));
+                                           scene.RegionInfo.InternalEndPoint.Port,
+                                           scene.RegionInfo.EstateSettings.EstateName));
                             });
                     break;
 

OpenSim/Region/ClientStack/LindenUDP/LLUDPServer.cs

@@ -27,6 +27,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Net;
 using System.Net.Sockets;
@@ -639,10 +640,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             {
                 object[] array = new object[] { buffer, packet };
 
-                if (m_asyncPacketHandling)
+                Util.FireAndForget(HandleUseCircuitCode, array);
-                    Util.FireAndForget(HandleUseCircuitCode, array);
-                else
-                    HandleUseCircuitCode(array);
 
                 return;
             }
@@ -859,10 +857,10 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             // Begin the process of adding the client to the simulator
             AddNewClient((UseCircuitCodePacket)packet, remoteEndPoint);
 
-            // Acknowledge the UseCircuitCode packet
+            // Send ack
             SendAckImmediate(remoteEndPoint, packet.Header.Sequence);
-            
+
-//            m_log.DebugFormat(
+            //            m_log.DebugFormat(
 //                "[LLUDPSERVER]: Handling UseCircuitCode request from {0} took {1}ms", 
 //                buffer.RemoteEndPoint, (DateTime.Now - startTime).Milliseconds);
         }
@@ -926,25 +924,32 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
         protected virtual void AddClient(uint circuitCode, UUID agentID, UUID sessionID, IPEndPoint remoteEndPoint, AuthenticateResponse sessionInfo)
         {
-            // Create the LLUDPClient
+            // In priciple there shouldn't be more than one thread here, ever.
-            LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO);
+            // But in case that happens, we need to synchronize this piece of code
-            IClientAPI existingClient;
+            // because it's too important
-
+            lock (this) 
-            if (!m_scene.TryGetClient(agentID, out existingClient))
             {
-                // Create the LLClientView
+                IClientAPI existingClient;
-                LLClientView client = new LLClientView(remoteEndPoint, m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode);
-                client.OnLogout += LogoutHandler;
 
-                client.DisableFacelights = m_disableFacelights;
+                if (!m_scene.TryGetClient(agentID, out existingClient))
+                {
+                    // Create the LLUDPClient
+                    LLUDPClient udpClient = new LLUDPClient(this, ThrottleRates, m_throttle, circuitCode, agentID, remoteEndPoint, m_defaultRTO, m_maxRTO);
+                    // Create the LLClientView
+                    LLClientView client = new LLClientView(remoteEndPoint, m_scene, this, udpClient, sessionInfo, agentID, sessionID, circuitCode);
+                    client.OnLogout += LogoutHandler;
 
-                // Start the IClientAPI
+                    client.DisableFacelights = m_disableFacelights;
-                client.Start();
+
-            }
+                    // Start the IClientAPI
-            else
+                    client.Start();
-            {
+
-                m_log.WarnFormat("[LLUDPSERVER]: Ignoring a repeated UseCircuitCode from {0} at {1} for circuit {2}",
+                }
-                    udpClient.AgentID, remoteEndPoint, circuitCode);
+                else
+                {
+                    m_log.WarnFormat("[LLUDPSERVER]: Ignoring a repeated UseCircuitCode from {0} at {1} for circuit {2}",
+                        existingClient.AgentId, remoteEndPoint, circuitCode);
+                }
             }
         }
 
@@ -1055,6 +1060,12 @@ namespace OpenSim.Region.ClientStack.LindenUDP
 
                     #endregion Update Timers
 
+                    // Use this for emergency monitoring -- bug hunting
+                    //if (m_scene.EmergencyMonitoring)
+                    //    clientPacketHandler = MonitoredClientOutgoingPacketHandler;
+                    //else
+                    //    clientPacketHandler = ClientOutgoingPacketHandler;
+
                     // Handle outgoing packets, resends, acknowledgements, and pings for each
                     // client. m_packetSent will be set to true if a packet is sent
                     m_scene.ForEachClient(clientPacketHandler);
@@ -1070,6 +1081,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 {
                     m_log.Error("[LLUDPSERVER]: OutgoingPacketHandler loop threw an exception: " + ex.Message, ex);
                 }
+
             }
 
             Watchdog.RemoveThread();
@@ -1107,6 +1119,112 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             }
         }
 
+        #region Emergency Monitoring
+        // Alternative packet handler fuull of instrumentation
+        // Handy for hunting bugs
+        private Stopwatch watch1 = new Stopwatch();
+        private Stopwatch watch2 = new Stopwatch();
+
+        private float avgProcessingTicks = 0;
+        private float avgResendUnackedTicks = 0;
+        private float avgSendAcksTicks = 0;
+        private float avgSendPingTicks = 0;
+        private float avgDequeueTicks = 0;
+        private long nticks = 0;
+        private long nticksUnack = 0;
+        private long nticksAck = 0;
+        private long nticksPing = 0;
+        private int npacksSent = 0;
+        private int npackNotSent = 0;
+
+        private void MonitoredClientOutgoingPacketHandler(IClientAPI client)
+        {
+            nticks++;
+            watch1.Start();
+            try
+            {
+                if (client is LLClientView)
+                {
+                    LLUDPClient udpClient = ((LLClientView)client).UDPClient;
+
+                    if (udpClient.IsConnected)
+                    {
+                        if (m_resendUnacked)
+                        {
+                            nticksUnack++;
+                            watch2.Start();
+
+                            ResendUnacked(udpClient);
+
+                            watch2.Stop();
+                            avgResendUnackedTicks = (nticksUnack - 1)/(float)nticksUnack * avgResendUnackedTicks + (watch2.ElapsedTicks / (float)nticksUnack);
+                            watch2.Reset();
+                        }
+
+                        if (m_sendAcks)
+                        {
+                            nticksAck++;
+                            watch2.Start();
+                            
+                            SendAcks(udpClient);
+
+                            watch2.Stop();
+                            avgSendAcksTicks = (nticksAck - 1) / (float)nticksAck * avgSendAcksTicks + (watch2.ElapsedTicks / (float)nticksAck);
+                            watch2.Reset();
+                        }
+
+                        if (m_sendPing)
+                        {
+                            nticksPing++;
+                            watch2.Start();
+                            
+                            SendPing(udpClient);
+
+                            watch2.Stop();
+                            avgSendPingTicks = (nticksPing - 1) / (float)nticksPing * avgSendPingTicks + (watch2.ElapsedTicks / (float)nticksPing);
+                            watch2.Reset();
+                        }
+
+                        watch2.Start();
+                        // Dequeue any outgoing packets that are within the throttle limits
+                        if (udpClient.DequeueOutgoing())
+                        {
+                            m_packetSent = true;
+                            npacksSent++;
+                        }
+                        else
+                            npackNotSent++;
+
+                        watch2.Stop();
+                        avgDequeueTicks = (nticks - 1) / (float)nticks * avgDequeueTicks + (watch2.ElapsedTicks / (float)nticks);
+                        watch2.Reset();
+
+                    }
+                    else
+                        m_log.WarnFormat("[LLUDPSERVER]: Client is not connected");
+                }
+            }
+            catch (Exception ex)
+            {
+                m_log.Error("[LLUDPSERVER]: OutgoingPacketHandler iteration for " + client.Name +
+                    " threw an exception: " + ex.Message, ex);
+            }
+            watch1.Stop();
+            avgProcessingTicks = (nticks - 1) / (float)nticks * avgProcessingTicks + (watch1.ElapsedTicks / (float)nticks);
+            watch1.Reset();
+
+            // reuse this -- it's every ~100ms
+            if (m_scene.EmergencyMonitoring && nticks % 100 == 0)
+            {
+                m_log.InfoFormat("[LLUDPSERVER]: avg processing ticks: {0} avg unacked: {1} avg acks: {2} avg ping: {3} avg dequeue: {4} (TickCountRes: {5} sent: {6} notsent: {7})", 
+                    avgProcessingTicks, avgResendUnackedTicks, avgSendAcksTicks, avgSendPingTicks, avgDequeueTicks, TickCountResolution, npacksSent, npackNotSent);
+                npackNotSent = npacksSent = 0;
+            }
+
+        }
+
+        #endregion 
+
         private void ProcessInPacket(object state)
         {
             IncomingPacket incomingPacket = (IncomingPacket)state;

OpenSim/Region/ClientStack/LindenUDP/UnackedPacketCollection.cs

@@ -141,46 +141,35 @@ namespace OpenSim.Region.ClientStack.LindenUDP
         private void ProcessQueues()
         {
             // Process all the pending adds
-
             OutgoingPacket pendingAdd;
-            if (m_pendingAdds != null)
+            while (m_pendingAdds.TryDequeue(out pendingAdd))
-            {
+                if (pendingAdd != null)
-                while (m_pendingAdds.TryDequeue(out pendingAdd))
+                    m_packets[pendingAdd.SequenceNumber] = pendingAdd;
-                {
-                    if (pendingAdd != null && m_packets != null)
-                    {
-                        m_packets[pendingAdd.SequenceNumber] = pendingAdd;
-                    }
-                }
-            }
             
             // Process all the pending removes, including updating statistics and round-trip times
             PendingAck pendingRemove;
             OutgoingPacket ackedPacket;
-            if (m_pendingRemoves != null)
+            while (m_pendingRemoves.TryDequeue(out pendingRemove))
             {
-                while (m_pendingRemoves.TryDequeue(out pendingRemove))
+                if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket))
                 {
-                    if (m_pendingRemoves != null && m_packets != null)
+                    if (ackedPacket != null)
                     {
-                        if (m_packets.TryGetValue(pendingRemove.SequenceNumber, out ackedPacket))
+                        m_packets.Remove(pendingRemove.SequenceNumber);
+
+                        // Update stats
+                        Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength);
+
+                        if (!pendingRemove.FromResend)
                         {
-                            m_packets.Remove(pendingRemove.SequenceNumber);
+                            // Calculate the round-trip time for this packet and its ACK
-
+                            int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount;
-                            // Update stats
+                            if (rtt > 0)
-                            Interlocked.Add(ref ackedPacket.Client.UnackedBytes, -ackedPacket.Buffer.DataLength);
+                                ackedPacket.Client.UpdateRoundTrip(rtt);
-
-                            if (!pendingRemove.FromResend)
-                            {
-                                // Calculate the round-trip time for this packet and its ACK
-                                int rtt = pendingRemove.RemoveTime - ackedPacket.TickCount;
-                                if (rtt > 0)
-                                    ackedPacket.Client.UpdateRoundTrip(rtt);
-                            }
                         }
                     }
                 }
             }
         }
     }
-}
+}

OpenSim/Region/CoreModules/ServiceConnectorsOut/Authorization/RemoteAuthorizationServiceConnector.cs

@@ -139,7 +139,7 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Authorization
             
             if (scene != null)
             {
-                UserAccount account = scene.UserAccountService.GetUserAccount(UUID.Zero, userID);
+                UserAccount account = scene.UserAccountService.GetUserAccount(UUID.Zero, new UUID(userID));
                 isAuthorized = IsAuthorizedForRegion(userID, account.FirstName, account.LastName,
                     account.Email, scene.RegionInfo.RegionName, regionID, out message);
             }

OpenSim/Region/CoreModules/World/Estate/EstateManagementCommands.cs

@@ -0,0 +1,156 @@
+/*
+ * 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;
+using System.IO;
+using System.Reflection;
+using System.Security;
+using log4net;
+using Nini.Config;
+using OpenMetaverse;
+using OpenSim.Framework;
+using OpenSim.Region.Framework.Interfaces;
+using OpenSim.Region.Framework.Scenes;
+
+namespace OpenSim.Region.CoreModules.World.Estate
+{
+    public class EstateManagementCommands
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        
+        protected EstateManagementModule m_module;
+        
+        public EstateManagementCommands(EstateManagementModule module)
+        {
+            m_module = module;
+        }
+        
+        public void Initialise()
+        {            
+            m_module.Scene.AddCommand(this, "set terrain texture",
+                               "set terrain texture <number> <uuid> [<x>] [<y>]",
+                               "Sets the terrain <number> to <uuid>, if <x> or <y> are specified, it will only " +
+                               "set it on regions with a matching coordinate. Specify -1 in <x> or <y> to wildcard" +
+                               " that coordinate.",
+                               consoleSetTerrainTexture);
+
+            m_module.Scene.AddCommand(this, "set terrain heights",
+                               "set terrain heights <corner> <min> <max> [<x>] [<y>]",
+                               "Sets the terrain texture heights on corner #<corner> to <min>/<max>, if <x> or <y> are specified, it will only " +
+                               "set it on regions with a matching coordinate. Specify -1 in <x> or <y> to wildcard" +
+                               " that coordinate. Corner # SW = 0, NW = 1, SE = 2, NE = 3.",
+                               consoleSetTerrainHeights);            
+        }          
+        
+        protected void consoleSetTerrainTexture(string module, string[] args)
+        {
+            string num = args[3];
+            string uuid = args[4];
+            int x = (args.Length > 5 ? int.Parse(args[5]) : -1);
+            int y = (args.Length > 6 ? int.Parse(args[6]) : -1);
+
+            if (x == -1 || m_module.Scene.RegionInfo.RegionLocX == x)
+            {
+                if (y == -1 || m_module.Scene.RegionInfo.RegionLocY == y)
+                {
+                    int corner = int.Parse(num);
+                    UUID texture = UUID.Parse(uuid);
+
+                    m_log.Debug("[ESTATEMODULE]: Setting terrain textures for " + m_module.Scene.RegionInfo.RegionName +
+                                string.Format(" (C#{0} = {1})", corner, texture));
+
+                    switch (corner)
+                    {
+                        case 0:
+                            m_module.Scene.RegionInfo.RegionSettings.TerrainTexture1 = texture;
+                            break;
+                        case 1:
+                            m_module.Scene.RegionInfo.RegionSettings.TerrainTexture2 = texture;
+                            break;
+                        case 2:
+                            m_module.Scene.RegionInfo.RegionSettings.TerrainTexture3 = texture;
+                            break;
+                        case 3:
+                            m_module.Scene.RegionInfo.RegionSettings.TerrainTexture4 = texture;
+                            break;
+                    }
+                    
+                    m_module.Scene.RegionInfo.RegionSettings.Save();
+                    m_module.TriggerRegionInfoChange();
+                    m_module.sendRegionInfoPacketToAll();
+                }
+            }
+        }
+ 
+        protected void consoleSetTerrainHeights(string module, string[] args)
+        {
+            string num = args[3];
+            string min = args[4];
+            string max = args[5];
+            int x = (args.Length > 6 ? int.Parse(args[6]) : -1);
+            int y = (args.Length > 7 ? int.Parse(args[7]) : -1);
+
+            if (x == -1 || m_module.Scene.RegionInfo.RegionLocX == x)
+            {
+                if (y == -1 || m_module.Scene.RegionInfo.RegionLocY == y)
+                {
+                    int corner = int.Parse(num);
+                    float lowValue = float.Parse(min, Culture.NumberFormatInfo);
+                    float highValue = float.Parse(max, Culture.NumberFormatInfo);
+
+                    m_log.Debug("[ESTATEMODULE]: Setting terrain heights " + m_module.Scene.RegionInfo.RegionName +
+                                string.Format(" (C{0}, {1}-{2}", corner, lowValue, highValue));
+
+                    switch (corner)
+                    {
+                        case 0:
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation1SW = lowValue;
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation2SW = highValue;
+                            break;
+                        case 1:
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation1NW = lowValue;
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation2NW = highValue;
+                            break;
+                        case 2:
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation1SE = lowValue;
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation2SE = highValue;
+                            break;
+                        case 3:
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation1NE = lowValue;
+                            m_module.Scene.RegionInfo.RegionSettings.Elevation2NE = highValue;
+                            break;
+                    }
+                    
+                    m_module.Scene.RegionInfo.RegionSettings.Save();
+                    m_module.TriggerRegionInfoChange();
+                    m_module.sendRegionHandshakeToAll();
+                }
+            }
+        }     
+    }
+}

OpenSim/Region/CoreModules/World/WorldMap/WorldMapModule.cs

@@ -764,10 +764,11 @@ namespace OpenSim.Region.CoreModules.World.WorldMap
 
             if (!responseMap.ContainsKey(itemtype.ToString())) // remote sim doesnt have the stated region handle
             {
-                if (!m_blacklistedregions.ContainsKey(regionhandle))
+                m_log.DebugFormat("[WORLD MAP]: Remote sim does not have the stated region. Blacklisting.");
+                lock (m_blacklistedregions)
                 {
-                    m_log.DebugFormat("[WORLD MAP]: Remote sim does not have the stated region. Blacklisting.");
+                    if (!m_blacklistedregions.ContainsKey(regionhandle))
-                    m_blacklistedregions.Add(regionhandle, Environment.TickCount);
+                        m_blacklistedregions.Add(regionhandle, Environment.TickCount);
                 }
             }
 

OpenSim/Region/Framework/Scenes/Scene.cs

@@ -64,6 +64,8 @@ namespace OpenSim.Region.Framework.Scenes
 
         #region Fields
 
+        public bool EmergencyMonitoring = false;
+
         public SynchronizeSceneHandler SynchronizeScene;
         public SimStatsReporter StatsReporter;
         public List<Border> NorthBorders = new List<Border>();

OpenSim/Region/OptionalModules/Agent/UDP/Linden/LindenUDPInfoModule.cs

@@ -95,7 +95,15 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
                 "Show throttle settings for each client and for the server overall", 
                 "Without the 'full' option, only root agents are shown."
                   + "  With the 'full' option child agents are also shown.",                                          
-                ShowThrottlesReport);                             
+                ShowThrottlesReport);
+
+            scene.AddCommand(
+                this, "emergency-monitoring",
+                "Go on/off emergency monitoring mode",
+                "Go on/off emergency monitoring mode",
+                "Go on/off emergency monitoring mode",
+                EmergencyMonitoring);                             
+
         }
         
         public void RemoveRegion(Scene scene)
@@ -120,7 +128,25 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
         {
             MainConsole.Instance.Output(GetThrottlesReport(cmd));
         }
-        
+
+        protected void EmergencyMonitoring(string module, string[] cmd)
+        {
+            bool mode = true;
+            if (cmd.Length == 1 || (cmd.Length > 1 && cmd[1] == "on"))
+            {
+                mode = true;
+                MainConsole.Instance.Output("Emergency Monitoring ON");
+            }
+            else
+            {
+                mode = false;
+                MainConsole.Instance.Output("Emergency Monitoring OFF");
+            }
+
+            foreach (Scene s in m_scenes.Values)
+                s.EmergencyMonitoring = mode;
+        }
+
         protected string GetColumnEntry(string entry, int maxLength, int columnPadding)
         {                       
             return string.Format(
@@ -335,7 +361,7 @@ namespace OpenSim.Region.CoreModules.UDP.Linden
             ThrottleRates throttleRates = udpServer.ThrottleRates;
             report.AppendFormat(
                 "{0,7} {1,8} {2,7} {3,7} {4,7} {5,7} {6,9} {7,7}",
-                "n/a",
+                (throttleRates.Total * 8) / 1000,
                 (throttleRates.ResendLimit * 8) / 1000,
                 (throttleRates.LandLimit * 8) / 1000,
                 (throttleRates.WindLimit * 8) / 1000,

OpenSim/Server/Handlers/Simulation/AgentHandlers.cs

@@ -205,6 +205,11 @@ namespace OpenSim.Server.Handlers.Simulation
 
             // We're behind a proxy
             Hashtable headers = (Hashtable)request["headers"];
+
+            //// DEBUG
+            //foreach (object o in headers.Keys)
+            //    m_log.DebugFormat("XXX {0} = {1}", o.ToString(), (headers[o] == null? "null" : headers[o].ToString()));
+
             string xff = "X-Forwarded-For";
             if (headers.ContainsKey(xff.ToLower()))
                 xff = xff.ToLower();

bin/OpenSim.ini.example

@@ -306,6 +306,9 @@
 [ODEPhysicsSettings]
     ;# {mesh_sculpted_prim} {[Startup]physics:OpenDynamicsEngine} {Mesh sculpties so they collide as they look?} {true false} true
     ;; Do we want to mesh sculpted prim to collide like they look?
+    ;; If you are seeing sculpt texture decode problems 
+    ;; (messages such as "Decoded image with unhandled number of components: 0 shortly followed by a physcs exception")
+    ;; then you might want to try setting this to false.
     ; mesh_sculpted_prim = true
 
     ;# {use_NINJA_physics_joints} {[Startup]physics:OpenDynamicsEngine} {Use jointed (NINJA) physics?} {true false} false