Something

ODE INTERNAL ERROR 2: invalid operation for locked space in dSpaceAdd()
Stacktrace:

  at (wrapper managed-to-native) Ode.NET.d.SpaceAdd (intptr,intptr) <0x00004>
  at (wrapper managed-to-native) Ode.NET.d.SpaceAdd (intptr,intptr) <0xffffffff>
  at OpenSim.Region.Physics.OdePlugin.OdeScene.createprimspace (int,int) <0x000e2>
  at OpenSim.Region.Physics.OdePlugin.OdeScene.AddPrim (string,OpenSim.Region.Physics.Manager.PhysicsVector,OpenSim.Region.Physics.Manager.PhysicsVector,Axiom.Math.Quaternion,OpenSim.Region.Physics.Manager.IMesh,OpenSim.Framework.PrimitiveBaseShape,bool) <0x00114>
  at OpenSim.Region.Physics.OdePlugin.OdeScene.AddPrimShape (string,OpenSim.Framework.PrimitiveBaseShape,OpenSim.Region.Physics.Manager.PhysicsVector,OpenSim.Region.Physics.Manager.PhysicsVector,Axiom.Math.Quaternion,bool) <0x000a4>
  at OpenSim.Region.Environment.Scenes.Scene.AddRezObject (string,libsecondlife.LLVector3) <0x005ff>
  at OpenSim.Region.Environment.Scenes.Scene.RezObject (OpenSim.Framework.IClientAPI,libsecondlife.LLUUID,libsecondlife.LLVector3) <0x00161>
  at OpenSim.Region.ClientStack.ClientView.ProcessInPacket (libsecondlife.Packets.Packet) <0x00752>
  at OpenSim.Region.ClientStack.ClientView.ClientLoop () <0x00091>
  at OpenSim.Region.ClientStack.ClientView.AuthUser () <0x00250>
  at (wrapper delegate-invoke) System.MulticastDelegate.invoke_void () <0xffffffff>
  at (wrapper runtime-invoke) System.IO.StreamWriter.runtime_invoke_void (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

        mono [0x81ab4d7]
        mono [0x818e960]
        [0xffffe440]
        /lib/i686/cmov/libc.so.6(abort+0x101) [0xb7d51181]
        ./libode.so(dDebug+0x3a) [0xb4d86e3a]
        ./libode.so(dSpaceAdd+0x68) [0xb4d91058]
        [0xb3aaa9a4]
        [0xb3aaa8db]
        [0xb3aaa47d]
        [0xb3aaa2fd]
        [0xb63cbd08]
        [0xb63cb162]
        [0xada2a463]
        [0xada3641a]
        [0xae56c281]
        [0xb6c8f9b8]
        [0xb6cb8a79]
        mono [0x818e75c]
        mono(mono_runtime_invoke+0x29) [0x80b8aa0]
        mono(mono_runtime_delegate_invoke+0x6a) [0x80b9654]
        mono [0x80efc78]
        mono [0x8149305]
        mono [0x8162ee8]
        /lib/i686/cmov/libpthread.so.0 [0xb7e9746b]
        /lib/i686/cmov/libc.so.6(clone+0x5e) [0xb7df872e]