(gdb) bt full
#0  0x081e5463 in Extents::expandToPoint (this=0xbfffe430, point=0x83f5000) at Extents.h:128
No locals.
#1  0x081ed071 in MeshDrawInfo::serverSetup (this=0x8360480, mesh=0x83b5610) at MeshDrawInfo.cxx:390
        v = (const float *) 0x83f5000
        idx = 0
        array = (short unsigned int *) 0x8395800
        drawCmd = (DrawCmd &) @0x40722870: {drawMode = 5, count = 4, indices = 0x8395800, indexType = 5123, 
  minIndex = 21424, maxIndex = 21426}
        cmd = 10159
        exts = {mins = {-2513.6001, -2514.3999, -2514.6001}, maxs = {36.7904358, 60.0949211, 40.7177162}}
        drawSet = (DrawSet &) @0x83b51f8: {count = 16729, cmds = 0x406e7008, material = 0x0, wantList = true, sphere = {
    3.40282347e+38, 3.40282347e+38, 3.40282347e+38, 3.40282347e+38}, triangleCount = 0}
        calcSetCenter = true
        calcSetRadius = true
        set = 0
        drawLod = (DrawLod &) @0x83b55a0: {count = 1, sets = 0x83b51f8, lengthPerPixel = 0, triangleCount = 135559243}
        lod = 0
        vCount = 10302
        verts = (float (*)[3]) 0x83b63c0
        tmpExts = {mins = {-37.4980621, -52.5333824, -0.00888300035}, maxs = {36.7904358, 60.0949211, 40.7177162}}
        calcCenter = true
        calcRadius = true
        calcExtents = true
---Type <return> to continue, or q <return> to quit---
#2  0x08162c95 in CustomMesh::writeToGroupDef (this=0x83600c0, groupdef=0x832bc00) at CustomMesh.cxx:228
        xform = {name = {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<No data fields>}, 
      _M_p = 0x835d744 ""}, static _S_empty_rep_storage = {0, 0, 67, 0}}, 
  transforms = {<std::_Vector_base<TransformData, std::allocator<TransformData> >> = {<std::_Vector_alloc_base<TransformData, std::allocator<TransformData>, true>> = {_M_start = 0x0, _M_finish = 0x0, 
        _M_end_of_storage = 0x0}, <No data fields>}, <No data fields>}}
        forcePassable = false
        mesh = (class MeshObstacle *) 0x83b5610
        face_it = {<std::iterator<std::random_access_iterator_tag, CustomMeshFace*, int, CustomMeshFace* const*, CustomMeshFace* const&>> = {<No data fields>}, _M_current = 0x0}
#3  0x08144bd6 in BZWReader::readWorldStream (this=0x83605c0, wlist=@0xbfffec40, groupDef=0x832bc00)
    at BZWReader.cxx:240
        line = 44134
        buffer = "end\000Info\000s: 14469\000\000\000\004\000\000\001?\237!@d\216!@\004\000\000\000\220???????|\225\032@$???????????\000\000\226D\004\000\000\000\030???????\000\000\226D\004\000\000\000\030?????????\021\b\220???\204[\021\b????\000\000\000\000??3\b\000\000\000\000 45468 45453 45469 4\f?2\b??3\b\f?2\b??3\b 454\f?2\b??3\b\001\000\000\000????dI6\b 45471 45446 45471 \000"...
        object = (class WorldFileObject *) 0x83600c0
        newObject = (class WorldFileObject *) 0x0
        fakeObject = (class WorldFileObject * const) 0x1
        worldDef = (GroupDefinition * const) 0x832bc00
        startDef = (GroupDefinition * const) 0x832bc00
        customObject = {static npos = 4294967295, _M_dataplus = {<std::allocator<char>> = {<No data fields>}, 
---Type <return> to continue, or q <return> to quit---
    _M_p = 0x4021ae8c ""}, static _S_empty_rep_storage = {0, 0, 67, 0}}
        customLines = {<std::_Vector_base<std::string, std::allocator<std::string> >> = {<std::_Vector_alloc_base<std::string, std::allocator<std::string>, true>> = {_M_start = 0x0, _M_finish = 0x0, 
      _M_end_of_storage = 0x0}, <No data fields>}, <No data fields>}
        gotWorld = false
        retval = 64
#4  0x0814722d in BZWReader::defineWorldFromFile (this=0x83605c0) at BZWReader.cxx:425
        myWorld = (WorldInfo *) 0x8350e18
        list = {<std::_Vector_base<WorldFileObject*, std::allocator<WorldFileObject*> >> = {<std::_Vector_alloc_base<WorldFileObject*, std::allocator<WorldFileObject*>, true>> = {_M_start = 0x0, _M_finish = 0x0, 
      _M_end_of_storage = 0x0}, <No data fields>}, <No data fields>}
        worldDef = (GroupDefinition *) 0x832bc00
        i = 32
        baseList = (const ObstacleList &) @0x40: Cannot access memory at address 0x40