Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7d708d0 (LWP 1965)] 0x00000000 in ?? () (gdb) bt #0 0x00000000 in ?? () #1 0xa795ee0f in delete_framebuffer_cb (id=1, data=0xa7b1e200, userData=0x84b72d8) at main/context.c:655 #2 0xa7980d04 in _mesa_HashDeleteAll (table=0x8415bf8, callback=0xa795edf6 , userData=0x84b72d8) at main/hash.c:275 #3 0xa795f3f6 in free_shared_state (ctx=0x84b72d8, ss=0x831b618) at main/context.c:723 #4 0xa7960213 in _mesa_free_context_data (ctx=0x84b72d8) at main/context.c:1260 #5 0xa793d0f1 in intelDestroyContext (driContextPriv=0x83a0250) at intel_context.c:520 #6 0xa791a050 in driDestroyContext (context=0x831b5a4) at ../common/dri_util.c:559 #7 0xb7d5e4c3 in __glXDRIcontextDestroy (baseContext=0x831b548) at glxdri.c:253 #8 0xb7d28104 in __glXFreeContext (cx=0x831b548) at glxext.c:139 #9 0xb7d28237 in ContextGone (cx=0xa7b1e200, id=48234502) at glxext.c:97 #10 0x080738c2 in FreeClientResources (client=0x83e1bd0) at resource.c:835 #11 0x08084a48 in CloseDownClient (client=0x83e1bd0) at dispatch.c:3629 #12 0x0808ac60 in Dispatch () at dispatch.c:513 #13 0x08072155 in main (argc=9, argv=0xbfcfa144, envp=Cannot access memory at address 0x7b5 ) at main.c:454 (gdb) up #1 0xa795ee0f in delete_framebuffer_cb (id=1, data=0xa7b1e200, userData=0x84b72d8) at main/context.c:655 655 fb->Delete(fb); (gdb) print (struct gl_framebuffer)data $3 = {Mutex = {__data = {__lock = -1481514496, __count = 139162328, __owner = -1482698479, __kind = 137778872, __nusers = 138505208, { __spins = 2, __list = {__next = 0x2}}}, __size = "\000ⱧØrK\b\021Ñ\237§¸V6\bøkA\b\002\000\000", __align = -1481514496}, Name = 2813390836, RefCount = 137475608, DeletePending = 216 'Ø', Visual = {next = 0xbfcf9ee8, rgbMode = 246 'ö', floatMode = 243 'ó', colorIndexMode = 149 '\225', doubleBufferMode = 138501112, stereoMode = 2811620854, haveAccumBuffer = 216 'Ø', haveDepthBuffer = 114 'r', haveStencilBuffer = 75 'K', redBits = -1481576460, greenBits = 139162328, blueBits = 139162328, alphaBits = -1076912376, redMask = 2811626003, greenMask = 137475608, blueMask = 138527288, alphaMask = 3218054920, rgbBits = -1483615062, indexBits = -1481576460, accumRedBits = 139162328, accumGreenBits = -1076912328, accumBlueBits = -1483484943, accumAlphaBits = 139162328, depthBits = 56, stencilBits = -1076912280, numAuxBuffers = -1210721738, level = 0, pixmapMode = 0, visualID = 1, visualType = -1481576460, visualRating = 138019408, transparentPixel = 56, transparentRed = -1076912296, transparentGreen = -1483628464, transparentBlue = 138019408, transparentAlpha = -1209493892, transparentIndex = 142165248, sampleBuffers = 136052724, samples = -1210662924, drawableType = 137475400, renderType = -1076912264, xRenderable = -1210719037, fbconfigID = 137475492, maxPbufferWidth = 56, maxPbufferHeight = -1076912264, maxPbufferPixels = -1210942612, optimalPbufferWidth = -1210662924, optimalPbufferHeight = 137475400, visualSelectGroup = -1076912232, swapMethod = -1210941180, screen = 137475400, bindToTextureRgb = -1209384672, bindToTextureRgba = 142165304, bindToMipmapTexture = 136052724, bindToTextureTargets = -1210662924, yInverted = 137874504}, Initialized = 168 '¨', Width = 3084026423, Height = 137475400, _Xmin = 136052724, _Xmax = -1076912168, _Ymin = 134691010, _Ymax = 137475400, _DepthMax = 48234502, _DepthMaxF = -1.62207127, _MRD = 4.69444873e-34, _Status = 136089984, Attachment = {{Type = 142148400, Complete = 7 '\a', Renderbuffer = 0x81bfff4, Texture = 0x1c, TextureLevel = 8, CubeMapFace = 3218055176, Zoffset = 134761032}, { Type = 138288080, Complete = 240 'ð', Renderbuffer = 0x1000000, Texture = 0xffffffff, TextureLevel = 138288080, CubeMapFace = 0, Zoffset = 0}, {Type = 136052724, Complete = 248 'ø', Renderbuffer = 0x83e1bd0, Texture = 0xbfcfa058, TextureLevel = 134786144, CubeMapFace = 138288080, Zoffset = 0}, { Type = 0, Complete = 81 'Q', Renderbuffer = 0x3, Texture = 0x82ad790, TextureLevel = 39845969, CubeMapFace = 0, Zoffset = 740}, {Type = 40, Complete = 0 '\0', Renderbuffer = 0x17, Texture = 0x82ad794, TextureLevel = 0, CubeMapFace = 0, Zoffset = 136052724}, {Type = 1, Complete = 40 '(', Renderbuffer = 0xbfcfa0a8, Texture = 0x8072155, TextureLevel = 2, CubeMapFace = 0, Zoffset = 136277320}, { Type = 3218055316, Complete = 248 'ø', Renderbuffer = 0xd, Texture = 0x81ed98c, TextureLevel = 136239500, CubeMapFace = 3218055492, Zoffset = 9}, {Type = 3218055320, Complete = 0 '\0', Renderbuffer = 0x1, Texture = 0xbfcfa16c, TextureLevel = 3218055360, CubeMapFace = 3085578228, Zoffset = 3086347424}, {Type = 0, Complete = 24 '\030', Renderbuffer = 0xb7d88400, Texture = 0xb7f5eca0, TextureLevel = 135959008, CubeMapFace = 3218055448, Zoffset = 3084420096}, {Type = 9, Complete = 68 'D', Renderbuffer = 0xbfcfa16c, Texture = 0xb7f5f810, TextureLevel = 0, CubeMapFace = 1, Zoffset = 1}, {Type = 0, Complete = 244 'ô', Renderbuffer = 0xb7f5eca0, Texture = 0x0, TextureLevel = 3218055448, CubeMapFace = 3804250632, Zoffset = 3431352344}, {Type = 0, Complete = 0 '\0', Renderbuffer = 0x0, Texture = 0xb7f57310, TextureLevel = 3084419885, CubeMapFace = 3086348228, Zoffset = 9}, { Type = 134681744, Complete = 0 '\0', Renderbuffer = 0x80714b1, Texture = 0x8071cc0, TextureLevel = 9, CubeMapFace = 3218055492, Zoffset = 135959008}, {Type = 135958992, Complete = 80 'P', Renderbuffer = 0xbfcfa13c, Texture = 0xb7f5ac37, TextureLevel = 9, CubeMapFace = 3218056686, Zoffset = 3218056697}, {Type = 3218056700, Complete = 3 '\003', Renderbuffer = 0xbfcfa605, Texture = 0xbfcfa60b, TextureLevel = 3218056733, CubeMapFace = 3218056743, Zoffset = 3218056747}, {Type = 0, Complete = 47 '/', Renderbuffer = 0xbfcfa734, Texture = 0xbfcfa766, TextureLevel = 3218057083, CubeMapFace = 3218057094, Zoffset = 3218057110}, {Type = 3218057139, Complete = 203 'Ë', Renderbuffer = 0xbfcfa993, Texture = 0xbfcfa9b1, TextureLevel = 3218057690, CubeMapFace = 3218057721, Zoffset = 3218057758}, {Type = 3218057772, Complete = 71 'G', Renderbuffer = 0xbfcfaa7c, Texture = 0xbfcfaa91, TextureLevel = 3218058032, CubeMapFace = 3218058078, Zoffset = 3218058113}, {Type = 3218058358, Complete = 151 '\227', Renderbuffer = 0xbfcfaca2, Texture = 0xbfcfaca8, TextureLevel = 3218058455, CubeMapFace = 3218058468, Zoffset = 3218058521}}, ColorDrawBuffer = {3218058541, 3218058553, 3218058565, 3218058600}, ColorReadBuffer = 3218058646, _ColorDrawBufferMask = {3218058654, 3218058683, 3218058722, 3218058793}, _ColorReadBufferIndex = -1076908482, _NumColorDrawBuffers = {3218058825, 3218058837, 3218058849, 3218058914}, _ColorDrawBuffers = {{0xbfcfaebb, 0xbfcfaf3a, 0xbfcfaf4d, 0xbfcfaf65}, {0xbfcfaf81, 0xbfcfaf9a, 0xbfcfafb4, 0xbfcfafbf}, {0xbfcfafc9, 0xbfcfafe6, 0x0, 0x20}, { 0xffffe400, 0x21, 0xffffe000, 0x10}}, _ColorReadBuffer = 0xbfe9fbff, _DepthBuffer = 0x6, _StencilBuffer = 0x1000, Delete = 0x11} (gdb) print ((struct gl_framebuffer)data)->Delete $4 = (void (*)(struct gl_framebuffer *)) 0x11