http://paste.ubuntu.com/567438/ (gdb) bt full #0 0x00007ffff51bfb45 in raise () from /lib/libc.so.6 No symbol table info available. #1 0x00007ffff51c3496 in abort () from /lib/libc.so.6 No symbol table info available. #2 0x00007ffff35c5f2a in mozalloc_abort(char const*) () from /usr/lib/firefox-4.0b11/libmozalloc.so No symbol table info available. #3 0x00007ffff6d69d84 in NS_DebugBreak_P () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #4 0x00007ffff6390eea in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #5 0x00007ffff273df97 in _XError (dpy=0x7fffebf50000, rep=0x7fffd18a72b0) at ../../src/XlibInt.c:3103 rtn_val = event = {type = 0, xany = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600}, xkey = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, root = 140737152090112, subwindow = 140736708899504, time = 4224563, x = 0, y = 0, x_root = 0, y_root = 0, state = 3515499984, keycode = 32767, same_screen = -336265216}, xbutton = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, root = 140737152090112, subwindow = 140736708899504, time = 4224563, x = 0, y = 0, x_root = 0, y_root = 0, state = 3515499984, button = 32767, same_screen = -336265216}, xmotion = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, root = 140737152090112, subwindow = 140736708899504, time = 4224563, x = 0, y = 0, x_root = 0, y_root = 0, state = 3515499984, is_hint = -1 '\377', same_screen = -336265216}, xcrossing = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, root = 140737152090112, subwindow = 140736708899504, time = 4224563, x = 0, y = 0, x_root = 0, y_root = 0, mode = -779467312, detail = 32767, same_screen = -336265216, focus = 32767, state = 3515511472}, xfocus = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, mode = -336265216, detail = 32767}, xexpose = { type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, x = -336265216, y = 32767, width = -779455824, height = 32767, count = 4224563}, xgraphicsexpose = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, drawable = 140737137187600, x = -336265216, y = 32767, width = -779455824, height = 32767, count = 4224563, major_code = 0, minor_code = 0}, xnoexpose = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, drawable = 140737137187600, major_code = -336265216, minor_code = 32767}, xvisibility = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, state = -336265216}, xcreatewindow = { type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, parent = 140737137187600, window = 140737152090112, x = -779455824, y = 32767, width = 4224563, height = 0, border_width = 0, override_redirect = 0}, xdestroywindow = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112}, xunmap = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, from_configure = -779455824}, xmap = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, override_redirect = -779455824}, xmaprequest = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, parent = 140737137187600, window = 140737152090112}, xreparent = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, parent = 140736708899504, x = 4224563, y = 0, override_redirect = 0}, xconfigure = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, x = -779455824, y = 32767, width = 4224563, height = 0, border_width = 0, above = 0, override_redirect = -779467312}, xgravity = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, x = -779455824, y = 32767}, xresizerequest = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, width = -336265216, height = 32767}, xconfigurerequest = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, parent = 140737137187600, window = 140737152090112, x = -779455824, y = 32767, width = 4224563, height = 0, border_width = 0, above = 0, detail = -779467312, value_mask = 140737152090112}, xcirculate = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, event = 140737137187600, window = 140737152090112, place = -779455824}, xcirculaterequest = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, parent = 140737137187600, window = 140737152090112, place = -779455824}, xproperty = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, atom = 140737152090112, time = 140736708899504, state = 4224563}, xselectionclear = { type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, selection = 140737152090112, time = 140736708899504}, xselectionrequest = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, owner = 140737137187600, requestor = 140737152090112, selection = 140736708899504, target = 4224563, property = 0, time = 0}, xselection = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, requestor = 140737137187600, selection = 140737152090112, target = 140736708899504, property = 4224563, time = 0}, xcolormap = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, colormap = 140737152090112, new = -779455824, state = 32767}, xclient = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, message_type = 140737152090112, format = -779455824, data = {b = "3v@", '\000' , s = {30259, 64, 0, 0, 0, 0, 0, 0, 0, 0}, l = {4224563, 0, 0, 140736708888016, 140737152090112}}}, xmapping = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, request = -336265216, first_keycode = 32767, count = -779455824}, xerror = {type = 0, display = 0x7fffebf50000, resourceid = 85989068, serial = 27157, error_code = 16 '\020', request_code = 155 '\233', minor_code = 17 '\021'}, xkeymap = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, window = 140737137187600, key_vector = "\000\000\365\353\377\177\000\000\260r\212\321\377\177\000\000\063v@", '\000' }, xgeneric = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, extension = -351167728, evtype = 32767}, xcookie = {type = 0, serial = 140737152090112, send_event = 85989068, display = 0x6a15, extension = -351167728, evtype = 32767, cookie = 3958702080, data = 0x7fffd18a72b0}, pad = {140733193388032, 140737152090112, 85989068, 27157, 140737137187600, 140737152090112, 140736708899504, 4224563, 0, 0, 140736708888016, 140737152090112, 140736708899504, 1, 27157, 140737261095246, 27156, 0, 140737488337696, 140737152221184, 0, 0, 5, 140737152090112}} async = next = #6 0x00007ffff27450e8 in _XReply (dpy=0x7fffebf50000, rep=, extra=0, discard=0) at ../../src/xcb_io.c:513 ext = 0x0 err = 0x7fffd18a72b0 ret_code = error = 0x7fffd18a72b0 c = reply = __PRETTY_FUNCTION__ = "_XReply" #7 0x00007fffeea92c6a in getFBConfigs (psc=0x7fffd0b0f110, screen=0, priv=0x7fffd18279a0) at glxext.c:692 dpy = 0x7fffebf50000 fb_req = sgi_req = vpreq = ---Type to continue, or q to quit--- reply = {type = 0 '\000', unused = 16 '\020', sequenceNumber = 27157, length = 85989068, numFBConfigs = 10158097, numAttribs = 0, pad3 = 0, pad4 = 0, pad5 = 0, pad6 = 0} #8 glx_screen_init (psc=0x7fffd0b0f110, screen=0, priv=0x7fffd18279a0) at glxext.c:716 No locals. #9 0x00007fffeeab792c in dri2CreateScreen (screen=0, priv=0x7fffd18279a0) at dri2_glx.c:786 driver_configs = extensions = pdp = 0x7fffd1880380 psc = 0x7fffd0b0f110 psp = driverName = deviceName = magic = i = #10 0x00007fffeea93288 in AllocAndFetchScreenConfigs (dpy=0x7fffebf50000) at glxext.c:766 psc = 0x0 i = screens = 1 #11 __glXInitialize (dpy=0x7fffebf50000) at glxext.c:865 dpyPriv = 0x7fffd18279a0 d = glx_direct = 1 glx_accel = 1 i = #12 0x00007fffeea8f4b9 in glXQueryVersion (dpy=, major=0x7ffff7dd9394, minor=0x7ffff7dd9398) at glxcmds.c:395 priv = #13 0x00007ffff6de7775 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #14 0x00007ffff6de797d in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #15 0x00007ffff6de7c8c in mozilla::gl::GLContextProviderGLX::CreateOffscreen(gfxIntSize const&, mozilla::gl::ContextFormat const&) () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #16 0x00007ffff6670ae5 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #17 0x00007ffff66b9cc8 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #18 0x00007ffff66ba527 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #19 0x00007ffff6a1dad0 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #20 0x00007ffff70497ef in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #21 0x00007ffff70402a3 in ?? () from /usr/lib/firefox-4.0b11/libxul.so No symbol table info available. #22 0x00007fffd3811d13 in ?? () No symbol table info available. #23 0x00007fffd3803880 in ?? () No symbol table info available. #24 0x00007ffff7ebe040 in ?? () No symbol table info available. #25 0x0000000000000000 in ?? () No symbol table info available. (gdb)