Application: kwin (4.8.5 (4.8.5))
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-36-generic-pae i686
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:

I had just installed system updates, then rebooted. Upon reboot, I received the crash error.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#7  nouveau_flush (ctx=0x88a0148) at nouveau_driver.c:70
#8  nouveau_flush (ctx=0x88a0148) at nouveau_driver.c:57
#9  0x03e9c4d0 in _mesa_flush (ctx=0x88a0148) at main/context.c:1652
#10 0x03e9c572 in _mesa_make_current (newCtx=0x0, drawBuffer=0x0, readBuffer=0x0) at main/context.c:1431
#11 0x04022a34 in _mesa_meta_free (ctx=0x88a0148) at drivers/common/meta.c:417
#12 0x03e3802c in nouveau_context_deinit (ctx=0x88a0148) at nouveau_context.c:171
#13 0x03e419d8 in nv10_context_destroy (ctx=0x88a0148) at nv10_context.c:414
#14 0x03e38088 in nouveau_context_destroy (dri_ctx=0x8870c78) at nouveau_context.c:187
#15 0x03e3493a in driDestroyContext (pcp=0x8870c78) at ../common/dri_util.c:277
#16 0x007be39a in dri2_destroy_context (context=0x88757f8) at dri2_glx.c:132
#17 0x00794da2 in glXDestroyContext (ctx=0x88757f8, dpy=0x8784420) at glxcmds.c:424
#18 glXDestroyContext (dpy=0x8784420, ctx=0x88757f8) at glxcmds.c:405
#19 0x00a94826 in KWin::CompositingPrefs::deleteGLXContext (this=0xbf873758) at ../../kwin/compositingprefs.cpp:282
#20 0x00a95234 in KWin::CompositingPrefs::detect (this=0xbf873758) at ../../kwin/compositingprefs.cpp:223
#21 0x00a0f020 in KWin::Options::reloadCompositingSettings (this=0x87e80c0, force=false) at ../../kwin/options.cpp:313
#22 0x00a142ea in KWin::Options::updateSettings (this=0x87e80c0) at ../../kwin/options.cpp:256
#23 0x00a0c00e in KWin::Application::Application (this=0xbf8744a8) at ../../kwin/main.cpp:319
#24 0x00a0e3ae in kdemain (argc=3, argv=0xbf874754) at ../../kwin/main.cpp:511
#25 0x0804850b in main (argc=3, argv=0xbf874754) at kwin_dummy.cpp:3

This bug may be a duplicate of or related to bug 306795.

Possible duplicates by query: bug 312613, bug 312288, bug 309328, bug 308780, bug 306795.

Reported using DrKonqi