Application: kwin (4.6.2 (4.6.2))
KDE Platform Version: 4.6.2 (4.6.2)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic-pae i686
Distribution: Ubuntu 11.04

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

Running GMAMEUI in Open GL mode.  When I pressed esc key to exit from the game I was playing, I got the error message stating that KWin crashed.

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb28ad720 (LWP 1627))]

Thread 3 (Thread 0xad594b70 (LWP 1633)):
#0  0xb37f6d41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb6486dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb65534f2 in updateCurrentTime (this=0x89fa5d0, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0x89fa5d0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0xb65553a3 in QEventDispatcherUNIX::processEvents (this=0x8a088d0, flags=...) at kernel/qeventdispatcher_unix.cpp:906
#6  0xb6524289 in QEventLoop::processEvents (this=0xad594280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6524522 in QEventLoop::exec (this=0xad594280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb642e2a0 in QThread::exec (this=0x8bec398) at thread/qthread.cpp:492
#9  0xb6505fdb in QInotifyFileSystemWatcherEngine::run (this=0x8bec398) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6430da2 in QThreadPrivate::start (arg=0x8bec398) at thread/qthread_unix.cpp:320
#11 0xb38c4e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb758f73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xacd8bb70 (LWP 1634)):
#0  0xb7748424 in __kernel_vsyscall ()
#1  0xb38c948c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb759d3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb6d1b817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6e2f1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6d1b851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6e2f1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb38c4e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb758f73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb28ad720 (LWP 1627)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x864b468, region=0x0, flag=2) at intel_regions.c:514
#8  0xafc1dce2 in intelClearWithBlit (ctx=0x864b468, mask=2) at intel_blit.c:262
#9  0xafc204c0 in intelClear (ctx=0x864b468, mask=2) at intel_clear.c:177
#10 0xafa4a512 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0xb76fb84b in KWin::SceneOpenGL::paintBackground (this=0x8681ce0, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0xb76f2562 in KWin::Scene::paintGenericScreen (this=0x8681ce0, orig_mask=40) at ../../kwin/scene.cpp:188
#13 0xb76fba31 in KWin::SceneOpenGL::paintGenericScreen (this=0x8681ce0, mask=40, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0xb76ef7c0 in KWin::Scene::finalPaintScreen (this=0x8681ce0, mask=40, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0xb77110fc in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=40, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0xae8090e9 in KWin::StartupFeedbackEffect::paintScreen (this=0x8bf6330, mask=40, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8aef6d8, mask=40, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0xae7ab07f in KWin::LogoutEffect::paintScreen (this=0x8a9c160, mask=40, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0xae7c6b10 in KWin::ShadowEffect::paintScreen (this=0x8b458a0, mask=40, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0xae7db013 in KWin::BlurEffect::paintScreen (this=0x89d77f8, mask=40, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0xae7afe6f in KWin::PresentWindowsEffect::paintScreen (this=0x89d6cd0, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0xb6b1b256 in KWin::Effect::paintScreen (this=0x89e00b8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8a9da18, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0xb6b1b256 in KWin::Effect::paintScreen (this=0x89ce258, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8a2d1c8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0xae7967e9 in KWin::DesktopGridEffect::paintScreen (this=0x89d2fd0, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#37 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0xae7cdce2 in KWin::SlideEffect::paintScreen (this=0x8a510e8, mask=8, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#39 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0xae78f799 in KWin::BoxSwitchEffect::paintScreen (this=0x89d56d0, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#41 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0xae7e9bcc in KWin::CubeEffect::paintScreen (this=0x8b97188, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#43 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8b155e0, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8be11d8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#47 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0xb6b1b256 in KWin::Effect::paintScreen (this=0x8a84ae8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0xae7e2a0c in KWin::CoverSwitchEffect::paintScreen (this=0x8a4d378, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#51 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0xb6b1b256 in KWin::Effect::paintScreen (this=0x89da310, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#53 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0xb6b1b256 in KWin::Effect::paintScreen (this=0x89e0060, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0xae7d80c1 in KWin::ZoomEffect::paintScreen (this=0x8af31a8, mask=8, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#57 0xb7711172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8989848, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0xb76f098c in KWin::Scene::paintScreen (this=0x8681ce0, mask=0xbfcb9fc8, region=0xbfcba050) at ../../kwin/scene.cpp:137
#59 0xb7707962 in KWin::SceneOpenGL::paint (this=0x8681ce0, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#60 0xb76ec886 in KWin::Workspace::performCompositing (this=0x897b3d8) at ../../kwin/composite.cpp:448
#61 0xb653a214 in QObject::event (this=0x897b3d8, e=0xbfcba57c) at kernel/qobject.cpp:1190
#62 0xb5a7ed24 in QApplicationPrivate::notify_helper (this=0x859e268, receiver=0x897b3d8, e=0xbfcba57c) at kernel/qapplication.cpp:4462
#63 0xb5a838ce in QApplication::notify (this=0xbfcba894, receiver=0x897b3d8, e=0xbfcba57c) at kernel/qapplication.cpp:3862
#64 0xb72f53ca in KApplication::notify (this=0xbfcba894, receiver=0x897b3d8, event=0xbfcba57c) at ../../kdeui/kernel/kapplication.cpp:311
#65 0xb767babf in KWin::Application::notify (this=0xbfcba894, o=0x897b3d8, e=0xbfcba57c) at ../../kwin/main.cpp:376
#66 0xb65250bb in QCoreApplication::notifyInternal (this=0xbfcba894, receiver=0x897b3d8, event=0xbfcba57c) at kernel/qcoreapplication.cpp:731
#67 0xb65551e4 in sendEvent (this=0x859f498) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#68 QTimerInfoList::activateTimers (this=0x859f498) at kernel/qeventdispatcher_unix.cpp:604
#69 0xb6555338 in QEventDispatcherUNIX::processEvents (this=0x855daa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#70 0xb5b337ea in QEventDispatcherX11::processEvents (this=0x855daa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#71 0xb6524289 in QEventLoop::processEvents (this=0xbfcba7d4, flags=...) at kernel/qeventloop.cpp:149
#72 0xb6524522 in QEventLoop::exec (this=0xbfcba7d4, flags=...) at kernel/qeventloop.cpp:201
#73 0xb6528ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#74 0xb5a7c8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#75 0xb767e5b2 in kdemain (argc=3, argv=0xbfcbab14) at ../../kwin/main.cpp:542
#76 0x080485bb in main (argc=3, argv=0xbfcbab14) at kwin_dummy.cpp:3

Possible duplicates by query: bug 272726, bug 272704, bug 272699, bug 272696, bug 272690.

Reported using DrKonqi