Application: kwin (4.6.4 (4.6.4))
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic i686
Distribution: Ubuntu 11.04

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

My laptop  was left alone and went to sleep when i tried to use it again I had to shut it down and restart it.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb786b720 (LWP 1473))]

Thread 3 (Thread 0xb2f14b70 (LWP 1493)):
#0  0x00cdad41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0x08344dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0x084114f2 in updateCurrentTime (this=0xb2600b38, tm=...) at kernel/qeventdispatcher_unix.cpp:339
#4  QTimerInfoList::timerWait (this=0xb2600b38, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x084133a3 in QEventDispatcherUNIX::processEvents (this=0xb2600488, flags=...) at kernel/qeventdispatcher_unix.cpp:906
#6  0x083e2289 in QEventLoop::processEvents (this=0xb2f14280, flags=...) at kernel/qeventloop.cpp:149
#7  0x083e2522 in QEventLoop::exec (this=0xb2f14280, flags=...) at kernel/qeventloop.cpp:201
#8  0x082ec2a0 in QThread::exec (this=0xa2bdae0) at thread/qthread.cpp:492
#9  0x083c3fdb in QInotifyFileSystemWatcherEngine::run (this=0xa2bdae0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x082eeda2 in QThreadPrivate::start (arg=0xa2bdae0) at thread/qthread_unix.cpp:320
#11 0x0127de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x007fe73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xb25ffb70 (LWP 1494)):
#0  0x00a10416 in __kernel_vsyscall ()
#1  0x0128248c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x0080c3fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00b98817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xcac1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00b98851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xcac1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x0127de99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x007fe73e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb786b720 (LWP 1473)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x9ced598, region=0x0, flag=2) at intel_regions.c:514
#8  0x01f0ece2 in intelClearWithBlit (ctx=0x9ced598, mask=2) at intel_blit.c:262
#9  0x01f114c0 in intelClear (ctx=0x9ced598, mask=2) at intel_clear.c:177
#10 0x020fe512 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0x001d977b in KWin::SceneOpenGL::paintBackground (this=0x9d11a20, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0x001d0492 in KWin::Scene::paintGenericScreen (this=0x9d11a20, orig_mask=32) at ../../kwin/scene.cpp:188
#13 0x001d9961 in KWin::SceneOpenGL::paintGenericScreen (this=0x9d11a20, mask=32, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0x001cd6f0 in KWin::Scene::finalPaintScreen (this=0x9d11a20, mask=32, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0x001ef02c in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=32, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0x02378159 in KWin::StartupFeedbackEffect::paintScreen (this=0xa11eee8, mask=32, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0x00639256 in KWin::Effect::paintScreen (this=0xa0e1580, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0x0231a0af in KWin::LogoutEffect::paintScreen (this=0xa1784c8, mask=32, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0x02335b40 in KWin::ShadowEffect::paintScreen (this=0xa0f88c8, mask=32, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0x0234a043 in KWin::BlurEffect::paintScreen (this=0xa06e7b8, mask=32, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0x0231ee9f in KWin::PresentWindowsEffect::paintScreen (this=0xa18b808, mask=0, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0x00639256 in KWin::Effect::paintScreen (this=0xa18c1c0, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0x00639256 in KWin::Effect::paintScreen (this=0xa1ae238, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0x00639256 in KWin::Effect::paintScreen (this=0xa0e3368, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0x00639256 in KWin::Effect::paintScreen (this=0xa0c4590, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0x02369272 in KWin::FlipSwitchEffect::paintScreen (this=0xa075130, mask=0, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:148
#37 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0x02305809 in KWin::DesktopGridEffect::paintScreen (this=0xa177be8, mask=0, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:156
#39 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0x022fe799 in KWin::BoxSwitchEffect::paintScreen (this=0xa25aeb8, mask=0, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#41 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0x02358c1c in KWin::CubeEffect::paintScreen (this=0xa25a8b8, mask=0, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#43 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0x00639256 in KWin::Effect::paintScreen (this=0xa133758, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0x02361e40 in KWin::CubeSlideEffect::paintScreen (this=0xa13e440, mask=0, region=..., data=...) at ../../../kwin/effects/cube/cubeslide.cpp:111
#47 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0x00639256 in KWin::Effect::paintScreen (this=0xa1fac00, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0x00639256 in KWin::Effect::paintScreen (this=0xa0e5580, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#51 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0x02351a5c in KWin::CoverSwitchEffect::paintScreen (this=0xa186c28, mask=0, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#53 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0x00639256 in KWin::Effect::paintScreen (this=0xa06dab8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0x00639256 in KWin::Effect::paintScreen (this=0xa249cd0, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#57 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0x023470f1 in KWin::ZoomEffect::paintScreen (this=0xa0e4798, mask=0, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#59 0x001ef0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0xa008440, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#60 0x001ce8bc in KWin::Scene::paintScreen (this=0x9d11a20, mask=0xbf982368, region=0xbf9823f0) at ../../kwin/scene.cpp:137
#61 0x001e5892 in KWin::SceneOpenGL::paint (this=0x9d11a20, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#62 0x001ca7b6 in KWin::Workspace::performCompositing (this=0xa012830) at ../../kwin/composite.cpp:448
#63 0x083f8214 in QObject::event (this=0xa012830, e=0xbf98291c) at kernel/qobject.cpp:1190
#64 0x03f08d24 in QApplicationPrivate::notify_helper (this=0x9c61640, receiver=0xa012830, e=0xbf98291c) at kernel/qapplication.cpp:4462
#65 0x03f0d8ce in QApplication::notify (this=0xbf982c34, receiver=0xa012830, e=0xbf98291c) at kernel/qapplication.cpp:3862
#66 0x0040636a in KApplication::notify (this=0xbf982c34, receiver=0xa012830, event=0xbf98291c) at ../../kdeui/kernel/kapplication.cpp:311
#67 0x001599ef in KWin::Application::notify (this=0xbf982c34, o=0xa012830, e=0xbf98291c) at ../../kwin/main.cpp:376
#68 0x083e30bb in QCoreApplication::notifyInternal (this=0xbf982c34, receiver=0xa012830, event=0xbf98291c) at kernel/qcoreapplication.cpp:731
#69 0x084131e4 in sendEvent (this=0x9c620a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#70 QTimerInfoList::activateTimers (this=0x9c620a0) at kernel/qeventdispatcher_unix.cpp:604
#71 0x08413338 in QEventDispatcherUNIX::processEvents (this=0x9c1faa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#72 0x03fbd7ea in QEventDispatcherX11::processEvents (this=0x9c1faa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#73 0x083e2289 in QEventLoop::processEvents (this=0xbf982b74, flags=...) at kernel/qeventloop.cpp:149
#74 0x083e2522 in QEventLoop::exec (this=0xbf982b74, flags=...) at kernel/qeventloop.cpp:201
#75 0x083e6ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#76 0x03f068e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#77 0x0015c4e2 in kdemain (argc=3, argv=0xbf982eb4) at ../../kwin/main.cpp:542
#78 0x080485bb in main (argc=3, argv=0xbf982eb4) at kwin_dummy.cpp:3

Possible duplicates by query: bug 276484, bug 276152, bug 275741, bug 275525, bug 275478.

Reported using DrKonqi