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:
The Kwin crash and close the Savage.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb29d0720 (LWP 4445))]

Thread 3 (Thread 0xad669b70 (LWP 4451)):
#0  0xb3919d41 in clock_gettime () from /lib/i386-linux-gnu/librt.so.1
#1  0xb65a9dd8 in do_gettime () at tools/qelapsedtimer_unix.cpp:123
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:140
#3  0xb6677525 in updateCurrentTime (this=0xa349e68, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:339
#4  QEventDispatcherUNIXPrivate::doSelect (this=0xa349e68, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:182
#5  0xb6678326 in QEventDispatcherUNIX::processEvents (this=0xa4d0ef8, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0xb6647289 in QEventLoop::processEvents (this=0xad669280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb6647522 in QEventLoop::exec (this=0xad669280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb65512a0 in QThread::exec (this=0xa347918) at thread/qthread.cpp:492
#9  0xb6628fdb in QInotifyFileSystemWatcherEngine::run (this=0xa347918) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6553da2 in QThreadPrivate::start (arg=0xa347918) at thread/qthread_unix.cpp:320
#11 0xb39e7e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb76b273e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xaccffb70 (LWP 4452)):
#0  0xb7874424 in __kernel_vsyscall ()
#1  0xb39ec48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb76c03fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb6e3e817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6f521c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6e3e851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6f521c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb39e7e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb76b273e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb29d0720 (LWP 4445)):
[KCrash Handler]
#7  0xafb642e0 in intel_region_buffer () from /usr/lib/dri/i965_dri.so
#8  0xafb55ce2 in intelClearWithBlit () from /usr/lib/dri/i965_dri.so
#9  0xafb584c0 in ?? () from /usr/lib/dri/i965_dri.so
#10 0xaf982512 in _mesa_Clear () from /usr/lib/dri/libdricore.so
#11 0xb782784b in KWin::SceneOpenGL::paintBackground (this=0x9fd87a8, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0xb781e562 in KWin::Scene::paintGenericScreen (this=0x9fd87a8, orig_mask=32) at ../../kwin/scene.cpp:188
#13 0xb7827a31 in KWin::SceneOpenGL::paintGenericScreen (this=0x9fd87a8, mask=32, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0xb781b7c0 in KWin::Scene::finalPaintScreen (this=0x9fd87a8, mask=32, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0xb783d0fc in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=32, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0xae6c1013 in KWin::BlurEffect::paintScreen (this=0xa307210, mask=32, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#17 0xb783d172 in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0xae6e0202 in KWin::FlipSwitchEffect::paintScreen (this=0xa325760, mask=0, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:148
#19 0xb783d172 in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0xae675799 in KWin::BoxSwitchEffect::paintScreen (this=0xa4fe110, mask=0, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#21 0xb783d172 in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0xb6c3e256 in KWin::Effect::paintScreen (this=0xa3f42b8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#23 0xb783d172 in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0xae6c8a0c in KWin::CoverSwitchEffect::paintScreen (this=0xa4fd148, mask=0, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#25 0xb783d172 in KWin::EffectsHandlerImpl::paintScreen (this=0xa2d7460, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0xb781c98c in KWin::Scene::paintScreen (this=0x9fd87a8, mask=0xbf9a9d88, region=0xbf9a9e18) at ../../kwin/scene.cpp:137
#27 0xb7833962 in KWin::SceneOpenGL::paint (this=0x9fd87a8, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#28 0xb7818747 in KWin::Workspace::performCompositing (this=0xa23ae10) at ../../kwin/composite.cpp:442
#29 0xb665d214 in QObject::event (this=0xa23ae10, e=0xbf9aa33c) at kernel/qobject.cpp:1190
#30 0xb5ba1d24 in QApplicationPrivate::notify_helper (this=0x9e58928, receiver=0xa23ae10, e=0xbf9aa33c) at kernel/qapplication.cpp:4462
#31 0xb5ba68ce in QApplication::notify (this=0xbf9aa654, receiver=0xa23ae10, e=0xbf9aa33c) at kernel/qapplication.cpp:3862
#32 0xb74183ca in KApplication::notify (this=0xbf9aa654, receiver=0xa23ae10, event=0xbf9aa33c) at ../../kdeui/kernel/kapplication.cpp:311
#33 0xb77a7abf in KWin::Application::notify (this=0xbf9aa654, o=0xa23ae10, e=0xbf9aa33c) at ../../kwin/main.cpp:376
#34 0xb66480bb in QCoreApplication::notifyInternal (this=0xbf9aa654, receiver=0xa23ae10, event=0xbf9aa33c) at kernel/qcoreapplication.cpp:731
#35 0xb66781e4 in sendEvent (this=0x9e618b8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#36 QTimerInfoList::activateTimers (this=0x9e618b8) at kernel/qeventdispatcher_unix.cpp:604
#37 0xb6678338 in QEventDispatcherUNIX::processEvents (this=0x9e16aa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#38 0xb5c567ea in QEventDispatcherX11::processEvents (this=0x9e16aa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#39 0xb6647289 in QEventLoop::processEvents (this=0xbf9aa594, flags=...) at kernel/qeventloop.cpp:149
#40 0xb6647522 in QEventLoop::exec (this=0xbf9aa594, flags=...) at kernel/qeventloop.cpp:201
#41 0xb664becc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#42 0xb5b9f8e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#43 0xb77aa5b2 in kdemain (argc=3, argv=0xbf9aa8d4) at ../../kwin/main.cpp:542
#44 0x080485bb in main (argc=3, argv=0xbf9aa8d4) at kwin_dummy.cpp:3

Possible duplicates by query: bug 273989, bug 273601, bug 273271, bug 273246, bug 273078.

Reported using DrKonqi