Application: kwin (4.6.1 (4.6.1))
KDE Platform Version: 4.6.1 (4.6.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-27-generic i686
Distribution: Ubuntu 10.10

-- Information about the crash:
I was watching live streaming video, I needed to leave fullscreen mode to do some other stuff, but in that moment Kwin crashed terribly. Bug is repeatable.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7774720 (LWP 1535))]

Thread 3 (Thread 0xb3751b70 (LWP 1579)):
#0  0x05d1be36 in clock_gettime () from /lib/librt.so.1
#1  0x0820950b in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#3  0x082e06e5 in QTimerInfoList::updateCurrentTime (this=0xa65b0d0) at kernel/qeventdispatcher_unix.cpp:339
#4  0x082e072a in QTimerInfoList::timerWait (this=0xa65b0d0, tm=...) at kernel/qeventdispatcher_unix.cpp:442
#5  0x082e1cab in QEventDispatcherUNIX::processEvents (this=0xa525178, flags=...) at kernel/qeventdispatcher_unix.cpp:906
#6  0x082ae609 in QEventLoop::processEvents (this=0xb3751280, flags=) at kernel/qeventloop.cpp:149
#7  0x082aea8a in QEventLoop::exec (this=0xb3751280, flags=...) at kernel/qeventloop.cpp:201
#8  0x081aab7e in QThread::exec (this=0xa657498) at thread/qthread.cpp:490
#9  0x0828d35b in QInotifyFileSystemWatcherEngine::run (this=0xa657498) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x081addf9 in QThreadPrivate::start (arg=0xa657498) at thread/qthread_unix.cpp:266
#11 0x0564dcc9 in start_thread () from /lib/libpthread.so.0
#12 0x0030569e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb2f48b70 (LWP 1580)):
#0  0x00a64416 in __kernel_vsyscall ()
#1  0x056524dc in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x00312d9d in pthread_cond_wait () from /lib/libc.so.6
#3  0x00ea7877 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xfa61a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00ea78c1 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xfa61a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x0564dcc9 in start_thread () from /lib/libpthread.so.0
#6  0x0030569e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7774720 (LWP 1535)):
[KCrash Handler]
#7  0x04fefee0 in ?? () from /usr/lib/dri/i965_dri.so
#8  0x04fe2687 in ?? () from /usr/lib/dri/i965_dri.so
#9  0x04fe4b27 in ?? () from /usr/lib/dri/i965_dri.so
#10 0x05054fba in ?? () from /usr/lib/dri/i965_dri.so
#11 0x001e8a9b in KWin::SceneOpenGL::paintBackground (this=0x9e1b520, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0x001db672 in KWin::Scene::paintGenericScreen (this=0x9e1b520, orig_mask=<value optimized out>) at ../../kwin/scene.cpp:188
#13 0x001e8ca5 in KWin::SceneOpenGL::paintGenericScreen (this=0x9e1b520, mask=<value optimized out>, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0x001d86c0 in KWin::Scene::finalPaintScreen (this=0x9e1b520, mask=40, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0x001fc3dc in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=40, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0x03bd8db9 in KWin::StartupFeedbackEffect::paintScreen (this=0xa41f370, mask=40, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0x003fe846 in KWin::Effect::paintScreen (this=0xa399180, mask=40, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0x03b6d336 in KWin::LogoutEffect::paintScreen (this=0xa4aca38, mask=40, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0x03b90b0f in KWin::ShadowEffect::paintScreen (this=0xa3f50f0, mask=<value optimized out>, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0x03ba61c3 in KWin::BlurEffect::paintScreen (this=0xa39e4e0, mask=40, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0x03b737af in KWin::PresentWindowsEffect::paintScreen (this=0xa6de640, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0x003fe846 in KWin::Effect::paintScreen (this=0xa67dd78, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0x003fe846 in KWin::Effect::paintScreen (this=0xa3c2b18, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0x003fe846 in KWin::Effect::paintScreen (this=0xa4f2040, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0x003fe846 in KWin::Effect::paintScreen (this=0xa383ae8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0x03b55c32 in KWin::DesktopGridEffect::paintScreen (this=0xa6d5860, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#37 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0x03b967d2 in KWin::SlideEffect::paintScreen (this=0xa4f27f8, mask=8, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#39 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0x03b4caaf in KWin::BoxSwitchEffect::paintScreen (this=0xa3ebc80, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#41 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0x03bb7374 in KWin::CubeEffect::paintScreen (this=0xa3c24e0, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#43 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0x003fe846 in KWin::Effect::paintScreen (this=0xa719ec0, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0x003fe846 in KWin::Effect::paintScreen (this=0xa3c01a8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#47 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0x003fe846 in KWin::Effect::paintScreen (this=0xa4fcf88, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0x03bad90c in KWin::CoverSwitchEffect::paintScreen (this=0xa3c0ae0, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#51 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0x003fe846 in KWin::Effect::paintScreen (this=0xa39d7c8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#53 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0x003fe846 in KWin::Effect::paintScreen (this=0xa5f2830, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0x03ba2d99 in KWin::ZoomEffect::paintScreen (this=0xa685330, mask=8, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#57 0x001fc460 in KWin::EffectsHandlerImpl::paintScreen (this=0xa354248, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0x001d9ea4 in KWin::Scene::paintScreen (this=0x9e1b520, mask=0xbfeaa614, region=0xbfeaa6c0) at ../../kwin/scene.cpp:137
#59 0x001f084a in KWin::SceneOpenGL::paint (this=0x9e1b520, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#60 0x001d4bf7 in KWin::Workspace::performCompositing (this=0x9e24ad0) at ../../kwin/composite.cpp:448
#61 0x082c2504 in QObject::event (this=0x9e24ad0, e=0x9de7050) at kernel/qobject.cpp:1183
#62 0x011f4fdc in QApplicationPrivate::notify_helper (this=0x9d6ac20, receiver=0x9e24ad0, e=0xbfeaac00) at kernel/qapplication.cpp:4396
#63 0x011fb04e in QApplication::notify (this=0xbfeaaf24, receiver=0x9e24ad0, e=0xbfeaac00) at kernel/qapplication.cpp:3798
#64 0x007867da in KApplication::notify (this=0xbfeaaf24, receiver=0x9e24ad0, event=0xbfeaac00) at ../../kdeui/kernel/kapplication.cpp:311
#65 0x0015dd0f in KWin::Application::notify (this=0xbfeaaf24, o=0x9e24ad0, e=0xbfeaac00) at ../../kwin/main.cpp:376
#66 0x082afb3b in QCoreApplication::notifyInternal (this=0xbfeaaf24, receiver=0x9e24ad0, event=0xbfeaac00) at kernel/qcoreapplication.cpp:732
#67 0x082e1ad6 in sendEvent (this=0x9d6b3a8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#68 QTimerInfoList::activateTimers (this=0x9d6b3a8) at kernel/qeventdispatcher_unix.cpp:602
#69 0x082e1c37 in QEventDispatcherUNIX::processEvents (this=0x9d4cb88, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#70 0x012b80d2 in QEventDispatcherX11::processEvents (this=0x9d4cb88, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#71 0x082ae609 in QEventLoop::processEvents (this=0xbfeaae54, flags=) at kernel/qeventloop.cpp:149
#72 0x082aea8a in QEventLoop::exec (this=0xbfeaae54, flags=...) at kernel/qeventloop.cpp:201
#73 0x082b300f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#74 0x011f3e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#75 0x00160d00 in kdemain (argc=3, argv=0xbfeab1a4) at ../../kwin/main.cpp:542
#76 0x080485ab in main (argc=3, argv=0xbfeab1a4) at kwin_dummy.cpp:3

Possible duplicates by query: bug 268321, bug 268027, bug 267291, bug 267059, bug 266303.

Reported using DrKonqi