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 x86_64
Distribution: Ubuntu 11.04

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

Kwin Crash upon closure of Chrome Full screen
I was exiting out of full screen mode while watching a streaming video. Upon closure the kwin crashed.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7748e0f7a0 (LWP 1712))]

Thread 3 (Thread 0x7f772c981700 (LWP 1730)):
#0  0x00007f7744a395f4 in QEventDispatcherUNIXPrivate::doSelect (this=0x3f251e0, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:208
#1  0x00007f7744a3a04a in QEventDispatcherUNIX::processEvents (this=0x3f08070, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#2  0x00007f7744a0b882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#3  0x00007f7744a0babc in QEventLoop::exec (this=0x7f772c980db0, flags=...) at kernel/qeventloop.cpp:201
#4  0x00007f7744922924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#5  0x00007f77449edc2f in QInotifyFileSystemWatcherEngine::run (this=0x3f1fc90) at io/qfilesystemwatcher_inotify.cpp:248
#6  0x00007f7744925175 in QThreadPrivate::start (arg=0x3f1fc90) at thread/qthread_unix.cpp:320
#7  0x00007f773f018d8c in start_thread (arg=0x7f772c981700) at pthread_create.c:304
#8  0x00007f774865e04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f772c180700 (LWP 1731)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f77474bd2a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7f77477d6180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007f77474bd2d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7f77477e4254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007f773f018d8c in start_thread (arg=0x7f772c180700) at pthread_create.c:304
#4  0x00007f774865e04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7748e0f7a0 (LWP 1712)):
[KCrash Handler]
#6  intel_region_buffer (intel=0x182ade0, region=0x0, flag=2) at intel_regions.c:514
#7  0x00007f77306656c2 in intelClearWithBlit (ctx=0x182ade0, mask=2) at intel_blit.c:262
#8  0x00007f7730667d2a in intelClear (ctx=0x182ade0, mask=2) at intel_clear.c:177
#9  0x00007f77489d4ce7 in KWin::SceneOpenGL::paintBackground (this=<value optimized out>, region=<value optimized out>) at ../../kwin/scene_opengl.cpp:921
#10 0x00007f77489cc88f in KWin::Scene::paintGenericScreen (this=0x18226e0, orig_mask=32) at ../../kwin/scene.cpp:188
#11 0x00007f77489c9c7a in KWin::Scene::finalPaintScreen (this=0x18226e0, mask=32, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:178
#12 0x00007f77489e7f19 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:173
#13 0x00007f772f7165a6 in KWin::StartupFeedbackEffect::paintScreen (this=0x2afef80, mask=32, region=<value optimized out>, data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#14 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#15 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#16 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#17 0x00007f772f6bd44d in KWin::LogoutEffect::paintScreen (this=0x2e0d960, mask=32, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#18 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#19 0x00007f772f6d857b in KWin::ShadowEffect::paintScreen (this=0x29d1d50, mask=32, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#20 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#21 0x00007f772f6eae68 in KWin::BlurEffect::paintScreen (this=<value optimized out>, mask=32, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#22 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#23 0x00007f772f6c1fbd in KWin::PresentWindowsEffect::paintScreen (this=0x2995300, mask=32, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#24 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#25 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#26 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#27 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#28 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#29 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#30 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#31 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#32 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#33 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#34 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#35 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#36 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#37 0x00007f772f6a9365 in KWin::DesktopGridEffect::paintScreen (this=0x2d4bec0, mask=32, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#38 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#39 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#40 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#41 0x00007f772f6a2bad in KWin::BoxSwitchEffect::paintScreen (this=0x2e1f440, mask=32, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#42 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#43 0x00007f772f6f9256 in KWin::CubeEffect::paintScreen (this=<value optimized out>, mask=32, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#44 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#45 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#46 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#47 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#48 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#49 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#50 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#51 0x00007f772f6f1d86 in KWin::CoverSwitchEffect::paintScreen (this=0x2c21fd0, mask=32, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#52 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#53 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#54 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#55 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#56 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#57 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#58 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#59 0x00007f7746aa7a18 in KWin::Effect::paintScreen (this=<value optimized out>, mask=32, region=<value optimized out>, data=...) at ../../../kwin/lib/kwineffects.cpp:227
#60 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#61 0x00007f772f6e839b in KWin::ZoomEffect::paintScreen (this=0x2bf2960, mask=32, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#62 0x00007f77489e7fa3 in KWin::EffectsHandlerImpl::paintScreen (this=0x29569e0, mask=32, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:169
#63 0x00007f77489cc0af in KWin::Scene::paintScreen (this=0x18226e0, mask=0x7fffbcd3950c, region=0x7fffbcd395d0) at ../../kwin/scene.cpp:137
#64 0x00007f77489dfef3 in KWin::SceneOpenGL::paint (this=0x18226e0, damage=..., toplevels=<value optimized out>) at ../../kwin/scene_opengl.cpp:772
#65 0x00007f77489c7396 in KWin::Workspace::performCompositing (this=0x1b51880) at ../../kwin/composite.cpp:448
#66 0x00007f7744a201c9 in QObject::event (this=0x1b51880, e=<value optimized out>) at kernel/qobject.cpp:1190
#67 0x00007f7743dcd9e4 in QApplicationPrivate::notify_helper (this=0x17112d0, receiver=0x1b51880, e=0x7fffbcd39d60) at kernel/qapplication.cpp:4462
#68 0x00007f7743dd23aa in QApplication::notify (this=<value optimized out>, receiver=0x1b51880, e=0x7fffbcd39d60) at kernel/qapplication.cpp:4341
#69 0x00007f7748159866 in KApplication::notify (this=0x7fffbcd3a160, receiver=0x1b51880, event=0x7fffbcd39d60) at ../../kdeui/kernel/kapplication.cpp:311
#70 0x00007f7744a0c49c in QCoreApplication::notifyInternal (this=0x7fffbcd3a160, receiver=0x1b51880, event=0x7fffbcd39d60) at kernel/qcoreapplication.cpp:731
#71 0x00007f7744a39f12 in sendEvent (this=0x1711d10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#72 QTimerInfoList::activateTimers (this=0x1711d10) at kernel/qeventdispatcher_unix.cpp:604
#73 0x00007f7744a3a05b in QEventDispatcherUNIX::processEvents (this=0x16b6340, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#74 0x00007f7743e75c0c in QEventDispatcherX11::processEvents (this=0x16b6340, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#75 0x00007f7744a0b882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#76 0x00007f7744a0babc in QEventLoop::exec (this=0x7fffbcd3a0a0, flags=...) at kernel/qeventloop.cpp:201
#77 0x00007f7744a0fecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#78 0x00007f77489651ec in kdemain (argc=<value optimized out>, argv=0x7fffbcd3a7f8) at ../../kwin/main.cpp:542
#79 0x00007f7748596eff in __libc_start_main (main=0x400740 <main(int, char**)>, argc=3, ubp_av=0x7fffbcd3a7f8, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffbcd3a7e8) at libc-start.c:226
#80 0x0000000000400669 in _start ()

This bug may be a duplicate of or related to bug 252817.

Possible duplicates by query: bug 273066, bug 272846, bug 272829, bug 272826, bug 272745.

Reported using DrKonqi