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 i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
returning from fullscreen view of a youtube video watched with chromium.

- Unusual behavior I noticed:
the flash video wouldn't minimize when I clicked on the minimize button but it did respond to pressing the esc key.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7765720 (LWP 1486))]

Thread 2 (Thread 0xb48f3b70 (LWP 1489)):
#0  0x007f4416 in __kernel_vsyscall ()
#1  0x0416b48c in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169
#2  0x006533fd in __pthread_cond_wait (cond=0xeec2b0, mutex=0xeec298) at forward.c:139
#3  0x00dd3817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xee71c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00dd3851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xee71c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x04166e99 in start_thread (arg=0xb48f3b70) at pthread_create.c:304
#6  0x0064573e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb7765720 (LWP 1486)):
[KCrash Handler]
#7  0x047db2e0 in intel_region_buffer () from /usr/lib/dri/i965_dri.so
#8  0x047ccce2 in intelClearWithBlit () from /usr/lib/dri/i965_dri.so
#9  0x047cf4c0 in ?? () from /usr/lib/dri/i965_dri.so
#10 0x04d3d512 in _mesa_Clear () from /usr/lib/dri/libdricore.so
#11 0x00c0184b in KWin::SceneOpenGL::paintBackground (this=0x88dff60, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0x00bf8562 in KWin::Scene::paintGenericScreen (this=0x88dff60, orig_mask=32) at ../../kwin/scene.cpp:188
#13 0x00c01a31 in KWin::SceneOpenGL::paintGenericScreen (this=0x88dff60, mask=32, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0x00bf57c0 in KWin::Scene::finalPaintScreen (this=0x88dff60, mask=32, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0x00c170fc in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0x04bed0e9 in KWin::StartupFeedbackEffect::paintScreen (this=0x8f91908, mask=32, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0x00524256 in KWin::Effect::paintScreen (this=0x8f90f78, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0x04b8f07f in KWin::LogoutEffect::paintScreen (this=0x8f91098, mask=32, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0x04baab10 in KWin::ShadowEffect::paintScreen (this=0x8e7b8b0, mask=32, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0x04bbf013 in KWin::BlurEffect::paintScreen (this=0x8e135c8, mask=32, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0x04b93e6f in KWin::PresentWindowsEffect::paintScreen (this=0x8e05508, mask=32, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0x00524256 in KWin::Effect::paintScreen (this=0x8e187b8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0x00524256 in KWin::Effect::paintScreen (this=0x8fcac48, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0x00524256 in KWin::Effect::paintScreen (this=0x86d5278, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0x00524256 in KWin::Effect::paintScreen (this=0x8e167b8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0x00524256 in KWin::Effect::paintScreen (this=0x904bc10, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#37 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0x00524256 in KWin::Effect::paintScreen (this=0x86abd28, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#39 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0x00524256 in KWin::Effect::paintScreen (this=0x8af2dc0, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#41 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0x00524256 in KWin::Effect::paintScreen (this=0x8e66360, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#43 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0x04bde202 in KWin::FlipSwitchEffect::paintScreen (this=0x8f80cc8, mask=32, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:148
#45 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0x04b7a7e9 in KWin::DesktopGridEffect::paintScreen (this=0x8fe1c78, mask=32, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#47 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0x00524256 in KWin::Effect::paintScreen (this=0x90467c0, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0x04b73799 in KWin::BoxSwitchEffect::paintScreen (this=0x8f80b90, mask=32, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#51 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0x00524256 in KWin::Effect::paintScreen (this=0x9045d10, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#53 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0x00524256 in KWin::Effect::paintScreen (this=0x8fcae50, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0x00524256 in KWin::Effect::paintScreen (this=0x8ebf0d0, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#57 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0x00524256 in KWin::Effect::paintScreen (this=0x8f4de90, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#59 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#60 0x04bc6a0c in KWin::CoverSwitchEffect::paintScreen (this=0x8f2d8a0, mask=32, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#61 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#62 0x04bb1ce2 in KWin::SlideEffect::paintScreen (this=0x97f7a28, mask=32, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#63 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#64 0x00524256 in KWin::Effect::paintScreen (this=0x8fed5c8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#65 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#66 0x00524256 in KWin::Effect::paintScreen (this=0x8a2bb50, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#67 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#68 0x00524256 in KWin::Effect::paintScreen (this=0x897f708, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#69 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#70 0x04bbc0c1 in KWin::ZoomEffect::paintScreen (this=0x90517f0, mask=32, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#71 0x00c17172 in KWin::EffectsHandlerImpl::paintScreen (this=0x896f258, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#72 0x00bf698c in KWin::Scene::paintScreen (this=0x88dff60, mask=0xbfa2f008, region=0xbfa2f090) at ../../kwin/scene.cpp:137
#73 0x00c0d962 in KWin::SceneOpenGL::paint (this=0x88dff60, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#74 0x00bf2886 in KWin::Workspace::performCompositing (this=0x873df80) at ../../kwin/composite.cpp:448
#75 0x0616a214 in QObject::event (this=0x873df80, e=0xbfa2f5bc) at kernel/qobject.cpp:1190
#76 0x01497d24 in QApplicationPrivate::notify_helper (this=0x8681610, receiver=0x873df80, e=0xbfa2f5bc) at kernel/qapplication.cpp:4462
#77 0x0149c8ce in QApplication::notify (this=0xbfa2f8d4, receiver=0x873df80, e=0xbfa2f5bc) at kernel/qapplication.cpp:3862
#78 0x002f13ca in KApplication::notify (this=0xbfa2f8d4, receiver=0x873df80, event=0xbfa2f5bc) at ../../kdeui/kernel/kapplication.cpp:311
#79 0x00b81abf in KWin::Application::notify (this=0xbfa2f8d4, o=0x873df80, e=0xbfa2f5bc) at ../../kwin/main.cpp:376
#80 0x061550bb in QCoreApplication::notifyInternal (this=0xbfa2f8d4, receiver=0x873df80, event=0xbfa2f5bc) at kernel/qcoreapplication.cpp:731
#81 0x061851e4 in sendEvent (this=0x8681ef8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#82 QTimerInfoList::activateTimers (this=0x8681ef8) at kernel/qeventdispatcher_unix.cpp:604
#83 0x06185338 in QEventDispatcherUNIX::processEvents (this=0x8637aa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#84 0x0154c7ea in QEventDispatcherX11::processEvents (this=0x8637aa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#85 0x06154289 in QEventLoop::processEvents (this=0xbfa2f814, flags=...) at kernel/qeventloop.cpp:149
#86 0x06154522 in QEventLoop::exec (this=0xbfa2f814, flags=...) at kernel/qeventloop.cpp:201
#87 0x06158ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#88 0x014958e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#89 0x00b845b2 in kdemain (argc=3, argv=0xbfa2fb54) at ../../kwin/main.cpp:542
#90 0x080485bb in main (argc=3, argv=0xbfa2fb54) at kwin_dummy.cpp:3

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

Possible duplicates by query: bug 271964, bug 271873, bug 271574, bug 271452, bug 271396.

Reported using DrKonqi