Application: kwin (4.6.00 (4.6.0) "release 6")
KDE Platform Version: 4.6.00 (4.6.0) "release 6"
Qt Version: 4.7.1
Operating System: Linux 2.6.37.1-1.2-desktop i686
Distribution: "openSUSE 11.4 (i586)"

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

The system just failed to recover from the OpenGL screensaver and  prompted that Kwin has crashed

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb24b6ac0 (LWP 4898))]

Thread 2 (Thread 0xada96b70 (LWP 4925)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb6203105 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb755faec in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libc.so.6
#3  0xb6bf6e17 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6d0d1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6bf6e5f in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6d0d1a0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb61feb05 in start_thread () from /lib/libpthread.so.0
#6  0xb7551d5e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb24b6ac0 (LWP 4898)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x81e90b0, region=0x0, flag=2) at intel_regions.c:514
#8  0xaf50116a in intelClearWithBlit (ctx=0x81e90b0, mask=2) at intel_blit.c:262
#9  0xaf50390d in intelClear (ctx=0x81e90b0, mask=2) at intel_clear.c:177
#10 0xaf701698 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0xb76bcebb in KWin::SceneOpenGL::paintBackground (this=0x8130d68, region=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene_opengl.cpp:921
#12 0xb76b332c in KWin::Scene::paintGenericScreen (this=0x8130d68, orig_mask=40) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:188
#13 0xb76bd0d1 in KWin::SceneOpenGL::paintGenericScreen (this=0x8130d68, mask=40, data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene_opengl.cpp:909
#14 0xb76b0110 in KWin::Scene::finalPaintScreen (this=0x8130d68, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:178
#15 0xb76d1c45 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:173
#16 0xae314796 in KWin::StartupFeedbackEffect::paintScreen (this=0x885e6a0, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#18 0xb69e1d7a in KWin::Effect::paintScreen (this=0x8820168, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#19 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#20 0xae2b2cb2 in KWin::LogoutEffect::paintScreen (this=0x87a7658, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/logout/logout.cpp:207
#21 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#22 0xae2cf81f in KWin::ShadowEffect::paintScreen (this=0x85fe630, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/shadow/shadow.cpp:189
#23 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#24 0xae2e48d1 in KWin::BlurEffect::paintScreen (this=0x8550770, mask=40, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/blur/blur.cpp:230
#25 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#26 0xae2b7da4 in KWin::PresentWindowsEffect::paintScreen (this=0x856a728, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/presentwindows/presentwindows.cpp:205
#27 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#28 0xb69e1d7a in KWin::Effect::paintScreen (this=0x85fc738, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#29 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#30 0xb69e1d7a in KWin::Effect::paintScreen (this=0x868e678, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#31 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#32 0xb69e1d7a in KWin::Effect::paintScreen (this=0x868e870, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#33 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#34 0xb69e1d7a in KWin::Effect::paintScreen (this=0x8208548, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#35 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#36 0xb69e1d7a in KWin::Effect::paintScreen (this=0x8601710, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#37 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#38 0xb69e1d7a in KWin::Effect::paintScreen (this=0x8559a18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#39 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#40 0xae29ce64 in KWin::DesktopGridEffect::paintScreen (this=0x8568050, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/desktopgrid/desktopgrid.cpp:155
#41 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#42 0xae294dec in KWin::BoxSwitchEffect::paintScreen (this=0x888c0f0, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/boxswitch/boxswitch.cpp:143
#43 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#44 0xae2f3c00 in KWin::CubeEffect::paintScreen (this=0x855f170, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/cube/cube.cpp:698
#45 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#46 0xb69e1d7a in KWin::Effect::paintScreen (this=0x86710f0, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#47 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#48 0xb69e1d7a in KWin::Effect::paintScreen (this=0x856c310, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#49 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#50 0xae2fd697 in KWin::CubeSlideEffect::paintScreen (this=0x85635b8, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/cube/cubeslide.cpp:111
#51 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#52 0xb69e1d7a in KWin::Effect::paintScreen (this=0x868f720, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#53 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#54 0xb69e1d7a in KWin::Effect::paintScreen (this=0x85de828, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#55 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#56 0xae2ec4da in KWin::CoverSwitchEffect::paintScreen (this=0x8874e90, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/coverswitch/coverswitch.cpp:126
#57 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#58 0xb69e1d7a in KWin::Effect::paintScreen (this=0x855c618, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#59 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#60 0xb69e1d7a in KWin::Effect::paintScreen (this=0x88953d0, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/lib/kwineffects.cpp:227
#61 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#62 0xae2e1760 in KWin::ZoomEffect::paintScreen (this=0x8883808, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects/zoom/zoom.cpp:341
#63 0xb76d1cc7 in KWin::EffectsHandlerImpl::paintScreen (this=0x850ee18, mask=8, region=..., data=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/effects.cpp:169
#64 0xb76b2a09 in KWin::Scene::paintScreen (this=0x8130d68, mask=0xbfed3710, region=0xbfed37b0) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene.cpp:137
#65 0xb76c817a in KWin::SceneOpenGL::paint (this=0x8130d68, damage=..., toplevels=...) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/scene_opengl.cpp:772
#66 0xb76ad213 in KWin::Workspace::performCompositing (this=0x812c020) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/composite.cpp:448
#67 0xb638b3f4 in QObject::event (this=0x812c020, e=0xbfed3cfc) at kernel/qobject.cpp:1175
#68 0xb5883414 in QApplicationPrivate::notify_helper (this=0x80712b8, receiver=0x812c020, e=0xbfed3cfc) at kernel/qapplication.cpp:4445
#69 0xb588c0c7 in QApplication::notify (this=0xbfed4034, receiver=0x812c020, e=0xbfed3cfc) at kernel/qapplication.cpp:3845
#70 0xb71981f1 in KApplication::notify (this=0xbfed4034, receiver=0x812c020, event=0xbfed3cfc) at /usr/src/debug/kdelibs-4.6.0/kdeui/kernel/kapplication.cpp:311
#71 0xb7639131 in KWin::Application::notify (this=0xbfed4034, o=0x812c020, e=0xbfed3cfc) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/main.cpp:376
#72 0xb6375fde in QCoreApplication::notifyInternal (this=0xbfed4034, receiver=0x812c020, event=0xbfed3cfc) at kernel/qcoreapplication.cpp:732
#73 0xb63a7379 in sendEvent (this=0x8071a40) at kernel/qcoreapplication.h:215
#74 QTimerInfoList::activateTimers (this=0x8071a40) at kernel/qeventdispatcher_unix.cpp:618
#75 0xb63a7b1d in QEventDispatcherUNIX::processEvents (this=0x8054d88, flags=...) at kernel/qeventdispatcher_unix.cpp:937
#76 0xb593a64a in QEventDispatcherX11::processEvents (this=0x8054d88, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#77 0xb63752bd in QEventLoop::processEvents (this=0xbfed3f64, flags=...) at kernel/qeventloop.cpp:149
#78 0xb63754e9 in QEventLoop::exec (this=0xbfed3f64, flags=...) at kernel/qeventloop.cpp:201
#79 0xb6379f90 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#80 0xb5881104 in QApplication::exec () at kernel/qapplication.cpp:3719
#81 0xb763bbc7 in kdemain (argc=3, argv=0xbfed42a4) at /usr/src/debug/kdebase-workspace-4.6.0/kwin/main.cpp:542
#82 0x0804860b in main (argc=3, argv=0xbfed42a4) at /usr/src/debug/kdebase-workspace-4.6.0/build/kwin/kwin_dummy.cpp:3

Possible duplicates by query: bug 269562, bug 269314, bug 268394, bug 267939, bug 266132.

Reported using DrKonqi