Bug 278979

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 2.6.38-10-generic-pae i686
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed: waking the computer up, ending screensaver. It jammed as I was enetering my password.

Thanks!

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb2981720 (LWP 1562))]

Thread 3 (Thread 0xad56eb70 (LWP 1570)):
#0  0xb7823424 in __kernel_vsyscall ()
#1  0xb765f681 in select () from /lib/i386-linux-gnu/libc.so.6
#2  0xb662638b in qt_safe_select (nfds=17, fdread=0xacc00590, fdwrite=0xacc007a4, fdexcept=0xacc009b8, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#3  0xb662a6e9 in QEventDispatcherUNIX::select (this=0xacc00488, nfds=17, readfds=0xacc00590, writefds=0xacc007a4, exceptfds=0xacc009b8, timeout=0x0) at kernel/qeventdispatcher_unix.cpp:632
#4  0xb662b66b in QEventDispatcherUNIXPrivate::doSelect (this=0xacc00498, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#5  0xb662c326 in QEventDispatcherUNIX::processEvents (this=0xacc00488, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0xb65fb289 in QEventLoop::processEvents (this=0xad56e280, flags=...) at kernel/qeventloop.cpp:149
#7  0xb65fb522 in QEventLoop::exec (this=0xad56e280, flags=...) at kernel/qeventloop.cpp:201
#8  0xb65052a0 in QThread::exec (this=0x8d3b020) at thread/qthread.cpp:492
#9  0xb65dcfdb in QInotifyFileSystemWatcherEngine::run (this=0x8d3b020) at io/qfilesystemwatcher_inotify.cpp:248
#10 0xb6507da2 in QThreadPrivate::start (arg=0x8d3b020) at thread/qthread_unix.cpp:320
#11 0xb3999e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0xb766673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xacbffb70 (LWP 1571)):
#0  0xb7823424 in __kernel_vsyscall ()
#1  0xb399e48c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0xb76743fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0xb6df2817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xb6f061c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0xb6df2851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xb6f061c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0xb3999e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0xb766673e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb2981720 (LWP 1562)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x896e8f0, region=0x0, flag=2) at intel_regions.c:514
#8  0xafc2ace2 in intelClearWithBlit (ctx=0x896e8f0, mask=2) at intel_blit.c:262
#9  0xafc2d4c0 in intelClear (ctx=0x896e8f0, mask=2) at intel_clear.c:177
#10 0xafa57512 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0xb77d684b in KWin::SceneOpenGL::paintBackground (this=0x89a44e0, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0xb77cd562 in KWin::Scene::paintGenericScreen (this=0x89a44e0, orig_mask=40) at ../../kwin/scene.cpp:188
#13 0xb77d6a31 in KWin::SceneOpenGL::paintGenericScreen (this=0x89a44e0, mask=40, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0xb77ca7c0 in KWin::Scene::finalPaintScreen (this=0x89a44e0, mask=40, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0xb77ec0fc in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=40, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0xae7e30e9 in KWin::StartupFeedbackEffect::paintScreen (this=0x8deab98, mask=40, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8dcaeb0, mask=40, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0xae78507f in KWin::LogoutEffect::paintScreen (this=0x8d856c8, mask=40, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0xae7a0b10 in KWin::ShadowEffect::paintScreen (this=0x8ec8d70, mask=40, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0xae7b5013 in KWin::BlurEffect::paintScreen (this=0x8cfcf28, mask=40, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0xae789e6f in KWin::PresentWindowsEffect::paintScreen (this=0x8cfb130, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8d72728, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8dc3420, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8d5bd08, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8d50f28, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0xae7707e9 in KWin::DesktopGridEffect::paintScreen (this=0x8cff768, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#37 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0xae7a7ce2 in KWin::SlideEffect::paintScreen (this=0x8d76e70, mask=8, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#39 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0xae769799 in KWin::BoxSwitchEffect::paintScreen (this=0x8e89880, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#41 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0xae7c3bcc in KWin::CubeEffect::paintScreen (this=0x8e88f78, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#43 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8dccd88, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8f3e408, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#47 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8d614a8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0xae7bca0c in KWin::CoverSwitchEffect::paintScreen (this=0x8e3d2d0, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#51 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8cffa40, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#53 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0xb6bf2256 in KWin::Effect::paintScreen (this=0x8e37ba8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0xae7b20c1 in KWin::ZoomEffect::paintScreen (this=0x8e88d58, mask=8, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#57 0xb77ec172 in KWin::EffectsHandlerImpl::paintScreen (this=0x8afd810, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0xb77cb98c in KWin::Scene::paintScreen (this=0x89a44e0, mask=0xbfc86bc8, region=0xbfc86c50) at ../../kwin/scene.cpp:137
#59 0xb77e2962 in KWin::SceneOpenGL::paint (this=0x89a44e0, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#60 0xb77c7886 in KWin::Workspace::performCompositing (this=0x8c9e870) at ../../kwin/composite.cpp:448
#61 0xb6611214 in QObject::event (this=0x8c9e870, e=0xbfc8717c) at kernel/qobject.cpp:1190
#62 0xb5b53d24 in QApplicationPrivate::notify_helper (this=0x88c5930, receiver=0x8c9e870, e=0xbfc8717c) at kernel/qapplication.cpp:4462
#63 0xb5b588ce in QApplication::notify (this=0xbfc87494, receiver=0x8c9e870, e=0xbfc8717c) at kernel/qapplication.cpp:3862
#64 0xb73cc3ca in KApplication::notify (this=0xbfc87494, receiver=0x8c9e870, event=0xbfc8717c) at ../../kdeui/kernel/kapplication.cpp:311
#65 0xb7756abf in KWin::Application::notify (this=0xbfc87494, o=0x8c9e870, e=0xbfc8717c) at ../../kwin/main.cpp:376
#66 0xb65fc0bb in QCoreApplication::notifyInternal (this=0xbfc87494, receiver=0x8c9e870, event=0xbfc8717c) at kernel/qcoreapplication.cpp:731
#67 0xb662c1e4 in sendEvent (this=0x88c70b8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#68 QTimerInfoList::activateTimers (this=0x88c70b8) at kernel/qeventdispatcher_unix.cpp:604
#69 0xb662c338 in QEventDispatcherUNIX::processEvents (this=0x8884aa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#70 0xb5c0b25a in QEventDispatcherX11::processEvents (this=0x8884aa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#71 0xb65fb289 in QEventLoop::processEvents (this=0xbfc873d4, flags=...) at kernel/qeventloop.cpp:149
#72 0xb65fb522 in QEventLoop::exec (this=0xbfc873d4, flags=...) at kernel/qeventloop.cpp:201
#73 0xb65ffecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#74 0xb5b518e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#75 0xb77595b2 in kdemain (argc=3, argv=0xbfc87714) at ../../kwin/main.cpp:542
#76 0x080485bb in main (argc=3, argv=0xbfc87714) at kwin_dummy.cpp:3

Possible duplicates by query: bug 278796, bug 278595, bug 278496, bug 278470, bug 278310.

Reported using DrKonqi