Application: kwin (4.6.5 (4.6.5))
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic i686
Distribution: Ubuntu 11.04

-- Information about the crash:
Comportamiento inusual del escritorio fallo general

The crash can be reproduced some of the time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7899720 (LWP 1549))]

Thread 3 (Thread 0xb2734b70 (LWP 1555)):
#0  0x080d538c in QMutex::lock (this=0x9d49c28) at thread/qmutex.cpp:151
#1  0x081d1a0f in QMutexLocker (receiver=0x0, event_type=0, data=0x9d49c00) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:102
#2  QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x9d49c00) at kernel/qcoreapplication.cpp:1298
#3  0x081fe2ba in QEventDispatcherUNIX::processEvents (this=0x9d55a80, flags=...) at kernel/qeventdispatcher_unix.cpp:891
#4  0x081cd289 in QEventLoop::processEvents (this=0xb2734280, flags=...) at kernel/qeventloop.cpp:149
#5  0x081cd522 in QEventLoop::exec (this=0xb2734280, flags=...) at kernel/qeventloop.cpp:201
#6  0x080d72a0 in QThread::exec (this=0x9d13f58) at thread/qthread.cpp:492
#7  0x081aefdb in QInotifyFileSystemWatcherEngine::run (this=0x9d13f58) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x080d9da2 in QThreadPrivate::start (arg=0x9d13f58) at thread/qthread_unix.cpp:320
#9  0x01f2be99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#10 0x00ec973e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xb1f33b70 (LWP 1556)):
#0  0x001e4416 in __kernel_vsyscall ()
#1  0x01f3048c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x00ed73fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00b05817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0xc191c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00b05851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0xc191c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x01f2be99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x00ec973e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb7899720 (LWP 1549)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x971e668, region=0x0, flag=2) at intel_regions.c:514
#8  0x02d2bce2 in intelClearWithBlit (ctx=0x971e668, mask=2) at intel_blit.c:262
#9  0x02d2e4c0 in intelClear (ctx=0x971e668, mask=2) at intel_clear.c:177
#10 0x03272512 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0x0058877b in KWin::SceneOpenGL::paintBackground (this=0x974aa00, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0x0057f492 in KWin::Scene::paintGenericScreen (this=0x974aa00, orig_mask=32) at ../../kwin/scene.cpp:188
#13 0x00588961 in KWin::SceneOpenGL::paintGenericScreen (this=0x974aa00, mask=32, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0x0057c6f0 in KWin::Scene::finalPaintScreen (this=0x974aa00, mask=32, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0x0059e02c in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=32, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0x02f96159 in KWin::StartupFeedbackEffect::paintScreen (this=0x9aa2c68, mask=32, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0x001a1256 in KWin::Effect::paintScreen (this=0x9c6fe10, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0x02f380af in KWin::LogoutEffect::paintScreen (this=0x9c690a0, mask=32, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0x02f53b40 in KWin::ShadowEffect::paintScreen (this=0x9c2eca0, mask=32, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=32, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0x02f68043 in KWin::BlurEffect::paintScreen (this=0x9aadb28, mask=32, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0x02f3ce9f in KWin::PresentWindowsEffect::paintScreen (this=0x9c4ef68, mask=0, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0x001a1256 in KWin::Effect::paintScreen (this=0x9ab21d8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0x001a1256 in KWin::Effect::paintScreen (this=0x9b8f0a8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0x001a1256 in KWin::Effect::paintScreen (this=0x9c3c140, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0x001a1256 in KWin::Effect::paintScreen (this=0x9b107f8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0x001a1256 in KWin::Effect::paintScreen (this=0x9a8e7c8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#37 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0x001a1256 in KWin::Effect::paintScreen (this=0x9bd8790, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#39 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0x001a1256 in KWin::Effect::paintScreen (this=0x9aa3c70, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#41 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0x02f23809 in KWin::DesktopGridEffect::paintScreen (this=0x9ab3698, mask=0, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:156
#43 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0x001a1256 in KWin::Effect::paintScreen (this=0x9b0aa40, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0x02f76c1c in KWin::CubeEffect::paintScreen (this=0x9b9f5a8, mask=0, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#47 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0x001a1256 in KWin::Effect::paintScreen (this=0x9c3a338, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0x001a1256 in KWin::Effect::paintScreen (this=0x9b78708, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#51 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0x02f7fe40 in KWin::CubeSlideEffect::paintScreen (this=0x9b24428, mask=0, region=..., data=...) at ../../../kwin/effects/cube/cubeslide.cpp:111
#53 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0x001a1256 in KWin::Effect::paintScreen (this=0x9c164c8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0x001a1256 in KWin::Effect::paintScreen (this=0x9bc7028, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#57 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0x02f6fa5c in KWin::CoverSwitchEffect::paintScreen (this=0x9c53d10, mask=0, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#59 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#60 0x02f87272 in KWin::FlipSwitchEffect::paintScreen (this=0xa97ac88, mask=0, region=..., data=...) at ../../../kwin/effects/flipswitch/flipswitch.cpp:148
#61 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#62 0x001a1256 in KWin::Effect::paintScreen (this=0x9b90ac8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#63 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#64 0x001a1256 in KWin::Effect::paintScreen (this=0x9a9f7e8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#65 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#66 0x001a1256 in KWin::Effect::paintScreen (this=0x9b7b3b8, mask=0, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#67 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#68 0x02f650f1 in KWin::ZoomEffect::paintScreen (this=0x9bb8240, mask=0, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#69 0x0059e0a2 in KWin::EffectsHandlerImpl::paintScreen (this=0x98b1238, mask=0, region=..., data=...) at ../../kwin/effects.cpp:169
#70 0x0057d8bc in KWin::Scene::paintScreen (this=0x974aa00, mask=0xbfb40698, region=0xbfb40720) at ../../kwin/scene.cpp:137
#71 0x00594892 in KWin::SceneOpenGL::paint (this=0x974aa00, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#72 0x005797b6 in KWin::Workspace::performCompositing (this=0x9a4e540) at ../../kwin/composite.cpp:448
#73 0x081e3214 in QObject::event (this=0x9a4e540, e=0xbfb40c4c) at kernel/qobject.cpp:1190
#74 0x011a2d24 in QApplicationPrivate::notify_helper (this=0x9660cb0, receiver=0x9a4e540, e=0xbfb40c4c) at kernel/qapplication.cpp:4462
#75 0x011a78ce in QApplication::notify (this=0xbfb40f64, receiver=0x9a4e540, e=0xbfb40c4c) at kernel/qapplication.cpp:3862
#76 0x007b532a in KApplication::notify (this=0xbfb40f64, receiver=0x9a4e540, event=0xbfb40c4c) at ../../kdeui/kernel/kapplication.cpp:311
#77 0x005089ef in KWin::Application::notify (this=0xbfb40f64, o=0x9a4e540, e=0xbfb40c4c) at ../../kwin/main.cpp:376
#78 0x081ce0bb in QCoreApplication::notifyInternal (this=0xbfb40f64, receiver=0x9a4e540, event=0xbfb40c4c) at kernel/qcoreapplication.cpp:731
#79 0x081fe1e4 in sendEvent (this=0x96634d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#80 QTimerInfoList::activateTimers (this=0x96634d0) at kernel/qeventdispatcher_unix.cpp:604
#81 0x081fe338 in QEventDispatcherUNIX::processEvents (this=0x9620ac0, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#82 0x0125a25a in QEventDispatcherX11::processEvents (this=0x9620ac0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#83 0x081cd289 in QEventLoop::processEvents (this=0xbfb40ea4, flags=...) at kernel/qeventloop.cpp:149
#84 0x081cd522 in QEventLoop::exec (this=0xbfb40ea4, flags=...) at kernel/qeventloop.cpp:201
#85 0x081d1ecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#86 0x011a08e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#87 0x0050b4e2 in kdemain (argc=3, argv=0xbfb411e4) at ../../kwin/main.cpp:542
#88 0x080485bb in main (argc=3, argv=0xbfb411e4) at kwin_dummy.cpp:3

Possible duplicates by query: bug 280415, bug 280190, bug 280059, bug 279129, bug 278979.

Reported using DrKonqi