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:
Watching a movie on Amazon and/or Hulu/Keep getting a screen that shows

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7723720 (LWP 1243))]

Thread 3 (Thread 0xb2df2b70 (LWP 1249)):
#0  0x00134416 in __kernel_vsyscall ()
#1  0x001fe681 in select () from /lib/i386-linux-gnu/libc.so.6
#2  0x03db638b in qt_safe_select (nfds=17, fdread=0x9280dc0, fdwrite=0x9280fd4, fdexcept=0x92811e8, orig_timeout=0x0) at kernel/qcore_unix.cpp:82
#3  0x03dba6e9 in QEventDispatcherUNIX::select (this=0x94f3bc8, nfds=17, readfds=0x9280dc0, writefds=0x9280fd4, exceptfds=0x92811e8, timeout=0x0) at kernel/qeventdispatcher_unix.cpp:632
#4  0x03dbb66b in QEventDispatcherUNIXPrivate::doSelect (this=0x9280cc8, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#5  0x03dbc326 in QEventDispatcherUNIX::processEvents (this=0x94f3bc8, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0x03d8b289 in QEventLoop::processEvents (this=0xb2df2280, flags=...) at kernel/qeventloop.cpp:149
#7  0x03d8b522 in QEventLoop::exec (this=0xb2df2280, flags=...) at kernel/qeventloop.cpp:201
#8  0x03c952a0 in QThread::exec (this=0x9504698) at thread/qthread.cpp:492
#9  0x03d6cfdb in QInotifyFileSystemWatcherEngine::run (this=0x9504698) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x03c97da2 in QThreadPrivate::start (arg=0x9504698) at thread/qthread_unix.cpp:320
#11 0x07562e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#12 0x0020573e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 2 (Thread 0xb25e9b70 (LWP 1250)):
#0  0x00134416 in __kernel_vsyscall ()
#1  0x0756748c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i386-linux-gnu/libpthread.so.0
#2  0x002133fd in pthread_cond_wait () from /lib/i386-linux-gnu/libc.so.6
#3  0x00f08817 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x101c1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4  0x00f08851 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x101c1c0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5  0x07562e99 in start_thread () from /lib/i386-linux-gnu/libpthread.so.0
#6  0x0020573e in clone () from /lib/i386-linux-gnu/libc.so.6

Thread 1 (Thread 0xb7723720 (LWP 1243)):
[KCrash Handler]
#7  intel_region_buffer (intel=0x8ecfb50, region=0x0, flag=2) at intel_regions.c:514
#8  0x043b7ce2 in intelClearWithBlit (ctx=0x8ecfb50, mask=2) at intel_blit.c:262
#9  0x043ba4c0 in intelClear (ctx=0x8ecfb50, mask=2) at intel_clear.c:177
#10 0x0459f512 in _mesa_Clear (mask=<value optimized out>) at main/clear.c:241
#11 0x0084284b in KWin::SceneOpenGL::paintBackground (this=0x8f02628, region=...) at ../../kwin/scene_opengl.cpp:921
#12 0x00839562 in KWin::Scene::paintGenericScreen (this=0x8f02628, orig_mask=40) at ../../kwin/scene.cpp:188
#13 0x00842a31 in KWin::SceneOpenGL::paintGenericScreen (this=0x8f02628, mask=40, data=...) at ../../kwin/scene_opengl.cpp:909
#14 0x008367c0 in KWin::Scene::finalPaintScreen (this=0x8f02628, mask=40, region=..., data=...) at ../../kwin/scene.cpp:178
#15 0x008580fc in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=40, region=..., data=...) at ../../kwin/effects.cpp:173
#16 0x073090e9 in KWin::StartupFeedbackEffect::paintScreen (this=0x9375518, mask=40, region=..., data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:166
#17 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#18 0x00583256 in KWin::Effect::paintScreen (this=0x93f9b88, mask=40, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#19 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#20 0x072ab07f in KWin::LogoutEffect::paintScreen (this=0x934d048, mask=40, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:207
#21 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#22 0x072c6b10 in KWin::ShadowEffect::paintScreen (this=0x93cc1b8, mask=40, region=..., data=...) at ../../../kwin/effects/shadow/shadow.cpp:189
#23 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=40, region=..., data=...) at ../../kwin/effects.cpp:169
#24 0x072db013 in KWin::BlurEffect::paintScreen (this=0x925e3c0, mask=40, region=..., data=...) at ../../../kwin/effects/blur/blur.cpp:230
#25 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#26 0x072afe6f in KWin::PresentWindowsEffect::paintScreen (this=0x93f6740, mask=8, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:205
#27 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#28 0x00583256 in KWin::Effect::paintScreen (this=0x93b1f10, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#29 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#30 0x00583256 in KWin::Effect::paintScreen (this=0x9403200, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#31 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#32 0x00583256 in KWin::Effect::paintScreen (this=0x9254c08, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#33 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#34 0x00583256 in KWin::Effect::paintScreen (this=0x92b7d68, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#35 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#36 0x072967e9 in KWin::DesktopGridEffect::paintScreen (this=0x923e5c8, mask=8, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:155
#37 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#38 0x072cdce2 in KWin::SlideEffect::paintScreen (this=0x92d9180, mask=8, region=..., data=...) at ../../../kwin/effects/slide/slide.cpp:86
#39 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#40 0x0728f799 in KWin::BoxSwitchEffect::paintScreen (this=0x93b0f58, mask=8, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:143
#41 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#42 0x072e9bcc in KWin::CubeEffect::paintScreen (this=0x941d5a0, mask=8, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:698
#43 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#44 0x00583256 in KWin::Effect::paintScreen (this=0x933e1d8, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#45 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#46 0x00583256 in KWin::Effect::paintScreen (this=0x941e678, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#47 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#48 0x00583256 in KWin::Effect::paintScreen (this=0x932bd08, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#49 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#50 0x072e2a0c in KWin::CoverSwitchEffect::paintScreen (this=0x9402f90, mask=8, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:126
#51 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#52 0x00583256 in KWin::Effect::paintScreen (this=0x9260f00, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#53 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#54 0x00583256 in KWin::Effect::paintScreen (this=0x933e250, mask=8, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#55 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#56 0x072d80c1 in KWin::ZoomEffect::paintScreen (this=0x939b980, mask=8, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:341
#57 0x00858172 in KWin::EffectsHandlerImpl::paintScreen (this=0x920f170, mask=8, region=..., data=...) at ../../kwin/effects.cpp:169
#58 0x0083798c in KWin::Scene::paintScreen (this=0x8f02628, mask=0xbfe26f38, region=0xbfe26fc0) at ../../kwin/scene.cpp:137
#59 0x0084e962 in KWin::SceneOpenGL::paint (this=0x8f02628, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:772
#60 0x00833886 in KWin::Workspace::performCompositing (this=0x91ffa18) at ../../kwin/composite.cpp:448
#61 0x03da1214 in QObject::event (this=0x91ffa18, e=0xbfe274ec) at kernel/qobject.cpp:1190
#62 0x02ae7d24 in QApplicationPrivate::notify_helper (this=0x8e2b4a0, receiver=0x91ffa18, e=0xbfe274ec) at kernel/qapplication.cpp:4462
#63 0x02aec8ce in QApplication::notify (this=0xbfe27804, receiver=0x91ffa18, e=0xbfe274ec) at kernel/qapplication.cpp:3862
#64 0x00bb83ca in KApplication::notify (this=0xbfe27804, receiver=0x91ffa18, event=0xbfe274ec) at ../../kdeui/kernel/kapplication.cpp:311
#65 0x007c2abf in KWin::Application::notify (this=0xbfe27804, o=0x91ffa18, e=0xbfe274ec) at ../../kwin/main.cpp:376
#66 0x03d8c0bb in QCoreApplication::notifyInternal (this=0xbfe27804, receiver=0x91ffa18, event=0xbfe274ec) at kernel/qcoreapplication.cpp:731
#67 0x03dbc1e4 in sendEvent (this=0x8e2bdf8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#68 QTimerInfoList::activateTimers (this=0x8e2bdf8) at kernel/qeventdispatcher_unix.cpp:604
#69 0x03dbc338 in QEventDispatcherUNIX::processEvents (this=0x8de9aa8, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#70 0x02b9c7ea in QEventDispatcherX11::processEvents (this=0x8de9aa8, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#71 0x03d8b289 in QEventLoop::processEvents (this=0xbfe27744, flags=...) at kernel/qeventloop.cpp:149
#72 0x03d8b522 in QEventLoop::exec (this=0xbfe27744, flags=...) at kernel/qeventloop.cpp:201
#73 0x03d8fecc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#74 0x02ae58e7 in QApplication::exec () at kernel/qapplication.cpp:3736
#75 0x007c55b2 in kdemain (argc=3, argv=0xbfe27a84) at ../../kwin/main.cpp:542
#76 0x080485bb in main (argc=3, argv=0xbfe27a84) at kwin_dummy.cpp:3

Possible duplicates by query: bug 272118, bug 272106, bug 272102, bug 272069, bug 272021.

Reported using DrKonqi