Application: kwin (4.7.00 (4.7.0))
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
I opened Neverball, and switched it to fullscreen mode. When I exited the game, Kwin crashed. This does not happen when desktop effects are disabled. I also have the option to suspend desktop effects for fullscreen windows, but it does not fix this problem. All other games I play exhibit this behavior.

I have this problem on both Kubuntu 11.04 with KDE 4.7 packages, as well as Arch. This problem also happened with KDE 4.6.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fd6e0dd37a0 (LWP 1467))]

Thread 3 (Thread 0x7fd6c2a18700 (LWP 1561)):
#0  0x00007fd6e0616143 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fd6dc9fd32c in qt_safe_select (nfds=18, fdread=0x3bd92e0, fdwrite=0x3bd9578, fdexcept=0x3bd9810, orig_timeout=<value optimized out>) at kernel/qcore_unix.cpp:82
#2  0x00007fd6dca023d0 in QEventDispatcherUNIXPrivate::doSelect (this=0x3bd9120, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#3  0x00007fd6dca0304a in QEventDispatcherUNIX::processEvents (this=0x3bd8a20, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#4  0x00007fd6dc9d4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fd6dc9d4abc in QEventLoop::exec (this=0x7fd6c2a17db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fd6dc8eb924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fd6dc9b6c2f in QInotifyFileSystemWatcherEngine::run (this=0x3853050) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fd6dc8ee175 in QThreadPrivate::start (arg=0x3853050) at thread/qthread_unix.cpp:320
#9  0x00007fd6d6feed8c in start_thread (arg=0x7fd6c2a18700) at pthread_create.c:304
#10 0x00007fd6e061e04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fd6c2217700 (LWP 1565)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fd6df47e2a2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x7fd6df797180) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x00007fd6df47e2d9 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fd6df7a5254) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00007fd6d6feed8c in start_thread (arg=0x7fd6c2217700) at pthread_create.c:304
#4  0x00007fd6e061e04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fd6e0dd37a0 (LWP 1467)):
[KCrash Handler]
#6  intel_region_buffer (intel=0x4f405e0, region=0x0, flag=2) at intel_regions.c:514
#7  0x00007fd6c96636c2 in intelClearWithBlit (ctx=0x4f405e0, mask=2) at intel_blit.c:262
#8  0x00007fd6c9665d2a in intelClear (ctx=0x4f405e0, mask=2) at intel_clear.c:177
#9  0x00007fd6e09a0ffc in KWin::SceneOpenGL::paintBackground (this=<value optimized out>, region=<value optimized out>) at ../../kwin/scene_opengl.cpp:182
#10 0x00007fd6e098d56f in KWin::Scene::paintGenericScreen (this=0x26c7460, orig_mask=512) at ../../kwin/scene.cpp:185
#11 0x00007fd6e099af7b in KWin::SceneOpenGL::paintGenericScreen (this=0x26c7460, mask=512, data=...) at ../../kwin/scene_opengl.cpp:169
#12 0x00007fd6e098a94a in KWin::Scene::finalPaintScreen (this=0x26c7460, mask=512, region=<value optimized out>, data=<value optimized out>) at ../../kwin/scene.cpp:175
#13 0x00007fd6e09ae969 in KWin::EffectsHandlerImpl::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:215
#14 0x00007fd6c871be06 in KWin::StartupFeedbackEffect::paintScreen (this=0x39a6850, mask=512, region=<value optimized out>, data=...) at ../../../kwin/effects/startupfeedback/startupfeedback.cpp:174
#15 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#16 0x00007fd6c86a4db6 in KWin::OutlineEffect::paintScreen (this=0x3a2fb20, mask=512, region=<value optimized out>, data=...) at ../../../kwin/effects/outline/outline.cpp:44
#17 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#18 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#19 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#20 0x00007fd6c86e560d in KWin::LogoutEffect::paintScreen (this=0x3a1dda0, mask=512, region=..., data=...) at ../../../kwin/effects/logout/logout.cpp:200
#21 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#22 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#23 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#24 0x00007fd6c86a50a9 in KWin::PresentWindowsEffect::paintScreen (this=0x4e6e400, mask=512, region=..., data=...) at ../../../kwin/effects/presentwindows/presentwindows.cpp:216
#25 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#26 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#27 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#28 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#29 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#30 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#31 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#32 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#33 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#34 0x00007fd6c86c231d in KWin::DesktopGridEffect::paintScreen (this=<value optimized out>, mask=512, region=..., data=...) at ../../../kwin/effects/desktopgrid/desktopgrid.cpp:161
#35 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#36 0x00007fd6c86bc06d in KWin::BoxSwitchEffect::paintScreen (this=0x3a4be00, mask=512, region=..., data=...) at ../../../kwin/effects/boxswitch/boxswitch.cpp:137
#37 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#38 0x00007fd6c86fbe16 in KWin::CubeEffect::paintScreen (this=<value optimized out>, mask=512, region=..., data=...) at ../../../kwin/effects/cube/cube.cpp:578
#39 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#40 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#41 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#42 0x00007fd6c8707484 in KWin::CubeSlideEffect::paintScreen (this=<value optimized out>, mask=512, region=..., data=...) at ../../../kwin/effects/cube/cubeslide.cpp:117
#43 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#44 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#45 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#46 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#47 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#48 0x00007fd6c86eed76 in KWin::CoverSwitchEffect::paintScreen (this=0x3a6c6d0, mask=512, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:136
#49 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#50 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#51 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#52 0x00007fd6dea6b968 in KWin::Effect::paintScreen (this=<value optimized out>, mask=512, region=<value optimized out>, data=...) at ../../../kwin/libkwineffects/kwineffects.cpp:142
#53 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#54 0x00007fd6c86e1abd in KWin::ZoomEffect::paintScreen (this=0x38b38a0, mask=512, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:324
#55 0x00007fd6e09ae9f3 in KWin::EffectsHandlerImpl::paintScreen (this=0x3905200, mask=512, region=<value optimized out>, data=...) at ../../kwin/effects.cpp:212
#56 0x00007fd6e098cd8f in KWin::Scene::paintScreen (this=0x26c7460, mask=0x7fffd42c8d9c, region=0x7fffd42c8e80) at ../../kwin/scene.cpp:136
#57 0x00007fd6e09a4e23 in KWin::SceneOpenGL::paint (this=0x26c7460, damage=..., toplevels=<value optimized out>) at ../../kwin/scene_opengl_glx.cpp:455
#58 0x00007fd6e0987895 in KWin::Workspace::performCompositing (this=0x7fd6c4353ed0) at ../../kwin/composite.cpp:432
#59 0x00007fd6dc9e91c9 in QObject::event (this=0x7fd6c4353ed0, e=<value optimized out>) at kernel/qobject.cpp:1190
#60 0x00007fd6dbd929f4 in QApplicationPrivate::notify_helper (this=0x23a2670, receiver=0x7fd6c4353ed0, e=0x7fffd42c9600) at kernel/qapplication.cpp:4462
#61 0x00007fd6dbd973ba in QApplication::notify (this=<value optimized out>, receiver=0x7fd6c4353ed0, e=0x7fffd42c9600) at kernel/qapplication.cpp:4341
#62 0x00007fd6e010c796 in KApplication::notify (this=0x7fffd42c9a00, receiver=0x7fd6c4353ed0, event=0x7fffd42c9600) at ../../kdeui/kernel/kapplication.cpp:311
#63 0x00007fd6dc9d549c in QCoreApplication::notifyInternal (this=0x7fffd42c9a00, receiver=0x7fd6c4353ed0, event=0x7fffd42c9600) at kernel/qcoreapplication.cpp:731
#64 0x00007fd6dca02f12 in sendEvent (this=0x23a54c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#65 QTimerInfoList::activateTimers (this=0x23a54c0) at kernel/qeventdispatcher_unix.cpp:604
#66 0x00007fd6dca0305b in QEventDispatcherUNIX::processEvents (this=0x233e2e0, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#67 0x00007fd6dbe3d2ec in QEventDispatcherX11::processEvents (this=0x233e2e0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#68 0x00007fd6dc9d4882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#69 0x00007fd6dc9d4abc in QEventLoop::exec (this=0x7fffd42c9940, flags=...) at kernel/qeventloop.cpp:201
#70 0x00007fd6dc9d8ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#71 0x00007fd6e0926bfe in kdemain (argc=<value optimized out>, argv=0x7fffd42ca068) at ../../kwin/main.cpp:514
#72 0x00007fd6e0556eff in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, ubp_av=0x7fffd42ca068, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffd42ca058) at libc-start.c:226
#73 0x0000000000400659 in _start ()

Possible duplicates by query: bug 280613, bug 280499, bug 280415, bug 280190, bug 280059.

Reported using DrKonqi