Application: kwin (4.5.00 (KDE 4.5.0))
KDE Platform Version: 4.5.00 (KDE 4.5.0)
Qt Version: 4.6.3
Operating System: Linux 2.6.34-12-desktop x86_64
Distribution: "openSUSE 11.3 (x86_64)"

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

Hit Ctrl + F8 (or the shortcut associated to grid effect) frenetically for 3 seconds. KWin crashes everytime. If the "Speed of animation" is set to "Ultra fast" (translated from French so it might not be how it is called in English); it crashes sooner.

The crash can be reproduced every time.

-- Backtrace:
Application: KWin (kwin), signal: Aborted
[KCrash Handler]
#6  0x00007f8d015ce9e5 in raise () from /lib64/libc.so.6
#7  0x00007f8d015cfee6 in abort () from /lib64/libc.so.6
#8  0x00007f8d0195a43d in KWin::EffectWindowImpl::unrefWindow (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:1289
#9  0x00007f8ce911f48d in KWin::DesktopGridEffect::finish (this=0xf92c70) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects/desktopgrid/desktopgrid.cpp:1322
#10 0x00007f8ce911ffa4 in KWin::DesktopGridEffect::prePaintScreen (this=0xf92c70, data=..., time=1) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects/desktopgrid/desktopgrid.cpp:146
#11 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#12 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#13 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#14 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#15 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#16 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#17 0x00007f8d019875ef in KWin::EffectsHandlerImpl::prePaintScreen (this=0x8b7cc0, data=<value optimized out>, time=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.5.0/kwin/effects.cpp:158
#18 0x00007f8d01983182 in KWin::Scene::paintScreen (this=0x80f8b0, mask=0x7fff74c24f6c, region=0x7fff74c25080) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/scene.cpp:116
#19 0x00007f8d019b64e9 in KWin::SceneOpenGL::paint (this=0x80f8b0, damage=..., toplevels=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/scene_opengl.cpp:748
#20 0x00007f8d019973f9 in KWin::Workspace::performCompositing (this=0x6c5640) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/composite.cpp:454
#21 0x00007f8d019c4c15 in KWin::Workspace::qt_metacall (this=0x6c5640, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff74c25220)
    at /usr/src/debug/kdebase-workspace-4.5.0/build/kwin/workspace.moc:583
#22 0x00007f8cfdf22a1f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib64/libQtCore.so.4
#23 0x00007f8cfdf2022e in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#24 0x00007f8cfd0e34d4 in QApplicationPrivate::notify_helper (this=0x633ef0, receiver=0x6c5b08, e=0x7fff74c259c0) at kernel/qapplication.cpp:4302
#25 0x00007f8cfd0ebaca in QApplication::notify (this=<value optimized out>, receiver=0x6c5b08, e=0x7fff74c259c0) at kernel/qapplication.cpp:4185
#26 0x00007f8d011090b6 in KApplication::notify (this=0x7fff74c25ed0, receiver=0x6c5b08, event=0x7fff74c259c0) at /usr/src/debug/kdelibs-4.5.0/kdeui/kernel/kapplication.cpp:310
#27 0x00007f8cfdf0ee4c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#28 0x00007f8cfdf3a0c9 in ?? () from /usr/lib64/libQtCore.so.4
#29 0x00007f8cfdf3a8c0 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#30 0x00007f8cfd184cbc in QEventDispatcherX11::processEvents (this=0x6126d0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#31 0x00007f8cfdf0e292 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#32 0x00007f8cfdf0e495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#33 0x00007f8cfdf1288b in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#34 0x00007f8d019c3314 in kdemain (argc=<value optimized out>, argv=0x7fff74c25ed0) at /usr/src/debug/kdebase-workspace-4.5.0/kwin/main.cpp:531
#35 0x00007f8d015bab7d in __libc_start_main () from /lib64/libc.so.6
#36 0x0000000000400699 in _start () at ../sysdeps/x86_64/elf/start.S:113

This bug may be a duplicate of or related to bug 244813.

Possible duplicates by query: bug 246503.

Reported using DrKonqi