Bug 255467

Application: kwin (4.5.1 (KDE 4.5.1))
KDE Platform Version: 4.5.1 (KDE 4.5.1)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-22-generic i686
Distribution: Ubuntu 10.10

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

KWin closed without advanced notice after desktop starup.

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7782720 (LWP 1667))]

Thread 2 (Thread 0xadd12b70 (LWP 1691)):
#0  0x08813e36 in clock_gettime () from /lib/librt.so.1
#1  0x06ed250b in do_gettime () at tools/qelapsedtimer_unix.cpp:105
#2  qt_gettime () at tools/qelapsedtimer_unix.cpp:119
#3  0x06fa96e5 in QTimerInfoList::updateCurrentTime (this=0x9e78e80) at kernel/qeventdispatcher_unix.cpp:339
#4  0x06fa9d55 in QEventDispatcherUNIXPrivate::doSelect (this=0x9e787e0, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:182
#5  0x06faac25 in QEventDispatcherUNIX::processEvents (this=0x9e2e6b0, flags=...) at kernel/qeventdispatcher_unix.cpp:919
#6  0x06f77609 in QEventLoop::processEvents (this=0xadd12280, flags=) at kernel/qeventloop.cpp:149
#7  0x06f77a8a in QEventLoop::exec (this=0xadd12280, flags=...) at kernel/qeventloop.cpp:201
#8  0x06e73b7e in QThread::exec (this=0x9cbe750) at thread/qthread.cpp:490
#9  0x06f5635b in QInotifyFileSystemWatcherEngine::run (this=0x9cbe750) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x06e76df9 in QThreadPrivate::start (arg=0x9cbe750) at thread/qthread_unix.cpp:266
#11 0x00686cc9 in start_thread () from /lib/libpthread.so.0
#12 0x00e956ae in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7782720 (LWP 1667)):
[KCrash Handler]
#7  0x00a07e3f in KWin::WindowPaintData::WindowPaintData (this=0xbfe2c770, w=0x652541) at ../../../kwin/lib/kwineffects.cpp:76
#8  0x03d477a0 in KWin::CoverSwitchEffect::paintFrontWindow (this=0x9cf0fe8, frontWindow=0x652541, width=1024, leftWindows=0, rightWindows=0, reflectedWindow=true) at ../../../kwin/effects/coverswitch/coverswitch.cpp:785
#9  0x03d47e73 in KWin::CoverSwitchEffect::paintScene (this=0x9cf0fe8, frontWindow=0x652541, leftWindows=..., rightWindows=..., reflectedWindows=true) at ../../../kwin/effects/coverswitch/coverswitch.cpp:444
#10 0x03d48c24 in KWin::CoverSwitchEffect::paintScreen (this=0x9cf0fe8, mask=32, region=..., data=...) at ../../../kwin/effects/coverswitch/coverswitch.cpp:252
#11 0x001e87d0 in KWin::EffectsHandlerImpl::paintScreen (this=0x9c92688, mask=32, region=..., data=...) at ../../kwin/effects.cpp:168
#12 0x00a05446 in KWin::Effect::paintScreen (this=0x9cec6d8, mask=32, region=..., data=...) at ../../../kwin/lib/kwineffects.cpp:227
#13 0x001e87d0 in KWin::EffectsHandlerImpl::paintScreen (this=0x9c92688, mask=32, region=..., data=...) at ../../kwin/effects.cpp:168
#14 0x03d40370 in KWin::ZoomEffect::paintScreen (this=0x9cca718, mask=32, region=..., data=...) at ../../../kwin/effects/zoom/zoom.cpp:73
#15 0x001e87d0 in KWin::EffectsHandlerImpl::paintScreen (this=0x9c92688, mask=32, region=..., data=...) at ../../kwin/effects.cpp:168
#16 0x001cd254 in KWin::Scene::paintScreen (this=0x995cbc0, mask=0xbfe2cc98, region=0xbfe2cd64) at ../../kwin/scene.cpp:137
#17 0x001dfe8a in KWin::SceneOpenGL::paint (this=0x995cbc0, damage=..., toplevels=...) at ../../kwin/scene_opengl.cpp:754
#18 0x001c7be4 in KWin::Workspace::performCompositing (this=0xb4b3aa50) at ../../kwin/composite.cpp:454
#19 0x00138c1e in KWin::Workspace::qt_metacall (this=0xb4b3aa50, _c=QMetaObject::InvokeMetaMethod, _id=190, _a=0xbfe2ce8c) at ./workspace.moc:583
#20 0x06f7e8ca in QMetaObject::metacall (object=0xb4b3aa50, cl=QMetaObject::InvokeMetaMethod, idx=190, argv=0xbfe2ce8c) at kernel/qmetaobject.cpp:237
#21 0x06f916ad in QMetaObject::activate (sender=0xb4b3ad00, m=0x70ab5a4, local_signal_index=0, argv=0x6e697474) at kernel/qobject.cpp:3280
#22 0x06fe31e7 in QTimer::timeout (this=0xb4b3ad00) at .moc/release-shared/moc_qtimer.cpp:134
#23 0x06f971ce in QTimer::timerEvent (this=0xb4b3ad00, e=0xbfe2d3e0) at kernel/qtimer.cpp:271
#24 0x06f8b504 in QObject::event (this=0xb4b3ad00, e=0xbfe2c770) at kernel/qobject.cpp:1183
#25 0x030b2fdc in QApplicationPrivate::notify_helper (this=0x9890198, receiver=0xb4b3ad00, e=0xbfe2d3e0) at kernel/qapplication.cpp:4396
#26 0x030b904e in QApplication::notify (this=0xbfe2d6e4, receiver=0xb4b3ad00, e=0xbfe2d3e0) at kernel/qapplication.cpp:3798
#27 0x004a268a in KApplication::notify (this=0xbfe2d6e4, receiver=0xb4b3ad00, event=0xbfe2d3e0) at ../../kdeui/kernel/kapplication.cpp:310
#28 0x00155aef in KWin::Application::notify (this=0xbfe2d6e4, o=0xb4b3ad00, e=0xbfe2d3e0) at ../../kwin/main.cpp:372
#29 0x06f78b3b in QCoreApplication::notifyInternal (this=0xbfe2d6e4, receiver=0xb4b3ad00, event=0xbfe2d3e0) at kernel/qcoreapplication.cpp:732
#30 0x06faaad6 in sendEvent (this=0x9890930) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#31 QTimerInfoList::activateTimers (this=0x9890930) at kernel/qeventdispatcher_unix.cpp:602
#32 0x06faac37 in QEventDispatcherUNIX::processEvents (this=0x9873980, flags=...) at kernel/qeventdispatcher_unix.cpp:923
#33 0x031760d2 in QEventDispatcherX11::processEvents (this=0x9873980, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#34 0x06f77609 in QEventLoop::processEvents (this=0xbfe2d634, flags=) at kernel/qeventloop.cpp:149
#35 0x06f77a8a in QEventLoop::exec (this=0xbfe2d634, flags=...) at kernel/qeventloop.cpp:201
#36 0x06f7c00f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#37 0x030b1e07 in QApplication::exec () at kernel/qapplication.cpp:3672
#38 0x00157c54 in kdemain (argc=3, argv=0xbfe2d944) at ../../kwin/main.cpp:531
#39 0x080485ab in main (argc=3, argv=0xbfe2d944) at kwin_dummy.cpp:3

Possible duplicates by query: bug 242134.

Reported using DrKonqi