Application: kwin (4.4.2 (KDE 4.4.2))
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-21-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
After reactivating the border drawing around a window (firefox) by shortcut, right clicking on the window bar crashes kwin.

The crash can be reproduced some of the time.

 -- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7713720 (LWP 2454))]

Thread 2 (Thread 0xab579b70 (LWP 2458)):
#0  0x00a29e16 in clock_gettime () from /lib/tls/i686/cmov/librt.so.1
#1  0x0657f6fb in qt_gettime () at kernel/qcore_unix.cpp:111
#2  0x06584825 in QTimerInfoList::updateCurrentTime (this=0xaac005b4) at kernel/qeventdispatcher_unix.cpp:340
#3  0x0658486a in QTimerInfoList::timerWait (this=0xaac005b4, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#4  0x06582818 in timerSourcePrepareHelper (src=<value optimized out>, timeout=0xab5790bc) at kernel/qeventdispatcher_glib.cpp:136
#5  0x065828a5 in timerSourcePrepare (source=0x0, timeout=0xa2dff4) at kernel/qeventdispatcher_glib.cpp:169
#6  0x0473caca in g_main_context_prepare () from /lib/libglib-2.0.so.0
#7  0x0473cee9 in ?? () from /lib/libglib-2.0.so.0
#8  0x0473d4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#9  0x0658260f in QEventDispatcherGlib::processEvents (this=0x8fced58, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#10 0x06555059 in QEventLoop::processEvents (this=0xab579280, flags=) at kernel/qeventloop.cpp:149
#11 0x065554aa in QEventLoop::exec (this=0xab579280, flags=...) at kernel/qeventloop.cpp:201
#12 0x064515a8 in QThread::exec (this=0x8c85cb8) at thread/qthread.cpp:487
#13 0x06534c1b in QInotifyFileSystemWatcherEngine::run (this=0x8c85cb8) at io/qfilesystemwatcher_inotify.cpp:248
#14 0x0645432e in QThreadPrivate::start (arg=0x8c85cb8) at thread/qthread_unix.cpp:248
#15 0x007a596e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0x002a5a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7713720 (LWP 2454)):
[KCrash Handler]
#6  QList<KWin::Client*>::detach (this=0x0, index=0, pos=...) at /usr/include/qt4/QtCore/qlist.h:122
#7  QList<KWin::Client*>::operator[] (this=0x0, index=0, pos=...) at /usr/include/qt4/QtCore/qlist.h:448
#8  KWin::ClientGroup::displayClientMenu (this=0x0, index=0, pos=...) at ../../kwin/clientgroup.cpp:245
#9  0x008901c4 in KWin::Bridge::displayClientMenu (this=0x9559de0, index=0, pos=...) at ../../kwin/bridge.cpp:288
#10 0x0018eb25 in KDecorationUnstable::displayClientMenu (this=0x952ff70, index=0, pos=...) at ../../../kwin/lib/kdecoration.cpp:468
#11 0x00194473 in KCommonDecorationUnstable::displayClientMenu (this=0x95495c8, index=0, pos=...) at ../../../kwin/lib/kcommondecoration.cpp:1340
#12 0x063aa633 in Oxygen::OxygenClient::mousePressEvent (this=0x95495c8, event=0xbfa3dbb0) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1469
#13 0x063aa8c8 in Oxygen::OxygenClient::eventFilter (this=0x95495c8, object=0x938dd98, event=0xbfa3dbb0) at ../../../../kwin/clients/oxygen/oxygenclient.cpp:1266
#14 0x06555cda in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0x8c4b488, receiver=0x938dd98, event=0xbfa3dbb0) at kernel/qcoreapplication.cpp:819
#15 0x03bc94b9 in QApplicationPrivate::notify_helper (this=0x8c4b488, receiver=0x938dd98, e=0xbfa3dbb0) at kernel/qapplication.cpp:4296
#16 0x03bd09f7 in QApplication::notify (this=0xbfa3e478, receiver=0x938dd98, e=0xbfa3dbb0) at kernel/qapplication.cpp:3865
#17 0x00c0ff2a in KApplication::notify (this=0xbfa3e478, receiver=0x938dd98, event=0xbfa3dbb0) at ../../kdeui/kernel/kapplication.cpp:302
#18 0x0085ddef in KWin::Application::notify (this=0xbfa3e478, o=0x938dd98, e=0xbfa3dbb0) at ../../kwin/main.cpp:370
#19 0x06556a3b in QCoreApplication::notifyInternal (this=0xbfa3e478, receiver=0x938dd98, event=0xbfa3dbb0) at kernel/qcoreapplication.cpp:704
#20 0x03bcf952 in QCoreApplication::sendEvent (receiver=0x938dd98, event=0xbfa3dbb0, alienWidget=0x0, nativeWidget=0x938dd98, buttonDown=0x450d058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#21 QApplicationPrivate::sendMouseEvent (receiver=0x938dd98, event=0xbfa3dbb0, alienWidget=0x0, nativeWidget=0x938dd98, buttonDown=0x450d058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2965
#22 0x03c5b088 in QETWidget::translateMouseEvent (this=0x938dd98, event=0xbfa3e0cc) at kernel/qapplication_x11.cpp:4368
#23 0x03c5a511 in QApplication::x11ProcessEvent (this=0xbfa3e478, event=0xbfa3e0cc) at kernel/qapplication_x11.cpp:3379
#24 0x03c8960a in x11EventSourceDispatch (s=0x8c4e740, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#25 0x047395e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#26 0x0473d2d8 in ?? () from /lib/libglib-2.0.so.0
#27 0x0473d4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#28 0x065825d5 in QEventDispatcherGlib::processEvents (this=0x8c35de8, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#29 0x03c89135 in QGuiEventDispatcherGlib::processEvents (this=0x8c35de8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#30 0x06555059 in QEventLoop::processEvents (this=0xbfa3e3c4, flags=) at kernel/qeventloop.cpp:149
#31 0x065554aa in QEventLoop::exec (this=0xbfa3e3c4, flags=...) at kernel/qeventloop.cpp:201
#32 0x0655969f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#33 0x03bc9577 in QApplication::exec () at kernel/qapplication.cpp:3579
#34 0x0085fa00 in kdemain (argc=1, argv=0xbfa3e684) at ../../kwin/main.cpp:526
#35 0x0804860b in main (argc=1, argv=0xbfa3e684) at kwin_dummy.cpp:3

This bug may be a duplicate of or related to bug 222813.

Possible duplicates by query: bug 222813.

Reported using DrKonqi