Application: kwin (4.4.4 (KDE 4.4.4) "release 2")
KDE Platform Version: 4.4.4 (KDE 4.4.4) "release 2"
Qt Version: 4.6.3
Operating System: Linux 2.6.34.7-0.2-default i686
Distribution: "openSUSE 11.3 (i586)"

-- Information about the crash:
1. Applications running Konqueror, Opera, Thunderbird, Konsole
2. Downloaded email through Thunderbird (imap)
3. Thunderbird froze
4. Attempt to close thunderbird using kill -QUIT from terminal (Konsole)
5. Kwin crashed

The crash can be reproduced some of the time.

 -- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#6  QProcess::setProcessState (this=0x83339d0, state=QProcess::NotRunning) at io/qprocess.cpp:1709
#7  0xb5c5b117 in QProcessPrivate::cleanup (this=0x817b478) at io/qprocess.cpp:781
#8  0xb5c5fe95 in QProcessPrivate::_q_processDied (this=0x817b478) at io/qprocess.cpp:1041
#9  0xb5c5ffb3 in QProcess::qt_metacall (this=0x827ecf8, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfc98c68) at .moc/release-shared/moc_qprocess.cpp:115
#10 0xb5cc8efd in QMetaObject::metacall (object=0x827ecf8, cl=QMetaObject::InvokeMetaMethod, idx=21, argv=0xbfc98c68) at kernel/qmetaobject.cpp:237
#11 0xb5cd7fe8 in QMetaObject::activate (sender=0xa7d007e0, m=0xb5ddf550, local_signal_index=0, argv=0xbfc98c68) at kernel/qobject.cpp:3295
#12 0xb5d248a5 in QSocketNotifier::activated (this=0xa7d007e0, _t1=23) at .moc/release-shared/moc_qsocketnotifier.cpp:89
#13 0xb5cdd45f in QSocketNotifier::event (this=0xa7d007e0, e=0xbfc990e4) at kernel/qsocketnotifier.cpp:317
#14 0xb5f92c64 in QApplicationPrivate::notify_helper (this=0x8069c80, receiver=0xa7d007e0, e=0xbfc990e4) at kernel/qapplication.cpp:4302
#15 0xb5f9abf7 in QApplication::notify (this=0xbfc993f8, receiver=0xa7d007e0, e=0xbfc990e4) at kernel/qapplication.cpp:3706
#16 0xb71c39d1 in KApplication::notify (this=0xbfc993f8, receiver=0xa7d007e0, event=0xbfc990e4) at /usr/src/debug/kdelibs-4.4.4/kdeui/kernel/kapplication.cpp:302
#17 0xb76097af in ?? () from /usr/lib/libkdeinit4_kwin.so
#18 0xb5cc2e0e in QCoreApplication::notifyInternal (this=0xbfc993f8, receiver=0xa7d007e0, event=0xbfc990e4) at kernel/qcoreapplication.cpp:726
#19 0xb5cee708 in sendEvent (source=0x806ce00) at kernel/qcoreapplication.h:215
#20 socketNotifierSourceDispatch (source=0x806ce00) at kernel/qeventdispatcher_glib.cpp:110
#21 0xb4007b49 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#22 0xb4008350 in ?? () from /usr/lib/libglib-2.0.so.0
#23 0xb400860e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#24 0xb5ceed97 in QEventDispatcherGlib::processEvents (this=0x80547e8, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#25 0xb604319a in QGuiEventDispatcherGlib::processEvents (this=0x80547e8, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0xb5cc211d in QEventLoop::processEvents (this=0xbfc99344, flags=...) at kernel/qeventloop.cpp:149
#27 0xb5cc2319 in QEventLoop::exec (this=0xbfc99344, flags=...) at kernel/qeventloop.cpp:201
#28 0xb5cc6c70 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#29 0xb5f90164 in QApplication::exec () at kernel/qapplication.cpp:3581
#30 0xb769a6dc in kdemain () from /usr/lib/libkdeinit4_kwin.so
#31 0x0804860b in _start ()

Possible duplicates by query: bug 248992, bug 238980, bug 236070, bug 221472, bug 220421.

Reported using DrKonqi