Application that crashed: kwin
Version of the application: 4.3.5 (KDE 4.3.5) "release 0"
KDE Version: 4.3.5 (KDE 4.3.5) "release 0"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.12-0.2-default x86_64
Distribution: "openSUSE 11.2 (x86_64)"

What I was doing when the application crashed:
While waiting for the Terminate Application Dialog to finish, the whole system froze and after about 10 seconds KWin crashed.

 -- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[KCrash Handler]
#5  QProcess::setProcessState (this=0x4f754e0, state=NotRunning) at io/qprocess.cpp:1329
#6  0x00007f658ce91c2f in QProcessPrivate::cleanup (this=0x5743980) at io/qprocess.cpp:455
#7  0x00007f658ce96c53 in QProcessPrivate::_q_processDied (this=0x5743980) at io/qprocess.cpp:708
#8  0x00007f658ce96d49 in QProcess::qt_metacall (this=0x577de70, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7ffffc8a6b30) at .moc/release-shared/moc_qprocess.cpp:109
#9  0x00007f658cf04fbc in QMetaObject::activate (sender=0x5933150, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#10 0x00007f658cf3b76e in QSocketNotifier::activated (this=0x4f754e0, _t1=21) at .moc/release-shared/moc_qsocketnotifier.cpp:83
#11 0x00007f658cf09953 in QSocketNotifier::event (this=0x5933150, e=0x7ffffc8a7070) at kernel/qsocketnotifier.cpp:316
#12 0x00007f658d5ed2ac in QApplicationPrivate::notify_helper (this=0x623d10, receiver=0x5933150, e=0x7ffffc8a7070) at kernel/qapplication.cpp:4065
#13 0x00007f658d5f457e in QApplication::notify (this=0x7ffffc8a7390, receiver=0x5933150, e=0x7ffffc8a7070) at kernel/qapplication.cpp:4030
#14 0x00007f65906a1016 in KApplication::notify (this=0x7ffffc8a7390, receiver=0x5933150, event=0x7ffffc8a7070) at /usr/src/debug/kdelibs-4.3.5/kdeui/kernel/kapplication.cpp:302
#15 0x00007f658ceefddc in QCoreApplication::notifyInternal (this=0x7ffffc8a7390, receiver=0x5933150, event=0x7ffffc8a7070) at kernel/qcoreapplication.cpp:610
#16 0x00007f658cf186fa in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#17 socketNotifierSourceDispatch (event=<value optimized out>, receiver=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:110
#18 0x00007f6586c74dee in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f6586c787b8 in ?? () from /usr/lib64/libglib-2.0.so.0
#20 0x00007f6586c788e0 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#21 0x00007f658cf183a3 in QEventDispatcherGlib::processEvents (this=0x609640, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#22 0x00007f658d68031e in QGuiEventDispatcherGlib::processEvents (this=0x4f754e0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#23 0x00007f658ceee712 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#24 0x00007f658ceeeae4 in QEventLoop::exec (this=0x7ffffc8a72d0, flags=) at kernel/qeventloop.cpp:201
#25 0x00007f658cef0c99 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#26 0x00007f6590e38174 in kdemain () from /usr/lib64/libkdeinit4_kwin.so
#27 0x00007f6590ab6a7d in __libc_start_main () from /lib64/libc.so.6
#28 0x0000000000400699 in _start ()

This bug may be a duplicate of or related to bug 204872

Reported using DrKonqi