Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1) "release 6"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-desktop i686
Distribution: "openSUSE 11.2 (i586)"

What I was doing when the application crashed:
I was monkeying around with my panel setup and decided to remove the Lancelot widget and my screen flashed.  

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb560a700 (LWP 1983))]

Thread 2 (Thread 0xa89ddb70 (LWP 2209)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb74a9d95 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7509750 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb5c58a04 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb7508623 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb74a56e5 in start_thread () from /lib/libpthread.so.0
#6  0xb74a5600 in ?? () from /lib/libpthread.so.0

Thread 1 (Thread 0xb560a700 (LWP 1983)):
[KCrash Handler]
#6  0xb67a1a67 in QGraphicsItem::isWidget() const () from /usr/lib/libQtGui.so.4
#7  0xb67a4962 in QGraphicsItem::isWindow() const () from /usr/lib/libQtGui.so.4
#8  0xb67dc2af in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#9  0xb61a38fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0xb61ab34e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#11 0xb6be1ce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#12 0xb75ff32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#13 0xb67ede68 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#14 0xb663a786 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb75fe50e in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#16 0xb61a38d0 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#17 0xb61ab29e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0xb6be1ce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#19 0xb75ff32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#20 0xb61fad5f in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0xb6597bb5 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb6638bfa in QAbstractScrollArea::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb67edc58 in QGraphicsView::event(QEvent*) () from /usr/lib/libQtGui.so.4
#24 0xb61a38fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0xb61ab29e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#26 0xb6be1ce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#27 0xb75ff32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#28 0xb61aea64 in QApplication::setActiveWindow(QWidget*) () from /usr/lib/libQtGui.so.4
#29 0xb621a6cb in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb6245b68 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb5d7e4c2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0xb5d81d98 in ?? () from /usr/lib/libglib-2.0.so.0
#33 0xb5d81ebe in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#34 0xb762b011 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0xb624529a in ?? () from /usr/lib/libQtGui.so.4
#36 0xb75fd98d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0xb75fddd9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#38 0xb7600270 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#39 0xb61a3774 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#40 0xb40f5b49 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#41 0x0804e147 in _start ()

Reported using DrKonqi