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 2.6.31.12-0.1-default i686
Distribution: "openSUSE 11.2 (i586)"

What I was doing when the application crashed:
as I closed the update manager the display pilot was lost and 2 seconds later the pilot manager had reloded it. 

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb57b5700 (LWP 2785))]

Thread 2 (Thread 0xa8b8cb70 (LWP 3183)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7654d95 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb76b4750 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb5e03a04 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb76b3623 in ?? () from /usr/lib/libQtCore.so.4
#5  0xb76506e5 in start_thread () from /lib/libpthread.so.0
#6  0xb7650600 in ?? () from /lib/libpthread.so.0

Thread 1 (Thread 0xb57b5700 (LWP 2785)):
[KCrash Handler]
#6  0xb694ca67 in QGraphicsItem::isWidget() const () from /usr/lib/libQtGui.so.4
#7  0xb694f962 in QGraphicsItem::isWindow() const () from /usr/lib/libQtGui.so.4
#8  0xb69872af in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#9  0xb634e8fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0xb635634e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#11 0xb6d8cce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#12 0xb77aa32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#13 0xb6998e68 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#14 0xb67e5786 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb77a950e in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#16 0xb634e8d0 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#17 0xb635629e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#18 0xb6d8cce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#19 0xb77aa32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#20 0xb63a5d5f in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0xb6742bb5 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb67e3bfa in QAbstractScrollArea::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb6998c58 in QGraphicsView::event(QEvent*) () from /usr/lib/libQtGui.so.4
#24 0xb634e8fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0xb635629e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#26 0xb6d8cce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#27 0xb77aa32e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#28 0xb6359a64 in QApplication::setActiveWindow(QWidget*) () from /usr/lib/libQtGui.so.4
#29 0xb63c56cb in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb63f0b68 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb5f294c2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0xb5f2cd98 in ?? () from /usr/lib/libglib-2.0.so.0
#33 0xb5f2cebe in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#34 0xb77d6011 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0xb63f029a in ?? () from /usr/lib/libQtGui.so.4
#36 0xb77a898d in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0xb77a8dd9 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#38 0xb77ab270 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#39 0xb634e774 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#40 0xb42a0b49 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#41 0x0804e147 in _start ()

Reported using DrKonqi