Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-0.slh.3-sidux-686 i686
Distribution: Debian GNU/Linux unstable (sid)

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb604c700 (LWP 2980))]

Thread 2 (Thread 0xa9408b90 (LWP 2983)):
#0  0xb8061424 in __kernel_vsyscall ()
#1  0xb677ef65 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/i686/cmov/libpthread.so.0
#2  0xb695885d in pthread_cond_wait () from /lib/i686/cmov/libc.so.6
#3  0xb7e64562 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#4  0xb668567a in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb7e63582 in ?? () from /usr/lib/libQtCore.so.4
#6  0xb677b4b5 in start_thread () from /lib/i686/cmov/libpthread.so.0
#7  0xb6949a5e in clone () from /lib/i686/cmov/libc.so.6

Thread 1 (Thread 0xb604c700 (LWP 2980)):
[KCrash Handler]
#6  0xb71f526a in QGraphicsItem::isWidget() const () from /usr/lib/libQtGui.so.4
#7  0xb722ea27 in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#8  0xb6bfc814 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#9  0xb6c0497e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0xb76454ad in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#11 0xb7f549cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#12 0xb7240d15 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#13 0xb709a545 in ?? () from /usr/lib/libQtGui.so.4
#14 0xb7f53bfa in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#15 0xb6bfc7ec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#16 0xb6c04a52 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#17 0xb76454ad in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#18 0xb7f549cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#19 0xb6c52255 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#20 0xb6ff8f53 in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0xb7098a6d in QAbstractScrollArea::event(QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb723d996 in QGraphicsView::event(QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb6bfc814 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0xb6c04a52 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0xb76454ad in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0xb7f549cb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0xb6c035c9 in QApplication::setActiveWindow(QWidget*) () from /usr/lib/libQtGui.so.4
#28 0xb6c71b52 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#29 0xb6c9c892 in ?? () from /usr/lib/libQtGui.so.4
#30 0xb67c84b8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#31 0xb67cba13 in ?? () from /usr/lib/libglib-2.0.so.0
#32 0xb67cbb98 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#33 0xb7f7f858 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0xb6c9bfd5 in ?? () from /usr/lib/libQtGui.so.4
#35 0xb7f5301a in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#36 0xb7f53462 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0xb7f558b9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#38 0xb6bfc697 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#39 0xb4c23f40 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#40 0x0804e291 in _start ()

Reported using DrKonqi