Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.30-2-amd64 x86_64
Distribution: Debian GNU/Linux testing-proposed-updates (sid)

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fdb99ed4750 (LWP 22416))]

Thread 2 (Thread 0x7fdb7af06910 (LWP 22428)):
#0  0x00007fdb9674ff89 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#1  0x00007fdb99a16499 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007fdb95e0b3b4 in ?? () from /usr/lib/libQtNetwork.so.4
#3  0x00007fdb99a154a5 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007fdb9674b73a in start_thread () from /lib/libpthread.so.0
#5  0x00007fdb973142fd in clone () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fdb99ed4750 (LWP 22416)):
[KCrash Handler]
#5  0x00007fdb98013d94 in QGraphicsItem::isWidget() const () from /usr/lib/libQtGui.so.4
#6  0x00007fdb980164f9 in QGraphicsItem::isWindow() const () from /usr/lib/libQtGui.so.4
#7  0x00007fdb9804c969 in QGraphicsScene::event(QEvent*) () from /usr/lib/libQtGui.so.4
#8  0x00007fdb97a8401d in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#9  0x00007fdb97a8c07a in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0x00007fdb986dd0db in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#11 0x00007fdb99afac9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#12 0x00007fdb9805ceb6 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib/libQtGui.so.4
#13 0x00007fdb99af9fb8 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#14 0x00007fdb97a83fec in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#15 0x00007fdb97a8c07a in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#16 0x00007fdb986dd0db in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#17 0x00007fdb99afac9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#18 0x00007fdb97ad44ea in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x00007fdb97e3c92b in QFrame::event(QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x00007fdb97ecbc09 in QAbstractScrollArea::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0x00007fdb97a8401d in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0x00007fdb97a8c07a in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0x00007fdb986dd0db in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#24 0x00007fdb99afac9c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0x00007fdb97a8abf5 in QApplication::setActiveWindow(QWidget*) () from /usr/lib/libQtGui.so.4
#26 0x00007fdb97af3721 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#27 0x00007fdb97b1b76c in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007fdb9699c12a in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#29 0x00007fdb9699f988 in ?? () from /lib/libglib-2.0.so.0
#30 0x00007fdb9699fb3c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#31 0x00007fdb99b2339c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0x00007fdb97b1af1f in ?? () from /usr/lib/libQtGui.so.4
#33 0x00007fdb99af9562 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x00007fdb99af9934 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0x00007fdb99afbba4 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#36 0x00007fdb8ec0426b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#37 0x0000000000407264 in _start ()

Reported using DrKonqi