Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.29.3-155.fc11.x86_64 x86_64
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
After upgrade clock and systray are beside multidesktop icons, not at the right side. And plasma crashed and restarted automaticaly. 

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fee1d498820 (LWP 27114))]

Thread 2 (Thread 0x7fedffaae910 (LWP 27147)):
#0  0x0000003a90c0b2f9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x0000003a9c85adcb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x0000003a9b882bdc in ?? () from /usr/lib64/libQtNetwork.so.4
#3  0x0000003a9c859d21 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x0000003a90c0686a in start_thread () from /lib64/libpthread.so.0
#5  0x0000003a900de25d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fee1d498820 (LWP 27114)):
[KCrash Handler]
#5  0x0000003a9d935f14 in QGraphicsItem::isWidget() const () from /usr/lib64/libQtGui.so.4
#6  0x0000003a9d938659 in QGraphicsItem::isWindow() const () from /usr/lib64/libQtGui.so.4
#7  0x0000003a9d96bcd9 in QGraphicsScene::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#8  0x0000003a9d38ea8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#9  0x0000003a9d395e3e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#10 0x00007fee1e542156 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#11 0x0000003a9c93f61c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#12 0x0000003a9d97db06 in QGraphicsView::viewportEvent(QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x0000003a9c93e967 in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#14 0x0000003a9d38ea5c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#15 0x0000003a9d395e3e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#16 0x00007fee1e542156 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#17 0x0000003a9c93f61c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#18 0x0000003a9d3dd6ab in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#19 0x0000003a9d763916 in QFrame::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#20 0x0000003a9d7f3209 in QAbstractScrollArea::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#21 0x0000003a9d38ea8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#22 0x0000003a9d395e3e in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007fee1e542156 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#24 0x0000003a9c93f61c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#25 0x0000003a9d3990eb in QApplication::setActiveWindow(QWidget*) () from /usr/lib64/libQtGui.so.4
#26 0x0000003a9d3fa34e in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#27 0x0000003a9d421e7c in ?? () from /usr/lib64/libQtGui.so.4
#28 0x0000003a9243818e in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#29 0x0000003a9243b8e8 in ?? () from /lib64/libglib-2.0.so.0
#30 0x0000003a9243ba5c in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#31 0x0000003a9c9680a6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#32 0x0000003a9d42162e in ?? () from /usr/lib64/libQtGui.so.4
#33 0x0000003a9c93df52 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#34 0x0000003a9c93e324 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#35 0x0000003a9c9403c9 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#36 0x00007fee1f9b1a5f in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#37 0x0000003a9001ea2d in __libc_start_main () from /lib64/libc.so.6
#38 0x0000000000400779 in _start ()