Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.30.9-90.fc11.i686.PAE i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
I was opening FireFox ( multiple tabs )   , openoffice writer   and pidgin ..... and then suddenly  the plasma-desktop crashed and then restarted ....and the "Crash Report Assistant" opened .

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7772780 (LWP 2158))]

Thread 2 (Thread 0xac608b70 (LWP 2159)):
#0  0x0097f424 in __kernel_vsyscall ()
#1  0x00d4dfa5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0x077c1337 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0x07a214d2 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0x077c02f2 in ?? () from /usr/lib/libQtCore.so.4
#5  0x00d49935 in start_thread () from /lib/libpthread.so.0
#6  0x00c7e94e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb7772780 (LWP 2158)):
[KCrash Handler]
#6  0x001298d7 in XVisualIDFromVisual () from /usr/lib/libX11.so.6
#7  0x0454378e in ?? () from /usr/lib/libQtGui.so.4
#8  0x04549e6e in QWidgetPrivate::create_sys(unsigned long, bool, bool) () from /usr/lib/libQtGui.so.4
#9  0x0450d6b0 in QWidget::create(unsigned long, bool, bool) () from /usr/lib/libQtGui.so.4
#10 0x03d8d02e in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib/kde4/plasma_applet_systemtray.so
#11 0x03d88800 in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib/kde4/plasma_applet_systemtray.so
#12 0x03d888db in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib/kde4/plasma_applet_systemtray.so
#13 0x078c6853 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x078c74b2 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#15 0x078cb967 in ?? () from /usr/lib/libQtCore.so.4
#16 0x078cba7c in ?? () from /usr/lib/libQtCore.so.4
#17 0x078c096f in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#18 0x044b6974 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#19 0x044be0e9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#20 0x06a44c3a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0x078b0b0b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#22 0x078ddd7e in ?? () from /usr/lib/libQtCore.so.4
#23 0x078db6a0 in ?? () from /usr/lib/libQtCore.so.4
#24 0x00267308 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#25 0x0026a9e0 in ?? () from /lib/libglib-2.0.so.0
#26 0x0026ab13 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#27 0x078db5ec in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#28 0x04555cb5 in ?? () from /usr/lib/libQtGui.so.4
#29 0x078af0d9 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#30 0x078af52a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#31 0x078b19af in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#32 0x044b67f7 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#33 0x071f041d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#34 0x080486fb in _start ()

This bug may be a duplicate of or related to bug 213125

Reported using DrKonqi