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 2.6.30.5-43.fc11.x86_64 x86_64

What I was doing when the application crashed:
Left computer idle, it went to screensaver, on return the crash report assistant was open

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fcd6eca5820 (LWP 2029))]

Thread 2 (Thread 0x7fcd59ffb910 (LWP 2033)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00000032bec5adfb in QWaitConditionPrivate::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:159
#3  0x00000032bf6818e4 in QHostInfoAgent::run (this=0xfba880) at kernel/qhostinfo.cpp:260
#4  0x00000032bec59d45 in QThreadPrivate::start (arg=0xfba880) at thread/qthread_unix.cpp:188
#5  0x00000032b380686a in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00000032b2cde3bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fcd6eca5820 (LWP 2029)):
[KCrash Handler]
#5  0x00000032b44331e0 in XVisualIDFromVisual () from /usr/lib64/libX11.so.6
#6  0x00000032c1e10d8f in qt_x11_getX11InfoForWindow (xinfo=0x21dc198, att=<value optimized out>) at kernel/qwidget_x11.cpp:2896
#7  0x00000032c1e10e20 in qt_x11_getX11InfoForWindow (xinfo=0x5b0000006e, a=<value optimized out>) at kernel/qwidget_x11.cpp:400
#8  0x00000032c1e18696 in QWidgetPrivate::create_sys (this=0x21dc000, window=<value optimized out>, initializeWindow=<value optimized out>, destroyOldWindow=<value optimized out>)
    at kernel/qwidget_x11.cpp:545
#9  0x00000032c1ddf39e in QWidget::create (this=0x1bb8350, window=29616077, initializeWindow=192, destroyOldWindow=160) at kernel/qwidget.cpp:1253
#10 0x00007fcd5d499d99 in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib64/kde4/plasma_applet_systemtray.so
#11 0x00007fcd5d495ae8 in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib64/kde4/plasma_applet_systemtray.so
#12 0x00007fcd5d495bc4 in Plasma::Theme::font(Plasma::Theme::FontRole) const () from /usr/lib64/kde4/plasma_applet_systemtray.so
#13 0x00000032bed547dc in QMetaObject::activate (sender=0x2288010, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0xa8e1a0) at kernel/qobject.cpp:3113
#14 0x00000032bed597bf in QSingleShotTimer::timerEvent (this=0x2288010) at kernel/qtimer.cpp:298
#15 0x00000032bed4e7de in QObject::event (this=0x2288010, e=0x1) at kernel/qobject.cpp:1075
#16 0x00000032c1d8f69c in QApplicationPrivate::notify_helper (this=0xa73040, receiver=0x2288010, e=0x7fffddb43010) at kernel/qapplication.cpp:4056
#17 0x00000032c1d968fe in QApplication::notify (this=0xa5aaf0, receiver=0x2288010, e=0x7fffddb43010) at kernel/qapplication.cpp:4021
#18 0x00000032c3811b56 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#19 0x00000032bed3f59c in QCoreApplication::notifyInternal (this=0xa5aaf0, receiver=0x2288010, event=0x7fffddb43010) at kernel/qcoreapplication.cpp:610
#20 0x00000032bed69fc2 in QCoreApplication::sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#21 QTimerInfoList::activateTimers (event=<value optimized out>, receiver=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:572
#22 0x00000032bed679ed in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#23 0x00000032b543790e in g_main_dispatch (context=<value optimized out>) at gmain.c:1824
#24 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2377
#25 0x00000032b543b0e8 in g_main_context_iterate (context=0xa79520, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2455
#26 0x00000032b543b20a in IA__g_main_context_iteration (context=0xa79520, may_block=1) at gmain.c:2518
#27 0x00000032bed67936 in QEventDispatcherGlib::processEvents (this=0xa42810, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#28 0x00000032c1e21f8e in QGuiEventDispatcherGlib::processEvents (this=0x5b0000006e, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x00000032bed3ded2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 36}) at kernel/qeventloop.cpp:149
#30 0x00000032bed3e2a4 in QEventLoop::exec (this=0x7fffddb432b0, flags={i = 0}) at kernel/qeventloop.cpp:201
#31 0x00000032bed40439 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0x00000032c083af4f in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#33 0x00000032b2c1ea2d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffddb435b8) at libc-start.c:220
#34 0x0000000000400779 in _start ()

This bug may be a duplicate of or related to bug 207150

Reported using DrKonqi