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 2.6.31-14-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Before the crash (it is not apparent what exactly has crashed)  I was doing nothing for some time.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0x00137d57 in XVisualIDFromVisual () from /usr/lib/libX11.so.6
#7  0x0670d70e in qt_x11_getX11InfoForWindow (xinfo=0x8a7840c, a=...) at kernel/qwidget_x11.cpp:400
#8  0x06714b4e in QWidgetPrivate::create_sys (this=0x8a78318, window=17067852, initializeWindow=true, destroyOldWindow=true) at kernel/qwidget_x11.cpp:545
#9  0x066d5b1c in QWidget::create (this=0x8f754b8, window=17067852, initializeWindow=true, destroyOldWindow=<value optimized out>) at kernel/qwidget.cpp:1253
#10 0x012ffc1e in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#11 0x012fb3f0 in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#12 0x012fb4cb in ?? () from /usr/lib/kde4/plasma_applet_systemtray.so
#13 0x004df263 in QMetaObject::activate (sender=0x8de6710, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#14 0x004dfec2 in QMetaObject::activate (sender=0x8de6710, m=0x5b9908, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#15 0x004e4387 in QSingleShotTimer::timeout (this=0x8de6710) at .moc/release-shared/qtimer.moc:76
#16 0x004e449c in QSingleShotTimer::timerEvent (this=0x8de6710) at kernel/qtimer.cpp:298
#17 0x004d93bf in QObject::event (this=0x8de6710, e=0xbfc52b10) at kernel/qobject.cpp:1075
#18 0x0667ef54 in QApplicationPrivate::notify_helper (this=0x87ae178, receiver=0x8de6710, e=0xbfc52b10) at kernel/qapplication.cpp:4056
#19 0x0668667c in QApplication::notify (this=0x8787210, receiver=0x8de6710, e=0xbfc52b10) at kernel/qapplication.cpp:3603
#20 0x00e5bbfa in KApplication::notify (this=0x8787210, receiver=0x8de6710, event=0xbfc52b10) at ../../kdeui/kernel/kapplication.cpp:302
#21 0x004c96cb in QCoreApplication::notifyInternal (this=0x8787210, receiver=0x8de6710, event=0xbfc52b10) at kernel/qcoreapplication.cpp:610
#22 0x004f67ce in QCoreApplication::sendEvent (this=0x87b0d34) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#23 QTimerInfoList::activateTimers (this=0x87b0d34) at kernel/qeventdispatcher_unix.cpp:572
#24 0x004f40e0 in timerSourceDispatch (source=0x87b0d00) at kernel/qeventdispatcher_glib.cpp:165
#25 0x04634e78 in g_main_dispatch (context=0x87b0290) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:1960
#26 IA__g_main_context_dispatch (context=0x87b0290) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2513
#27 0x04638720 in g_main_context_iterate (context=0x87b0290, block=<value optimized out>, dispatch=1, self=0x87adc80) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2591
#28 0x04638853 in IA__g_main_context_iteration (context=0x87b0290, may_block=1) at /build/buildd/glib2.0-2.22.2/glib/gmain.c:2654
#29 0x004f402c in QEventDispatcherGlib::processEvents (this=0x87adf68, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#30 0x0671fbe5 in QGuiEventDispatcherGlib::processEvents (this=0x87adf68, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#31 0x004c7c79 in QEventLoop::processEvents (this=0xbfc52dd4, flags=) at kernel/qeventloop.cpp:149
#32 0x004c80ca in QEventLoop::exec (this=0xbfc52dd4, flags=...) at kernel/qeventloop.cpp:201
#33 0x004ca53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#34 0x0667edd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#35 0x0776080d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#36 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x87565a8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#37 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#38 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#39 0x0804fbaf in main (argc=2, argv=0xbfc53634, envp=0xbfc53640) at ../../kinit/kinit.cpp:1793

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

Reported using DrKonqi