Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.29.6-217.2.16.fc11.i686.PAE i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
The system was updated and rebooted. It was under load though.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7ed7780 (LWP 3125))]

Thread 2 (Thread 0xacd4bb70 (LWP 3126)):
#0  0x00c41424 in __kernel_vsyscall ()
#1  0x00558fa5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:122
#2  0x02df5ae7 in QWaitConditionPrivate::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:159
#4  0x03055612 in QHostInfoAgent::run (this=0x95e9120) at kernel/qhostinfo.cpp:260
#5  0x02df4ab2 in QThreadPrivate::start (arg=0x95e9120) at thread/qthread_unix.cpp:188
#6  0x00554935 in start_thread (arg=0xacd4bb70) at pthread_create.c:297
#7  0x0048993e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb7ed7780 (LWP 3125)):
[KCrash Handler]
#6  Tasks::itemTopMargin (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.h:92
#7  AbstractTaskItem::basicPreferredSize (this=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/abstracttaskitem.cpp:99
#8  0x06a8b439 in TaskItemLayout::maximumRows (this=0x96094a8) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:185
#9  0x06a952a4 in TaskGroupItem::optimumCapacity (this=0x9605ae8) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/taskgroupitem.cpp:1224
#10 0x06a86368 in Tasks::adjustGroupingStrategy (this=0x9468230) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.cpp:241
#11 0x06a8662c in Tasks::constraintsEvent (this=0x9468230, constraints={i = 8}) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.cpp:165
#12 0x0644266b in Plasma::Applet::flushPendingConstraintsEvents (this=0x9468230) at /usr/src/debug/kdelibs-4.3.0/plasma/applet.cpp:1163
#13 0x06442da8 in Plasma::Applet::timerEvent (this=0x9468230, event=0xbfefc060) at /usr/src/debug/kdelibs-4.3.0/plasma/applet.cpp:2110
#14 0x02ef4dcf in QObject::event (this=0x9468230, e=0xbfefc060) at kernel/qobject.cpp:1075
#15 0x03c9bc24 in QGraphicsWidget::event (this=0x9468230, event=0xbfefc060) at graphicsview/qgraphicswidget.cpp:1340
#16 0x03646884 in QApplicationPrivate::notify_helper (this=0x90d0c48, receiver=0x9468230, e=0xbfefc060) at kernel/qapplication.cpp:4056
#17 0x0364df0e in QApplication::notify (this=0x90c90a8, receiver=0x9468230, e=0xbfefc060) at kernel/qapplication.cpp:4021
#18 0x05de7a7a in KApplication::notify (this=0x90c90a8, receiver=0x9468230, event=0xbfefc060) at /usr/src/debug/kdelibs-4.3.0/kdeui/kernel/kapplication.cpp:302
#19 0x02ee4f4b in QCoreApplication::notifyInternal (this=0x90c90a8, receiver=0x9468230, event=0xbfefc060) at kernel/qcoreapplication.cpp:610
#20 0x02f1217e 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 0x02f0fa90 in timerSourceDispatch (source=0x90d7940) at kernel/qeventdispatcher_glib.cpp:165
#23 0x00746cf8 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 0x0074a370 in g_main_context_iterate (context=0x90d6e90, block=<value optimized out>, dispatch=1, self=0x90d06b8) at gmain.c:2455
#26 0x0074a4a3 in IA__g_main_context_iteration (context=0x90d6e90, may_block=1) at gmain.c:2518
#27 0x02f0f9dc in QEventDispatcherGlib::processEvents (this=0x90b3e60, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#28 0x036e59e5 in QGuiEventDispatcherGlib::processEvents (this=0x90b3e60, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#29 0x02ee3539 in QEventLoop::processEvents (this=0xbfefc324, flags={i = 36}) at kernel/qeventloop.cpp:149
#30 0x02ee398a in QEventLoop::exec (this=0xbfefc324, flags={i = 0}) at kernel/qeventloop.cpp:201
#31 0x02ee5dff in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#32 0x03646707 in QApplication::exec () at kernel/qapplication.cpp:3525
#33 0x05b023bd in kdemain (argc=1, argv=0xbfefc504) at /usr/src/debug/kdebase-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#34 0x080486fb in main (argc=1, argv=0xbfefc504) at /usr/src/debug/kdebase-workspace-4.3.0/i586-redhat-linux-gnu/plasma/shells/desktop/plasma-desktop_dummy.cpp:3

Reported using DrKonqi