Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.9-174.fc12.x86_64 x86_64
Distribution: "Fedora release 12 (Constantine)"

What I was doing when the application crashed:
I pressed "ESC" in krunner and plasma crashed. I think it is taskbar related.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f9f71fb5840 (LWP 2317))]

Thread 2 (Thread 0x7f9f59f47710 (LWP 2320)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000003bbd05addb in wait (time=18446744073709551615, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (time=18446744073709551615, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:159
#3  0x0000003bbde81af4 in QHostInfoAgent::run (this=0x21c8e50) at kernel/qhostinfo.cpp:260
#4  0x0000003bbd059d25 in QThreadPrivate::start (arg=0x21c8e50) at thread/qthread_unix.cpp:188
#5  0x0000003bb2c06a3a in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x0000003bb20de67d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9f71fb5840 (LWP 2317)):
[KCrash Handler]
#5  0x00007f9f5e1e1726 in TaskItemLayout::layoutItems (this=0x238df30) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/applets/tasks/taskitemlayout.cpp:325
#6  0x00007f9f5e1e1cdb in TaskItemLayout::insert (this=0x238df30, index=<value optimized out>, item=0x2646910) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/applets/tasks/taskitemlayout.cpp:129
#7  0x00007f9f5e1e1ed0 in TaskItemLayout::addTaskItem (this=0x238df30, item=0x3505700) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/applets/tasks/taskitemlayout.cpp:82
#8  0x00007f9f5e1ee068 in TaskGroupItem::itemAdded (this=0x2341020, groupableItem=0x38a8670) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/applets/tasks/taskgroupitem.cpp:477
#9  0x00007f9f5e1ee6e4 in TaskGroupItem::qt_metacall (this=0x2341020, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff939c63c0)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/plasma/applets/tasks/taskgroupitem.moc:113
#10 0x0000003bbd15408c in QMetaObject::activate (sender=0x2353980, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff939c63c0) at kernel/qobject.cpp:3112
#11 0x00007f9f5fb55c2f in TaskManager::TaskGroup::itemAdded (this=<value optimized out>, _t1=0x38a8670)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/taskgroup.moc:145
#12 0x00007f9f5fb5650f in TaskManager::TaskGroup::add (this=0x2353980, item=0x38a8670) at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/taskgroup.cpp:138
#13 0x00007f9f5fb3d7f5 in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x35a3060, group=0x385f4c0)
    at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/abstractgroupingstrategy.cpp:168
#14 0x00007f9f5fb448cf in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x35a3060) at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/strategies/programgroupingstrategy.cpp:210
#15 0x00007f9f5fb45877 in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x35a3060, _c=InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff939c6620)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:70
#16 0x0000003bbd15408c in QMetaObject::activate (sender=0x385f4c0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff939c6620) at kernel/qobject.cpp:3112
#17 0x00007f9f5fb55bf2 in TaskManager::TaskGroup::itemRemoved (this=<value optimized out>, _t1=0x37f71e0)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/taskgroup.moc:152
#18 0x00007f9f5fb562c1 in TaskManager::TaskGroup::remove (this=0x385f4c0, item=0x37f71e0) at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/taskgroup.cpp:189
#19 0x00007f9f5fb4043b in TaskManager::GroupManagerPrivate::removeTask (this=0x2336d30, task=...) at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/groupmanager.cpp:311
#20 0x00007f9f5fb420ca in TaskManager::GroupManager::qt_metacall (this=0x233ad50, _c=<value optimized out>, _id=11, _a=0x7fff939c6860)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/groupmanager.moc:105
#21 0x0000003bbd15408c in QMetaObject::activate (sender=0x233adb0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff939c6860) at kernel/qobject.cpp:3112
#22 0x00007f9f5fb59065 in TaskManager::TaskManager::taskRemoved (this=<value optimized out>, _t1=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:162
#23 0x00007f9f5fb5ac2d in TaskManager::TaskManager::windowRemoved (this=0x233adb0, w=54526344) at /usr/src/debug/kdebase-workspace-4.3.4/libs/taskmanager/taskmanager.cpp:278
#24 0x00007f9f5fb5c3c7 in TaskManager::TaskManager::qt_metacall (this=0x233adb0, _c=InvokeMetaMethod, _id=7, _a=0x7fff939c6aa0)
    at /usr/src/debug/kdebase-workspace-4.3.4/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:110
#25 0x0000003bbd15408c in QMetaObject::activate (sender=0x1e97370, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x7fff939c6aa0) at kernel/qobject.cpp:3112
#26 0x0000003bc2b3c882 in KWindowSystem::windowRemoved (this=<value optimized out>, _t1=54526344) at /usr/src/debug/kdelibs-4.3.4/x86_64-redhat-linux-gnu/kdeui/kwindowsystem.moc:127
#27 0x0000003bc2b3f68a in KWindowSystemPrivate::removeClient (this=0x1e5cb40, w=54526344) at /usr/src/debug/kdelibs-4.3.4/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#28 0x0000003bc2b4d1cd in NETRootInfo::update (this=0x1e5cb68, dirty_props=<value optimized out>) at /usr/src/debug/kdelibs-4.3.4/kdeui/windowmanagement/netwm.cpp:2183
#29 0x0000003bc2b4df03 in NETRootInfo::event (this=0x1e5cb68, event=0x7fff939c8760, properties=0x7fff939c6db0, properties_size=5) at /usr/src/debug/kdelibs-4.3.4/kdeui/windowmanagement/netwm.cpp:2058
#30 0x0000003bc2b3f93c in KWindowSystemPrivate::x11Event (this=0x1e5cb40, ev=0x7fff939c8760) at /usr/src/debug/kdelibs-4.3.4/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#31 0x0000003bc2a10f16 in publicx11Event (e=0x7fff939c8760, this=<value optimized out>) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:900
#32 KApplication::x11EventFilter (e=0x7fff939c8760, this=<value optimized out>) at /usr/src/debug/kdelibs-4.3.4/kdeui/kernel/kapplication.cpp:950
#33 0x0000003bc0c4e277 in PlasmaApp::x11EventFilter (this=0x1cfc480, event=0x7fff939c8760) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/shells/desktop/plasmaapp.cpp:490
#34 0x0000003bbf3e9621 in qt_x11EventFilter (ev=0x7fff939c8760) at kernel/qapplication_x11.cpp:377
#35 0x0000003bbf3f9a21 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff939c8760) at kernel/qapplication_x11.cpp:3270
#36 0x0000003bbf3fbd1b in QETWidget::translateMouseEvent (this=0x220d960, event=0x7fff939ca090) at kernel/qapplication_x11.cpp:4140
#37 0x0000003bbf3faaa8 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff939ca090) at kernel/qapplication_x11.cpp:3549
#38 0x0000003bbf42284c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x0000003bb483922e in g_main_dispatch (context=<value optimized out>) at gmain.c:1960
#40 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#41 0x0000003bb483cc18 in g_main_context_iterate (context=0x1d20580, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>) at gmain.c:2591
#42 0x0000003bb483cd3a in IA__g_main_context_iteration (context=0x1d20580, may_block=1) at gmain.c:2654
#43 0x0000003bbd1671e6 in QEventDispatcherGlib::processEvents (this=0x1ce42b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#44 0x0000003bbf421ffe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#45 0x0000003bbd13d772 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#46 0x0000003bbd13db44 in QEventLoop::exec (this=0x7fff939ca3c0, flags=...) at kernel/qeventloop.cpp:201
#47 0x0000003bbd13fcd9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#48 0x0000003bc0c3af4f in kdemain (argc=<value optimized out>, argv=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.3.4/plasma/shells/desktop/main.cpp:50
#49 0x0000003bb201eb1d 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=<value optimized out>) at libc-start.c:226
#50 0x0000000000400779 in _start ()

This bug may be a duplicate of or related to bug 222220

Reported using DrKonqi