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 2.6.26 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  Tasks::itemTopMargin (this=0x20d0150) at ../../../../plasma/applets/tasks/tasks.h:92
#6  AbstractTaskItem::basicPreferredSize (this=0x20d0150) at ../../../../plasma/applets/tasks/abstracttaskitem.cpp:100
#7  0x00007f2c7ba06e2c in TaskItemLayout::layoutItems (this=0x19ff2a0) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:273
#8  0x00007f2c7ba07904 in TaskItemLayout::insert (this=0x19ff2a0, index=2, item=0x2029930) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:125
#9  0x00007f2c7ba07ae8 in TaskItemLayout::addTaskItem (this=0x19ff2a0, item=0x2029930) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:82
#10 0x00007f2c7ba13508 in TaskGroupItem::itemAdded (this=0x1a19550, groupableItem=0x2053850) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:477
#11 0x00007f2c7ba13af2 in TaskGroupItem::qt_metacall (this=0x1a19550, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff9ce38100) at ./taskgroupitem.moc:113
#12 0x00007f2c9493e682 in QMetaObject::activate (sender=0x1a1c1c0, from_signal_index=<value optimized out>, to_signal_index=21, argv=0x0) at kernel/qobject.cpp:3112
#13 0x00007f2c7c92d47f in TaskManager::TaskGroup::itemAdded (this=0x746c75616665645f, _t1=0x2053850) at ./taskgroup.moc:139
#14 0x00007f2c7c92dfab in TaskManager::TaskGroup::add (this=0x1a1c1c0, item=0x2053850) at ../../../libs/taskmanager/taskgroup.cpp:138
#15 0x00007f2c7c9146fd in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x1a67d70, group=0x1a43f60) at ../../../libs/taskmanager/abstractgroupingstrategy.cpp:168
#16 0x00007f2c7c91b998 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x1a67d70) at ../../../libs/taskmanager/strategies/programgroupingstrategy.cpp:204
#17 0x00007f2c7c91c825 in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x1a67d70, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>) at ./programgroupingstrategy.moc:68
#18 0x00007f2c9493e682 in QMetaObject::activate (sender=0x1a43f60, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x0) at kernel/qobject.cpp:3112
#19 0x00007f2c7c92d442 in TaskManager::TaskGroup::itemRemoved (this=0x746c75616665645f, _t1=0x204c070) at ./taskgroup.moc:146
#20 0x00007f2c7c92dd51 in TaskManager::TaskGroup::remove (this=0x1a43f60, item=0x204c070) at ../../../libs/taskmanager/taskgroup.cpp:182
#21 0x00007f2c7c917544 in TaskManager::GroupManagerPrivate::removeTask (this=0x1a147e0, task=...) at ../../../libs/taskmanager/groupmanager.cpp:311
#22 0x00007f2c7c918d7d in TaskManager::GroupManager::qt_metacall (this=0x1a043c0, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fff9ce38560) at ./groupmanager.moc:105
#23 0x00007f2c9493e682 in QMetaObject::activate (sender=0x1a149b0, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x0) at kernel/qobject.cpp:3112
#24 0x00007f2c7c930825 in TaskManager::TaskManager::taskRemoved (this=0x746c75616665645f, _t1=<value optimized out>) at ./taskmanager.moc:162
#25 0x00007f2c7c931e27 in TaskManager::TaskManager::windowRemoved (this=0x1a149b0, w=60817433) at ../../../libs/taskmanager/taskmanager.cpp:279
#26 0x00007f2c7c933aef in TaskManager::TaskManager::qt_metacall (this=0x1a149b0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff9ce38780) at ./taskmanager.moc:110
#27 0x00007f2c9493e682 in QMetaObject::activate (sender=0x17925b0, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x0) at kernel/qobject.cpp:3112
#28 0x00007f2c93638532 in KWindowSystem::windowRemoved (this=0x746c75616665645f, _t1=60817433) at ./kwindowsystem.moc:127
#29 0x00007f2c9363a9eb in KWindowSystemPrivate::removeClient (this=0x1811570, w=60817433) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#30 0x00007f2c93648e27 in NETRootInfo::update (this=0x1811598, dirty_props=<value optimized out>) at ../../kdeui/windowmanagement/netwm.cpp:2183
#31 0x00007f2c93649b41 in NETRootInfo::event (this=0x1811598, event=<value optimized out>, properties=0x7fff9ce38a80, properties_size=5) at ../../kdeui/windowmanagement/netwm.cpp:2058
#32 0x00007f2c9363acab in KWindowSystemPrivate::x11Event (this=0x1811570, ev=0x7fff9ce3a480) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#33 0x00007f2c9350d8d3 in KAppX11HackWidget::publicx11Event (this=<value optimized out>, _event=0x7fff9ce3a480) at ../../kdeui/kernel/kapplication.cpp:900
#34 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff9ce3a480) at ../../kdeui/kernel/kapplication.cpp:950
#35 0x00007f2c8a1566e4 in PlasmaApp::x11EventFilter (this=0x167cbf0, event=0x7fff9ce3a480) at ../../../../plasma/shells/desktop/plasmaapp.cpp:490
#36 0x00007f2c9290fb6f in qt_x11EventFilter (ev=0x7fff9ce3a480) at kernel/qapplication_x11.cpp:375
#37 0x00007f2c92922c8e in QApplication::x11ProcessEvent (this=0x167cbf0, event=0x7fff9ce3a480) at kernel/qapplication_x11.cpp:3271
#38 0x00007f2c9294be9c in x11EventSourceDispatch (s=0x16893a0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#39 0x00007f2c917d186a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0x00007f2c917d4eb8 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0x00007f2c917d506c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0x00007f2c94951bff in QEventDispatcherGlib::processEvents (this=0x1685310, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#43 0x00007f2c9294b64f in QGuiEventDispatcherGlib::processEvents (this=0x746c75616665645f, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#44 0x00007f2c94927de2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#45 0x00007f2c949281b4 in QEventLoop::exec (this=0x7fff9ce3a7b0, flags=...) at kernel/qeventloop.cpp:201
#46 0x00007f2c9492a424 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#47 0x00007f2c8a14326b in kdemain (argc=1, argv=0x1635830) at ../../../../plasma/shells/desktop/main.cpp:50
#48 0x0000000000407264 in launch (argc=1, _name=0x163d808 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x163d828 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a0ff "0") at ../../kinit/kinit.cpp:677
#49 0x0000000000407a28 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#50 0x0000000000407fae in handle_requests (waitForPid=0) at ../../kinit/kinit.cpp:1362
#51 0x000000000040863b in main (argc=2, argv=0x7fff9ce3b628, envp=0x7fff9ce3b640) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi