Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1) "release 6"
Qt Version: 4.5.3
Operating System: Linux 2.6.27.37-0.1-pae i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
I  opened the mediainfo-gui (ver. 0.7.24-0.pm.1.1-i586)  for 6 .avi files at the same time. In one moment the task bar "shrinked" the opened windows in it and created a second row of aplications and then it crashed.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb578c700 (LWP 3734))]

Thread 2 (Thread 0xa89cfb90 (LWP 3735)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7616c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb76765a2 in QWaitCondition::wait (this=0x82ed450, mutex=0x82ed44c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  0xb6ee8ef2 in QHostInfoAgent::run (this=0x82ed440) at kernel/qhostinfo.cpp:260
#4  0xb7675592 in QThreadPrivate::start (arg=0x82ed440) at thread/qthread_unix.cpp:188
#5  0xb76131b5 in start_thread () from /lib/libpthread.so.0
#6  0xb5e563ae in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb578c700 (LWP 3734)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0x8dc1d78) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/tasks.h:92
#7  0xa8f2c6f1 in TaskItemLayout::preferredColumns (this=0x81d40d8) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:206
#8  0xa8f2d11d in TaskItemLayout::gridLayoutSize (this=0x81d40d8) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:222
#9  0xa8f2d1db in TaskItemLayout::layoutItems (this=0x81d40d8) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:245
#10 0xa8f2dbc4 in TaskItemLayout::remove (this=0x81d40d8, item=0x8dfa4d0) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:136
#11 0xa8f2dc7c in TaskItemLayout::removeTaskItem (this=0x81d40d8, item=0x8dfa4d0) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:93
#12 0xa8f3ae01 in TaskGroupItem::itemPositionChanged (this=0x8306308, item=0x8bc3d20) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/applets/tasks/taskgroupitem.cpp:882
#13 0xa8f3b08e in TaskGroupItem::qt_metacall (this=0x8306308, _c=QMetaObject::InvokeMetaMethod, _id=17, _a=0xbf8b2e4c)
    at /usr/src/debug/kdebase-workspace-4.3.1/build/plasma/applets/tasks/taskgroupitem.moc:116
#14 0xb777eee8 in QMetaObject::activate (sender=0x8305df0, from_signal_index=24, to_signal_index=24, argv=0xbf8b2e4c) at kernel/qobject.cpp:3113
#15 0xb777fb72 in QMetaObject::activate (sender=0x8305df0, m=0xa8f84b74, local_signal_index=3, argv=0xbf8b2e4c) at kernel/qobject.cpp:3187
#16 0xa8f6fb73 in TaskManager::TaskGroup::itemPositionChanged (this=0x8305df0, _t1=0x8bc3d20) at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/taskgroup.moc:165
#17 0xa8f72048 in TaskManager::TaskGroup::moveItem (this=0x8305df0, oldIndex=4, newIndex=2) at /usr/src/debug/kdebase-workspace-4.3.1/libs/taskmanager/taskgroup.cpp:568
#18 0xa8f55c66 in TaskManager::AbstractSortingStrategy::check (this=0x8313400, itemToCheck=0x0) at /usr/src/debug/kdebase-workspace-4.3.1/libs/taskmanager/abstractsortingstrategy.cpp:149
#19 0xa8f5604b in TaskManager::AbstractSortingStrategy::qt_metacall (this=0x8313400, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf8b2fc8)
    at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/abstractsortingstrategy.moc:74
#20 0xa8f5ac52 in TaskManager::AlphaSortingStrategy::qt_metacall (this=0x8313400, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbf8b2fc8)
    at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/alphasortingstrategy.moc:58
#21 0xb777eee8 in QMetaObject::activate (sender=0x8bc3d20, from_signal_index=21, to_signal_index=21, argv=0x0) at kernel/qobject.cpp:3113
#22 0xb777fb72 in QMetaObject::activate (sender=0x8bc3d20, m=0xa8f84c5c, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#23 0xa8f72297 in TaskManager::TaskItem::gotTaskPointer (this=0x8bc3d20) at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/taskitem.moc:116
#24 0xa8f72b85 in TaskManager::TaskItem::setTaskPointer (this=0x8bc3d20, task={d = 0xbf8b30c8}) at /usr/src/debug/kdebase-workspace-4.3.1/libs/taskmanager/taskitem.cpp:99
#25 0xa8f57055 in TaskManager::GroupManagerPrivate::addTask (this=0x81d7a28, task={d = 0xbf8b3120}) at /usr/src/debug/kdebase-workspace-4.3.1/libs/taskmanager/groupmanager.cpp:268
#26 0xa8f59382 in TaskManager::GroupManager::qt_metacall (this=0x82e2200, _c=QMetaObject::InvokeMetaMethod, _id=10, _a=0xbf8b31fc)
    at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/groupmanager.moc:103
#27 0xb777eee8 in QMetaObject::activate (sender=0x82e0298, from_signal_index=4, to_signal_index=4, argv=0xbf8b31fc) at kernel/qobject.cpp:3113
#28 0xb777fb72 in QMetaObject::activate (sender=0x82e0298, m=0xa8f84d3c, local_signal_index=0, argv=0xbf8b31fc) at kernel/qobject.cpp:3187
#29 0xa8f73723 in TaskManager::TaskManager::taskAdded (this=0x82e0298, _t1={d = 0xbf8b3284}) at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/taskmanager.moc:155
#30 0xa8f759b6 in TaskManager::TaskManager::windowAdded (this=0x82e0298, w=90177594) at /usr/src/debug/kdebase-workspace-4.3.1/libs/taskmanager/taskmanager.cpp:261
#31 0xa8f76cc4 in TaskManager::TaskManager::qt_metacall (this=0x82e0298, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbf8b33bc)
    at /usr/src/debug/kdebase-workspace-4.3.1/build/libs/taskmanager/taskmanager.moc:109
#32 0xb777eee8 in QMetaObject::activate (sender=0x81c6678, from_signal_index=5, to_signal_index=5, argv=0xbf8b33bc) at kernel/qobject.cpp:3113
#33 0xb777fb72 in QMetaObject::activate (sender=0x81c6678, m=0xb6e2124c, local_signal_index=1, argv=0xbf8b33bc) at kernel/qobject.cpp:3187
#34 0xb6d6c1f3 in KWindowSystem::windowAdded(unsigned long) () from /usr/lib/libkdeui.so.5
#35 0xb6d6e849 in ?? () from /usr/lib/libkdeui.so.5
#36 0xb6d7d72d in NETRootInfo::update(unsigned long const*) () from /usr/lib/libkdeui.so.5
#37 0xb6d7e3ef in NETRootInfo::event(_XEvent*, unsigned long*, int) () from /usr/lib/libkdeui.so.5
#38 0xb6d6ec5d in ?? () from /usr/lib/libkdeui.so.5
#39 0xb6c20499 in KApplication::x11EventFilter(_XEvent*) () from /usr/lib/libkdeui.so.5
#40 0xb41bf517 in PlasmaApp::x11EventFilter (this=0x809ffa8, event=0xbf8b4c3c) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/shells/desktop/plasmaapp.cpp:490
#41 0xb619081e in qt_x11EventFilter (ev=0xbf8b4c3c) at kernel/qapplication_x11.cpp:377
#42 0xb61a30ae in QApplication::x11ProcessEvent (this=0x809ffa8, event=0xbf8b4c3c) at kernel/qapplication_x11.cpp:3271
#43 0xb61ce5ca in x11EventSourceDispatch (s=0x80a8240, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#44 0xb5cd39c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#45 0xb5cd7083 in ?? () from /usr/lib/libglib-2.0.so.0
#46 0xb5cd7241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#47 0xb7795071 in QEventDispatcherGlib::processEvents (this=0x80a5648, flags={i = -1081389576}) at kernel/qeventdispatcher_glib.cpp:407
#48 0xb61cdcc5 in QGuiEventDispatcherGlib::processEvents (this=0x80a5648, flags={i = -1081389528}) at kernel/qguieventdispatcher_glib.cpp:202
#49 0xb7767f1a in QEventLoop::processEvents (this=0xbf8b4ea0, flags={i = -1081389464}) at kernel/qeventloop.cpp:149
#50 0xb7768362 in QEventLoop::exec (this=0xbf8b4ea0, flags={i = -1081389400}) at kernel/qeventloop.cpp:201
#51 0xb776a809 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0xb612d5e7 in QApplication::exec () at kernel/qapplication.cpp:3525
#53 0xb41a9ae0 in kdemain (argc=1, argv=0x8089360) at /usr/src/debug/kdebase-workspace-4.3.1/plasma/shells/desktop/main.cpp:50
#54 0x0804e505 in _start ()

This bug may be a duplicate of or related to bug 208734

Reported using DrKonqi