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 2.6.31-17-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Switching workspace multiple times in a row using keyboard shortcuts.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb779b700 (LWP 2360))]

Thread 2 (Thread 0xac687b70 (LWP 2361)):
#0  0x0058e422 in __kernel_vsyscall ()
#1  0x00138e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x0066887d in __pthread_cond_wait (cond=0x9a9c660, mutex=0x9a9c648) at forward.c:139
#3  0x0073de67 in QWaitConditionPrivate::wait (this=0x99cfdd0, mutex=0x99cfdcc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x99cfdd0, mutex=0x99cfdcc, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x044db922 in QHostInfoAgent::run (this=0x99cfdc0) at kernel/qhostinfo.cpp:260
#6  0x0073ce32 in QThreadPrivate::start (arg=0x99cfdc0) at thread/qthread_unix.cpp:188
#7  0x0013480e in start_thread (arg=0xac687b70) at pthread_create.c:300
#8  0x0065b8de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb779b700 (LWP 2360)):
[KCrash Handler]
#6  0x017bc622 in TaskItemLayout::layoutItems (this=0x976e2e8) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:320
#7  0x017bce2a in TaskItemLayout::insert (this=0x976e2e8, index=5, item=0xaa68648) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:125
#8  0x017bd00f in TaskItemLayout::addTaskItem (this=0x976e2e8, item=0xaa68648) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:82
#9  0x017c9fa2 in TaskGroupItem::itemAdded (this=0x9861ee8, groupableItem=0xa9d91a8) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:477
#10 0x017ca627 in TaskGroupItem::qt_metacall (this=0x9861ee8, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbffa9308) at ./taskgroupitem.moc:113
#11 0x00843263 in QMetaObject::activate (sender=0x976df38, from_signal_index=21, to_signal_index=21, argv=0xbffa9308) at kernel/qobject.cpp:3113
#12 0x00843ec2 in QMetaObject::activate (sender=0x976df38, m=0x180abf4, local_signal_index=0, argv=0xbffa9308) at kernel/qobject.cpp:3187
#13 0x017fc433 in TaskManager::TaskGroup::itemAdded (this=0x976df38, _t1=0xa9d91a8) at ./taskgroup.moc:145
#14 0x017fce8b in TaskManager::TaskGroup::add (this=0x976df38, item=0xa9d91a8) at ../../../libs/taskmanager/taskgroup.cpp:138
#15 0x017e4052 in TaskManager::GroupManagerPrivate::addTask (this=0x9936870, task=) at ../../../libs/taskmanager/groupmanager.cpp:290
#16 0x017e4a45 in TaskManager::GroupManagerPrivate::actuallyReloadTasks (this=0x9936870) at ../../../libs/taskmanager/groupmanager.cpp:155
#17 0x017e63be in TaskManager::GroupManager::qt_metacall (this=0x97f1538, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbffa951c) at ./groupmanager.moc:108
#18 0x00843263 in QMetaObject::activate (sender=0x99368b0, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#19 0x00843ec2 in QMetaObject::activate (sender=0x99368b0, m=0x91e904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#20 0x0087d667 in QTimer::timeout (this=0x99368b0) at .moc/release-shared/moc_qtimer.cpp:128
#21 0x008489ae in QTimer::timerEvent (this=0x99368b0, e=0xbffa99b0) at kernel/qtimer.cpp:261
#22 0x0083d3bf in QObject::event (this=0x99368b0, e=0xbffa99b0) at kernel/qobject.cpp:1075
#23 0x020adf54 in QApplicationPrivate::notify_helper (this=0x9452910, receiver=0x99368b0, e=0xbffa99b0) at kernel/qapplication.cpp:4056
#24 0x020b567c in QApplication::notify (this=0x942bb10, receiver=0x99368b0, e=0xbffa99b0) at kernel/qapplication.cpp:3603
#25 0x01138bfa in KApplication::notify (this=0x942bb10, receiver=0x99368b0, event=0xbffa99b0) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x0082d6cb in QCoreApplication::notifyInternal (this=0x942bb10, receiver=0x99368b0, event=0xbffa99b0) at kernel/qcoreapplication.cpp:610
#27 0x0085a7ce in QCoreApplication::sendEvent (this=0x94550cc) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 QTimerInfoList::activateTimers (this=0x94550cc) at kernel/qeventdispatcher_unix.cpp:572
#29 0x008580e0 in timerSourceDispatch (source=0x9455098) at kernel/qeventdispatcher_glib.cpp:165
#30 0x00959e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0x0095d730 in ?? () from /lib/libglib-2.0.so.0
#32 0x0095d863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0x0085802c in QEventDispatcherGlib::processEvents (this=0x9452700, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#34 0x0214ebe5 in QGuiEventDispatcherGlib::processEvents (this=0x9452700, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#35 0x0082bc79 in QEventLoop::processEvents (this=0xbffa9c74, flags=) at kernel/qeventloop.cpp:149
#36 0x0082c0ca in QEventLoop::exec (this=0xbffa9c74, flags=...) at kernel/qeventloop.cpp:201
#37 0x0082e53f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#38 0x020addd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#39 0x0144a80d in kdemain (argc=1, argv=0x9414d28) at ../../../../plasma/shells/desktop/main.cpp:50
#40 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x93df008 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#41 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#42 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#43 0x0804fbaf in main (argc=2, argv=0xbffaa4d4, envp=0xbffaa4e0) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 223205

Reported using DrKonqi