Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.6.0
Operating System: Linux 2.6.31-16-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Plasma crashed while i was heavily switching desktops by clicking on the pager plasmoid  located in the panel.

 -- Backtrace:
Application: Espace de travail Plasma (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb77ed700 (LWP 2298))]

Thread 2 (Thread 0xaa678b70 (LWP 2315)):
#0  0x00323422 in __kernel_vsyscall ()
#1  0x00284e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x0734b78d in __pthread_cond_wait (cond=0xa7e9e30, mutex=0xa7e9e18) at forward.c:139
#3  0x0053c807 in QWaitConditionPrivate::wait (this=0xa0b6088, mutex=0xa0b6084, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0xa0b6088, mutex=0xa0b6084, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x03390052 in QHostInfoAgent::run (this=0xa0b6078) at kernel/qhostinfo.cpp:252
#6  0x0053b8ae in QThreadPrivate::start (arg=0xa0b6078) at thread/qthread_unix.cpp:244
#7  0x0028080e in start_thread (arg=0xaa678b70) at pthread_create.c:300
#8  0x0733e7ee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb77ed700 (LWP 2298)):
[KCrash Handler]
#6  0x01fc6d5c in QGraphicsLayoutItem::geometry (this=0x610054) at graphicsview/qgraphicslayoutitem.cpp:679
#7  0x02004acf in QGraphicsWidget::size (this=0x610044) at graphicsview/qgraphicswidget.cpp:304
#8  0x016651fa in AbstractTaskItem::basicPreferredSize (this=0xabd1388) at ../../../../plasma/applets/tasks/abstracttaskitem.cpp:108
#9  0x016607cb in TaskItemLayout::preferredColumns (this=0xa630d58) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:211
#10 0x016615ca in TaskItemLayout::gridLayoutSize (this=0xa630d58) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:227
#11 0x0166168c in TaskItemLayout::layoutItems (this=0xa630d58) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:250
#12 0x016628aa in TaskItemLayout::remove (this=0xa630d58, item=0xab63610) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:141
#13 0x01662aec in TaskItemLayout::removeTaskItem (this=0xa630d58, item=0xab63610) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:93
#14 0x0166e93e in TaskGroupItem::itemRemoved (this=0xa0b0350, groupableItem=0xab1c1f8) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:521
#15 0x0166fdc7 in TaskGroupItem::qt_metacall (this=0xa0b0350, _c=QMetaObject::InvokeMetaMethod, _id=40, _a=0xbfc77fc8) at ./taskgroupitem.moc:114
#16 0x00641c3a in QMetaObject::metacall (object=0xa0b0350, cl=121320352, idx=40, argv=0xbfc77fc8) at kernel/qmetaobject.cpp:237
#17 0x006506fb in QMetaObject::activate (sender=0xa63ec48, m=0x16afbf4, local_signal_index=1, argv=0xbfc77fc8) at kernel/qobject.cpp:3398
#18 0x016a13e3 in TaskManager::TaskGroup::itemRemoved (this=0xa63ec48, _t1=0xab1c1f8) at ./taskgroup.moc:152
#19 0x016a1c0b in TaskManager::TaskGroup::remove (this=0xa63ec48, item=0xab1c1f8) at ../../../libs/taskmanager/taskgroup.cpp:189
#20 0x0168971d in TaskManager::GroupManagerPrivate::removeTask (this=0xa29bde0, task=...) at ../../../libs/taskmanager/groupmanager.cpp:311
#21 0x01689c03 in TaskManager::GroupManagerPrivate::actuallyReloadTasks (this=0xa29bde0) at ../../../libs/taskmanager/groupmanager.cpp:164
#22 0x0168b3be in TaskManager::GroupManager::qt_metacall (this=0xa0fb690, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbfc781cc) at ./groupmanager.moc:108
#23 0x00641c3a in QMetaObject::metacall (object=0xa0fb690, cl=121320352, idx=18, argv=0xbfc781cc) at kernel/qmetaobject.cpp:237
#24 0x006506fb in QMetaObject::activate (sender=0xa29be20, m=0x74f5a4, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3398
#25 0x006a0c27 in QTimer::timeout (this=0xa29be20) at .moc/release-shared/moc_qtimer.cpp:134
#26 0x0065846e in QTimer::timerEvent (this=0xa29be20, e=0xbfc78670) at kernel/qtimer.cpp:271
#27 0x0064d1b4 in QObject::event (this=0xa29be20, e=0xc7084d8b) at kernel/qobject.cpp:1210
#28 0x01955c6c in QApplicationPrivate::notify_helper (this=0xa01d560, receiver=0xa29be20, e=0xbfc78670) at kernel/qapplication.cpp:4277
#29 0x0195ca1e in QApplication::notify (this=0xa017748, receiver=0xa29be20, e=0xbfc78670) at kernel/qapplication.cpp:3702
#30 0x00ef01aa in KApplication::notify (this=0xa017748, receiver=0xa29be20, event=0xbfc78670) at ../../kdeui/kernel/kapplication.cpp:302
#31 0x0063c9cb in QCoreApplication::notifyInternal (this=0xa017748, receiver=0xa29be20, event=0xbfc78670) at kernel/qcoreapplication.cpp:704
#32 0x0066bb86 in QCoreApplication::sendEvent (this=0xa020174) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QTimerInfoList::activateTimers (this=0xa020174) at kernel/qeventdispatcher_unix.cpp:603
#34 0x00668837 in timerSourceDispatch (source=0xa0201a8) at kernel/qeventdispatcher_glib.cpp:184
#35 idleTimerSourceDispatch (source=0xa0201a8) at kernel/qeventdispatcher_glib.cpp:231
#36 0x00a0ce88 in g_main_dispatch (context=0xa01ed18) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#37 IA__g_main_context_dispatch (context=0xa01ed18) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#38 0x00a10730 in g_main_context_iterate (context=0xa01ed18, block=<value optimized out>, dispatch=1, self=0xa01d078) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#39 0x00a10863 in IA__g_main_context_iteration (context=0xa01ed18, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#40 0x006684f5 in QEventDispatcherGlib::processEvents (this=0xa01d320, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#41 0x01a09635 in QGuiEventDispatcherGlib::processEvents (this=0xa01d320, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#42 0x0063b019 in QEventLoop::processEvents (this=0xbfc78934, flags=) at kernel/qeventloop.cpp:149
#43 0x0063b46a in QEventLoop::exec (this=0xbfc78934, flags=...) at kernel/qeventloop.cpp:201
#44 0x0063f62f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#45 0x01955d07 in QApplication::exec () at kernel/qapplication.cpp:3616
#46 0x0143080d in kdemain (argc=1, argv=0x9fcb0c0) at ../../../../plasma/shells/desktop/main.cpp:50
#47 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0xa0008c8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#48 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#49 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#50 0x0804fbaf in main (argc=2, argv=0xbfc79194, envp=0xbfc791a0) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 219646

Reported using DrKonqi