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 2.6.31-19-generic i686
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
While doing nothing in particular, my plasma workspace suddenly threw a segmentation fault, then reloaded. I suspect from review of Bugzilla that this issue has been solved in a more recent release.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7793700 (LWP 2829))]

Thread 2 (Thread 0xac60bb70 (LWP 2832)):
#0  0x0099e422 in __kernel_vsyscall ()
#1  0x00a09e15 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:122
#2  0x006f187d in __pthread_cond_wait (cond=0x99571d0, mutex=0x99571b8) at forward.c:139
#3  0x00db2e67 in QWaitConditionPrivate::wait (this=0x9856220, mutex=0x985621c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9856220, mutex=0x985621c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x00c4c922 in QHostInfoAgent::run (this=0x9856210) at kernel/qhostinfo.cpp:260
#6  0x00db1e32 in QThreadPrivate::start (arg=0x9856210) at thread/qthread_unix.cpp:188
#7  0x00a0580e in start_thread (arg=0xac60bb70) at pthread_create.c:300
#8  0x006e48de in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb7793700 (LWP 2829)):
[KCrash Handler]
#6  0x016ff622 in TaskItemLayout::layoutItems (this=0x971ffd8) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:320
#7  0x016ffe2a in TaskItemLayout::insert (this=0x971ffd8, index=3, item=0x9fa77b0) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:125
#8  0x0170000f in TaskItemLayout::addTaskItem (this=0x971ffd8, item=0x9fa77b0) at ../../../../plasma/applets/tasks/taskitemlayout.cpp:82
#9  0x0170cfa2 in TaskGroupItem::itemAdded (this=0x9b8a018, groupableItem=0xa0ce458) at ../../../../plasma/applets/tasks/taskgroupitem.cpp:477
#10 0x0170d627 in TaskGroupItem::qt_metacall (this=0x9b8a018, _c=QMetaObject::InvokeMetaMethod, _id=29, _a=0xbf8514f8) at ./taskgroupitem.moc:113
#11 0x00eb8263 in QMetaObject::activate (sender=0x9b89690, from_signal_index=21, to_signal_index=21, argv=0xbf8514f8) at kernel/qobject.cpp:3113
#12 0x00eb8ec2 in QMetaObject::activate (sender=0x9b89690, m=0x3169bf4, local_signal_index=0, argv=0xbf8514f8) at kernel/qobject.cpp:3187
#13 0x0315b433 in TaskManager::TaskGroup::itemAdded (this=0x9b89690, _t1=0xa0ce458) at ./taskgroup.moc:145
#14 0x0315be8b in TaskManager::TaskGroup::add (this=0x9b89690, item=0xa0ce458) at ../../../libs/taskmanager/taskgroup.cpp:138
#15 0x03143052 in TaskManager::GroupManagerPrivate::addTask (this=0x9b89b28, task=) at ../../../libs/taskmanager/groupmanager.cpp:290
#16 0x03143a45 in TaskManager::GroupManagerPrivate::actuallyReloadTasks (this=0x9b89b28) at ../../../libs/taskmanager/groupmanager.cpp:155
#17 0x031453be in TaskManager::GroupManager::qt_metacall (this=0x9a222c8, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0xbf85170c) at ./groupmanager.moc:108
#18 0x00eb8263 in QMetaObject::activate (sender=0x9b89b68, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#19 0x00eb8ec2 in QMetaObject::activate (sender=0x9b89b68, m=0xf93904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#20 0x00ef2667 in QTimer::timeout (this=0x9b89b68) at .moc/release-shared/moc_qtimer.cpp:128
#21 0x00ebd9ae in QTimer::timerEvent (this=0x9b89b68, e=0xbf851ba0) at kernel/qtimer.cpp:261
#22 0x00eb23bf in QObject::event (this=0x9b89b68, e=0xbf851ba0) at kernel/qobject.cpp:1075
#23 0x03967f54 in QApplicationPrivate::notify_helper (this=0x91613b0, receiver=0x9b89b68, e=0xbf851ba0) at kernel/qapplication.cpp:4056
#24 0x0396f67c in QApplication::notify (this=0x913a538, receiver=0x9b89b68, e=0xbf851ba0) at kernel/qapplication.cpp:3603
#25 0x01168bfa in KApplication::notify (this=0x913a538, receiver=0x9b89b68, event=0xbf851ba0) at ../../kdeui/kernel/kapplication.cpp:302
#26 0x00ea26cb in QCoreApplication::notifyInternal (this=0x913a538, receiver=0x9b89b68, event=0xbf851ba0) at kernel/qcoreapplication.cpp:610
#27 0x00ecf7ce in QCoreApplication::sendEvent (this=0x9163b3c) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#28 QTimerInfoList::activateTimers (this=0x9163b3c) at kernel/qeventdispatcher_unix.cpp:572
#29 0x00ecd0e0 in timerSourceDispatch (source=0x9163b08) at kernel/qeventdispatcher_glib.cpp:165
#30 0x008e7e88 in g_main_dispatch (context=0x9162ac0) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#31 IA__g_main_context_dispatch (context=0x9162ac0) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#32 0x008eb730 in g_main_context_iterate (context=0x9162ac0, block=<value optimized out>, dispatch=1, self=0x9160e88) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#33 0x008eb863 in IA__g_main_context_iteration (context=0x9162ac0, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#34 0x00ecd02c in QEventDispatcherGlib::processEvents (this=0x9161170, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#35 0x03a08be5 in QGuiEventDispatcherGlib::processEvents (this=0x9161170, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#36 0x00ea0c79 in QEventLoop::processEvents (this=0xbf851e64, flags=) at kernel/qeventloop.cpp:149
#37 0x00ea10ca in QEventLoop::exec (this=0xbf851e64, flags=...) at kernel/qeventloop.cpp:201
#38 0x00ea353f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#39 0x03967dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#40 0x0144e80d in kdemain (argc=1, argv=0x911add8) at ../../../../plasma/shells/desktop/main.cpp:50
#41 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x91097c8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#42 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#43 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#44 0x0804fbaf in main (argc=2, argv=0xbf8526c4, envp=0xbf8526d0) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 203558

Reported using DrKonqi