Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Closed konsole window.
happened only once, could not reproduce.

 -- Backtrace:
Application: Plasma Workspace (kdeinit), signal: Segmentation fault
[Current thread is 0 (LWP 29680)]

Thread 2 (Thread 0xa910eb90 (LWP 29687)):
#0  0xb801c430 in __kernel_vsyscall ()
#1  0xb650b0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66eb2ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7e135b2 in QWaitCondition::wait (this=0x97ca8d8, mutex=0x97ca8d4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7757ae2 in QHostInfoAgent::run (this=0x97ca8c8) at kernel/qhostinfo.cpp:260
#5  0xb7e1256e in QThreadPrivate::start (arg=0x97ca8c8) at thread/qthread_unix.cpp:189
#6  0xb65074ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66dc49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb6015a10 (LWP 29680)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0xa286850) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/tasks.h:93
#7  0xa94d30b9 in TaskItemLayout::preferredColumns (this=0x94ac0a8) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskitemlayout.cpp:206
#8  0xa94d31bd in TaskItemLayout::gridLayoutSize (this=0x94ac0a8) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskitemlayout.cpp:222
#9  0xa94d327b in TaskItemLayout::layoutItems (this=0x94ac0a8) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskitemlayout.cpp:245
#10 0xa94d3e62 in TaskItemLayout::insert (this=0x94ac0a8, index=1, item=0xa46e660) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskitemlayout.cpp:125
#11 0xa94d4057 in TaskItemLayout::addTaskItem (this=0x94ac0a8, item=0xa46e660) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskitemlayout.cpp:82
#12 0xa94dfc6d in TaskGroupItem::itemAdded (this=0x9753370, groupableItem=0x9bbd170) at /build/buildd/kdebase-workspace-4.2.90/plasma/applets/tasks/taskgroupitem.cpp:448
#13 0xa94e0ccc in TaskGroupItem::qt_metacall (this=0x9753370, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbf9374fc)
    at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/plasma/applets/tasks/taskgroupitem.moc:111
#14 0xb7f1ca58 in QMetaObject::activate (sender=0x9711208, from_signal_index=21, to_signal_index=21, argv=0xbf9374fc) at kernel/qobject.cpp:3120
#15 0xb7f1d6e2 in QMetaObject::activate (sender=0x9711208, m=0xa957bb74, local_signal_index=0, argv=0xbf9374fc) at kernel/qobject.cpp:3194
#16 0xa956d843 in TaskManager::TaskGroup::itemAdded (this=0x9711208, _t1=0x9bbd170) at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/taskgroup.moc:136
#17 0xa956df4a in TaskManager::TaskGroup::add (this=0x9711208, item=0x9bbd170) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/taskgroup.cpp:136
#18 0xa955206e in TaskManager::AbstractGroupingStrategy::closeGroup (this=0xa3d0260, group=0xa453bb0) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/abstractgroupingstrategy.cpp:138
#19 0xa9559a47 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0xa3d0260) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/strategies/programgroupingstrategy.cpp:193
#20 0xa955a6eb in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0xa3d0260, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf9376dc)
    at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:68
#21 0xb7f1ca58 in QMetaObject::activate (sender=0xa453bb0, from_signal_index=22, to_signal_index=22, argv=0xbf9376dc) at kernel/qobject.cpp:3120
#22 0xb7f1d6e2 in QMetaObject::activate (sender=0xa453bb0, m=0xa957bb74, local_signal_index=1, argv=0xbf9376dc) at kernel/qobject.cpp:3194
#23 0xa956d7f3 in TaskManager::TaskGroup::itemRemoved (this=0xa453bb0, _t1=0x9bf4770) at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/taskgroup.moc:143
#24 0xa956de40 in TaskManager::TaskGroup::remove (this=0xa453bb0, item=0x9bf4770) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/taskgroup.cpp:174
#25 0xa9554cd5 in TaskManager::GroupManagerPrivate::removeTask (this=0x973de00, task={d = 0xbf93777c}) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/groupmanager.cpp:296
#26 0xa9556e2a in TaskManager::GroupManager::qt_metacall (this=0x94f9370, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbf93785c)
    at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/groupmanager.moc:103
#27 0xb7f1ca58 in QMetaObject::activate (sender=0x9516000, from_signal_index=5, to_signal_index=5, argv=0xbf93785c) at kernel/qobject.cpp:3120
#28 0xb7f1d6e2 in QMetaObject::activate (sender=0x9516000, m=0xa957bd3c, local_signal_index=1, argv=0xbf93785c) at kernel/qobject.cpp:3194
#29 0xa9571003 in TaskManager::TaskManager::taskRemoved (this=0x9516000, _t1={d = 0xbf9378a4}) at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:159
#30 0xa9572767 in TaskManager::TaskManager::windowRemoved (this=0x9516000, w=52428835) at /build/buildd/kdebase-workspace-4.2.90/libs/taskmanager/taskmanager.cpp:279
#31 0xa9574814 in TaskManager::TaskManager::qt_metacall (this=0x9516000, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbf9379cc)
    at /build/buildd/kdebase-workspace-4.2.90/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:108
#32 0xb7f1ca58 in QMetaObject::activate (sender=0x93dc0b0, from_signal_index=6, to_signal_index=6, argv=0xbf9379cc) at kernel/qobject.cpp:3120
#33 0xb7f1d6e2 in QMetaObject::activate (sender=0x93dc0b0, m=0xb768f26c, local_signal_index=2, argv=0xbf9379cc) at kernel/qobject.cpp:3194
#34 0xb7627243 in KWindowSystem::windowRemoved (this=0x93dc0b0, _t1=52428835) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#35 0xb7629ac6 in KWindowSystemPrivate::removeClient (this=0x92b0c88, w=52428835) at /build/buildd/kde4libs-4.2.90/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#36 0xb7639133 in NETRootInfo::update (this=0x92b0c9c, dirty_props=0xbf937b14) at /build/buildd/kde4libs-4.2.90/kdeui/windowmanagement/netwm.cpp:2130
#37 0xb763951f in NETRootInfo::event (this=0x92b0c9c, event=0xbf93927c, properties=0xbf937bf8, properties_size=5) at /build/buildd/kde4libs-4.2.90/kdeui/windowmanagement/netwm.cpp:2053
#38 0xb7629d5d in KWindowSystemPrivate::x11Event (this=0x92b0c88, ev=0xbf93921c) at /build/buildd/kde4libs-4.2.90/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#39 0xb74da1a9 in KApplication::x11EventFilter (this=0x91c3e78, _event=0xbf93921c) at /build/buildd/kde4libs-4.2.90/kdeui/kernel/kapplication.cpp:911
#40 0xb4b6ec97 in PlasmaApp::x11EventFilter (this=0x91c3e78, event=0xbf93921c) at /build/buildd/kdebase-workspace-4.2.90/plasma/shells/desktop/plasmaapp.cpp:444
#41 0xb6a04c5e in qt_x11EventFilter (ev=0xbf93921c) at kernel/qapplication_x11.cpp:375
#42 0xb6a174ee in QApplication::x11ProcessEvent (this=0x91c3e78, event=0xbf93921c) at kernel/qapplication_x11.cpp:3287
#43 0xb6a4406a in x11EventSourceDispatch (s=0x9204c70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#44 0xb6554b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#45 0xb65580eb in ?? () from /usr/lib/libglib-2.0.so.0
#46 0xb6558268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#47 0xb7f321d8 in QEventDispatcherGlib::processEvents (this=0x91c5788, flags={i = -1080847400}) at kernel/qeventdispatcher_glib.cpp:324
#48 0xb6a43765 in QGuiEventDispatcherGlib::processEvents (this=0x91c5788, flags={i = -1080847352}) at kernel/qguieventdispatcher_glib.cpp:202
#49 0xb7f04dda in QEventLoop::processEvents (this=0xbf939480, flags={i = -1080847288}) at kernel/qeventloop.cpp:149
#50 0xb7f0521a in QEventLoop::exec (this=0xbf939480, flags={i = -1080847224}) at kernel/qeventloop.cpp:200
#51 0xb7f076c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#52 0xb69a1a47 in QApplication::exec () at kernel/qapplication.cpp:3526
#53 0xb4b59820 in kdemain (argc=1, argv=0x918ab40) at /build/buildd/kdebase-workspace-4.2.90/plasma/shells/desktop/main.cpp:50
#54 0x0804e1c0 in launch (argc=1, _name=0x91bc9ec "/usr/bin/plasma-desktop", args=0x91bca04 "", cwd=0x0, envc=0, envs=0x91bca08 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80512d0 "0") at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:671
#55 0x0804e99d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1163
#56 0x0804ef25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1356
#57 0x0804fb0a in main (argc=2, argv=0xbf939c74, envp=0xbf939c80) at /build/buildd/kde4libs-4.2.90/kinit/kinit.cpp:1783

This bug may be a duplicate of or related to bug 189812

Reported using DrKonqi