Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3531)]

Thread 2 (Thread 0xa923fb90 (LWP 3537)):
#0  0xb7fff430 in __kernel_vsyscall ()
#1  0xb65190e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66f92ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7dfb172 in QWaitCondition::wait (this=0x9784018, mutex=0x9784014, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb773bac2 in QHostInfoAgent::run (this=0x9784008) at kernel/qhostinfo.cpp:260
#5  0xb7dfa132 in QThreadPrivate::start (arg=0x9784008) at thread/qthread_unix.cpp:188
#6  0xb65154ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66ea49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb6023a10 (LWP 3531)):
[KCrash Handler]
#6  AbstractTaskItem::basicPreferredSize (this=0x99b1be0) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/tasks.h:92
#7  0xa959b4d1 in TaskItemLayout::preferredColumns (this=0x9447688) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:206
#8  0xa959befd in TaskItemLayout::gridLayoutSize (this=0x9447688) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:222
#9  0xa959bfbb in TaskItemLayout::layoutItems (this=0x9447688) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:245
#10 0xa959c9a4 in TaskItemLayout::remove (this=0x9447688, item=0xa275040) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:136
#11 0xa959ca5c in TaskItemLayout::removeTaskItem (this=0x9447688, item=0xa275040) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskitemlayout.cpp:93
#12 0xa95a8c16 in TaskGroupItem::itemRemoved (this=0x9576328, groupableItem=0x988cb40) at /build/buildd/kdebase-workspace-4.3.0/plasma/applets/tasks/taskgroupitem.cpp:521
#13 0xa95aa136 in TaskGroupItem::qt_metacall (this=0x9576328, _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0xbfb1889c)
    at /build/buildd/kdebase-workspace-4.3.0/obj-i486-linux-gnu/plasma/applets/tasks/taskgroupitem.moc:114
#14 0xb7f041b8 in QMetaObject::activate (sender=0x962a110, from_signal_index=22, to_signal_index=22, argv=0xbfb1889c) at kernel/qobject.cpp:3113
#15 0xb7f04e42 in QMetaObject::activate (sender=0x962a110, m=0xa95eab74, local_signal_index=1, argv=0xbfb1889c) at kernel/qobject.cpp:3187
#16 0xa95dbed3 in TaskManager::TaskGroup::itemRemoved (this=0x962a110, _t1=0x988cb40) at /build/buildd/kdebase-workspace-4.3.0/obj-i486-linux-gnu/libs/taskmanager/taskgroup.moc:146
#17 0xa95dc8fb in TaskManager::TaskGroup::remove (this=0x962a110, item=0x988cb40) at /build/buildd/kdebase-workspace-4.3.0/libs/taskmanager/taskgroup.cpp:182
#18 0xa95c381d in TaskManager::GroupManagerPrivate::removeTask (this=0x953ce30, task={d = 0xbfb1895c}) at /build/buildd/kdebase-workspace-4.3.0/libs/taskmanager/groupmanager.cpp:311
#19 0xa95c517a in TaskManager::GroupManager::qt_metacall (this=0x96100a8, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfb18a3c)
    at /build/buildd/kdebase-workspace-4.3.0/obj-i486-linux-gnu/libs/taskmanager/groupmanager.moc:105
#20 0xb7f041b8 in QMetaObject::activate (sender=0x9611490, from_signal_index=5, to_signal_index=5, argv=0xbfb18a3c) at kernel/qobject.cpp:3113
#21 0xb7f04e42 in QMetaObject::activate (sender=0x9611490, m=0xa95ead3c, local_signal_index=1, argv=0xbfb18a3c) at kernel/qobject.cpp:3187
#22 0xa95df973 in TaskManager::TaskManager::taskRemoved (this=0x9611490, _t1={d = 0xbfb18a84}) at /build/buildd/kdebase-workspace-4.3.0/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:162
#23 0xa95e121f in TaskManager::TaskManager::windowRemoved (this=0x9611490, w=58720281) at /build/buildd/kdebase-workspace-4.3.0/libs/taskmanager/taskmanager.cpp:279
#24 0xa95e313c in TaskManager::TaskManager::qt_metacall (this=0x9611490, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfb18bac)
    at /build/buildd/kdebase-workspace-4.3.0/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:110
#25 0xb7f041b8 in QMetaObject::activate (sender=0x92ddde0, from_signal_index=6, to_signal_index=6, argv=0xbfb18bac) at kernel/qobject.cpp:3113
#26 0xb7f04e42 in QMetaObject::activate (sender=0x92ddde0, m=0xb767426c, local_signal_index=2, argv=0xbfb18bac) at kernel/qobject.cpp:3187
#27 0xb760c5c3 in KWindowSystem::windowRemoved (this=0x92ddde0, _t1=58720281) at /build/buildd/kde4libs-4.3.0/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#28 0xb760ee46 in KWindowSystemPrivate::removeClient (this=0x91460e0, w=58720281) at /build/buildd/kde4libs-4.3.0/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#29 0xb761dced in NETRootInfo::update (this=0x91460f4, dirty_props=0xbfb18d14) at /build/buildd/kde4libs-4.3.0/kdeui/windowmanagement/netwm.cpp:2183
#30 0xb761e9ef in NETRootInfo::event (this=0x91460f4, event=0xbfb1a47c, properties=0xbfb18df8, properties_size=5) at /build/buildd/kde4libs-4.3.0/kdeui/windowmanagement/netwm.cpp:2058
#31 0xb760f0dd in KWindowSystemPrivate::x11Event (this=0x91460e0, ev=0xbfb1a41c) at /build/buildd/kde4libs-4.3.0/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#32 0xb74bf8e9 in KApplication::x11EventFilter (this=0x9047348, _event=0xbfb1a41c) at /build/buildd/kde4libs-4.3.0/kdeui/kernel/kapplication.cpp:911
#33 0xb4b8ba47 in PlasmaApp::x11EventFilter (this=0x9047348, event=0xbfb1a41c) at /build/buildd/kdebase-workspace-4.3.0/plasma/shells/desktop/plasmaapp.cpp:490
#34 0xb6a12e5e in qt_x11EventFilter (ev=0xbfb1a41c) at kernel/qapplication_x11.cpp:375
#35 0xb6a256df in QApplication::x11ProcessEvent (this=0x9047348, event=0xbfb1a41c) at kernel/qapplication_x11.cpp:3271
#36 0xb6a5237a in x11EventSourceDispatch (s=0x904fca8, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#37 0xb6562b88 in IA__g_main_context_dispatch (context=0x904ee90) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:1814
#38 0xb65660eb in g_main_context_iterate (context=0x904ee90, block=1, dispatch=1, self=0x904c988) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2448
#39 0xb6566268 in IA__g_main_context_iteration (context=0x904ee90, may_block=1) at /build/buildd/glib2.0-2.20.1/glib/gmain.c:2511
#40 0xb7f1a2f8 in QEventDispatcherGlib::processEvents (this=0x904cbe8, flags={i = -1078876712}) at kernel/qeventdispatcher_glib.cpp:327
#41 0xb6a51a75 in QGuiEventDispatcherGlib::processEvents (this=0x904cbe8, flags={i = -1078876664}) at kernel/qguieventdispatcher_glib.cpp:202
#42 0xb7eed1fa in QEventLoop::processEvents (this=0xbfb1a680, flags={i = -1078876600}) at kernel/qeventloop.cpp:149
#43 0xb7eed642 in QEventLoop::exec (this=0xbfb1a680, flags={i = -1078876536}) at kernel/qeventloop.cpp:201
#44 0xb7eefae9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#45 0xb69afbb7 in QApplication::exec () at kernel/qapplication.cpp:3525
#46 0xb4b76120 in kdemain (argc=1, argv=0x9014a38) at /build/buildd/kdebase-workspace-4.3.0/plasma/shells/desktop/main.cpp:50
#47 0x0804e27d in launch (argc=1, _name=0x8fdf57c "/usr/bin/plasma-desktop", args=0x8fdf594 "", cwd=0x0, envc=0, envs=0x8fdf598 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x805136d "0") at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:676
#48 0x0804ea5d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1168
#49 0x0804efe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1361
#50 0x0804fbca in main (argc=2, argv=0xbfb1ae74, envp=0xbfb1ae80) at /build/buildd/kde4libs-4.3.0/kinit/kinit.cpp:1788

Reported using DrKonqi