Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4544)]

Thread 2 (Thread 0x7ff30c1e1950 (LWP 4546)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007ff32d377d19 in QWaitCondition::wait (this=0x1c5d8a0, mutex=0x1c5d898, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007ff32c1fd81c in QHostInfoAgent::run (this=0x1c5d880) at kernel/qhostinfo.cpp:260
#3  0x00007ff32d376d35 in QThreadPrivate::start (arg=0x1c5d880) at thread/qthread_unix.cpp:188
#4  0x00007ff32926b3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007ff329e4ffcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff32d935750 (LWP 4544)):
[KCrash Handler]
#5  AbstractTaskItem::basicPreferredSize (this=0x4516c90) at /build/buildd/kdebase-workspace-4.3.1/plasma/applets/tasks/tasks.h:92
#6  0x00007ff3103464c2 in TaskItemLayout::maximumRows (this=0x1c16df0) at /build/buildd/kdebase-workspace-4.3.1/plasma/applets/tasks/taskitemlayout.cpp:185
#7  0x00007ff31034eb37 in TaskGroupItem::optimumCapacity (this=0x1c50bd0) at /build/buildd/kdebase-workspace-4.3.1/plasma/applets/tasks/taskgroupitem.cpp:1224
#8  0x00007ff310341df0 in Tasks::adjustGroupingStrategy (this=0x16dfd20) at /build/buildd/kdebase-workspace-4.3.1/plasma/applets/tasks/tasks.cpp:241
#9  0x00007ff310342008 in Tasks::constraintsEvent (this=0x16dfd20, constraints={i = 703227176}) at /build/buildd/kdebase-workspace-4.3.1/plasma/applets/tasks/tasks.cpp:165
#10 0x00007ff324d80e69 in Plasma::Applet::flushPendingConstraintsEvents (this=0x16dfd20) at /build/buildd/kde4libs-4.3.1/plasma/applet.cpp:1173
#11 0x00007ff324d814b5 in Plasma::Applet::timerEvent (this=0x16dfd20, event=<value optimized out>) at /build/buildd/kde4libs-4.3.1/plasma/applet.cpp:2120
#12 0x00007ff32d470263 in QObject::event (this=0x16dfd20, e=0x7ff329ea6528) at kernel/qobject.cpp:1075
#13 0x00007ff32b01918b in QGraphicsWidget::event (this=0x16dfd20, event=0x7fff359741b0) at graphicsview/qgraphicswidget.cpp:1340
#14 0x00007ff32aa26f4d in QApplicationPrivate::notify_helper (this=0x1374920, receiver=0x16dfd20, e=0x7fff359741b0) at kernel/qapplication.cpp:4056
#15 0x00007ff32aa2f18a in QApplication::notify (this=0x1335ab0, receiver=0x16dfd20, e=0x7fff359741b0) at kernel/qapplication.cpp:4021
#16 0x00007ff32bb39deb in KApplication::notify (this=0x1335ab0, receiver=0x16dfd20, event=0x7fff359741b0) at /build/buildd/kde4libs-4.3.1/kdeui/kernel/kapplication.cpp:302
#17 0x00007ff32d4606ac in QCoreApplication::notifyInternal (this=0x1335ab0, receiver=0x16dfd20, event=0x7fff359741b0) at kernel/qcoreapplication.cpp:610
#18 0x00007ff32d48d516 in QTimerInfoList::activateTimers (this=0x1377ec0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#19 0x00007ff32d489b2d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#20 0x00007ff3294ba20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007ff3294bd8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#22 0x00007ff3294bda7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007ff32d489a8f in QEventDispatcherGlib::processEvents (this=0x1374450, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#24 0x00007ff32aabfbdf in QGuiEventDispatcherGlib::processEvents (this=0x3ff0000000000000, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#25 0x00007ff32d45ef42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 899105824}) at kernel/qeventloop.cpp:149
#26 0x00007ff32d45f314 in QEventLoop::exec (this=0x7fff35974460, flags={i = 899105904}) at kernel/qeventloop.cpp:201
#27 0x00007ff32d4615e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#28 0x00007ff3213a03eb in kdemain (argc=1, argv=0x1319fb0) at /build/buildd/kdebase-workspace-4.3.1/plasma/shells/desktop/main.cpp:50
#29 0x0000000000407215 in launch (argc=1, _name=0x1325fd8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x1325ff8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a3a1 "0") at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:677
#30 0x0000000000407a38 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1169
#31 0x0000000000407fe5 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1362
#32 0x0000000000408b26 in main (argc=2, argv=0x7fff35975308, envp=0x7fff35975320) at /build/buildd/kde4libs-4.3.1/kinit/kinit.cpp:1793

Reported using DrKonqi