Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.2
Operating System: Linux 2.6.31-2-generic x86_64
Distribution: Ubuntu karmic (development branch)

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f46a1bba760 (LWP 3482))]

Thread 3 (Thread 0x7f46814de950 (LWP 3483)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f46a15fa49b in QWaitConditionPrivate::wait (this=<value optimized out>, mutex=0x276e2e8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=<value optimized out>, mutex=0x276e2e8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007f469da3671c in QHostInfoAgent::run (this=0x276e2d0) at kernel/qhostinfo.cpp:260
#4  0x00007f46a15f93e5 in QThreadPrivate::start (arg=0x276e2d0) at thread/qthread_unix.cpp:188
#5  0x00007f469e37a3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007f469ef611bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f467d3c1950 (LWP 3484)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:217
#1  0x00007f46a15f8e75 in thread_sleep (ti=0x7f467d3c0fa0) at thread/qthread_unix.cpp:297
#2  0x00007f46a15f8fe0 in QThread::msleep (msecs=<value optimized out>) at thread/qthread_unix.cpp:323
#3  0x00007f468277f4a3 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#4  0x00007f46a15f93e5 in QThreadPrivate::start (arg=0x2f66d60) at thread/qthread_unix.cpp:188
#5  0x00007f469e37a3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#6  0x00007f469ef611bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f46a1bba760 (LWP 3482)):
[KCrash Handler]
#5  0x00007f4684591296 in TaskManager::GroupManager::manualSortingRequest(TaskManager::AbstractGroupableItem*, int) () from /usr/lib/libtaskmanager.so.4
#6  0x00007f468458f697 in TaskManager::AbstractGroupingStrategy::closeGroup(TaskManager::TaskGroup*) () from /usr/lib/libtaskmanager.so.4
#7  0x00007f46845965db in ?? () from /usr/lib/libtaskmanager.so.4
#8  0x00007f4684597215 in ?? () from /usr/lib/libtaskmanager.so.4
#9  0x00007f46a16f4e1c in QMetaObject::activate (sender=0x2a97160, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#10 0x00007f46845a7ed2 in TaskManager::TaskGroup::itemRemoved(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#11 0x00007f46845a85b1 in TaskManager::TaskGroup::remove(TaskManager::AbstractGroupableItem*) () from /usr/lib/libtaskmanager.so.4
#12 0x00007f4684591cc8 in ?? () from /usr/lib/libtaskmanager.so.4
#13 0x00007f46845940ca in TaskManager::GroupManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#14 0x00007f46a16f4e1c in QMetaObject::activate (sender=0x257e100, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#15 0x00007f46845ab345 in TaskManager::TaskManager::taskRemoved(KSharedPtr<TaskManager::Task>) () from /usr/lib/libtaskmanager.so.4
#16 0x00007f46845acf0d in TaskManager::TaskManager::windowRemoved(unsigned long) () from /usr/lib/libtaskmanager.so.4
#17 0x00007f46845ae6a7 in TaskManager::TaskManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libtaskmanager.so.4
#18 0x00007f46a16f4e1c in QMetaObject::activate (sender=0x202f7b0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3113
#19 0x00007f46a03fd362 in KWindowSystem::windowRemoved (this=0x0, _t1=73497944) at ./kwindowsystem.moc:127
#20 0x00007f46a040015a in KWindowSystemPrivate::removeClient (this=0x2262fa0, w=73497944) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#21 0x00007f46a040e57d in NETRootInfo::update (this=0x2262fc8, dirty_props=<value optimized out>) at ../../kdeui/windowmanagement/netwm.cpp:2135
#22 0x00007f46a040e8e3 in NETRootInfo::event (this=0x2262fc8, event=<value optimized out>, properties=0x7fff795e9940, properties_size=5) at ../../kdeui/windowmanagement/netwm.cpp:2058
#23 0x00007f46a040040c in KWindowSystemPrivate::x11Event (this=0x2262fa0, ev=0x7fff795eb310) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#24 0x00007f46a02d0896 in KAppX11HackWidget::publicx11Event (this=<value optimized out>, _event=0x7fff795eb310) at ../../kdeui/kernel/kapplication.cpp:911
#25 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff795eb310) at ../../kdeui/kernel/kapplication.cpp:961
#26 0x00007f4695c32a57 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#27 0x00007f469f6f5a31 in qt_x11EventFilter (ev=0x7fff795eb310) at kernel/qapplication_x11.cpp:375
#28 0x00007f469f706094 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff795eb310) at kernel/qapplication_x11.cpp:3271
#29 0x00007f469f73031c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x00007f469e5ca9fe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#31 0x00007f469e5ce3c8 in ?? () from /usr/lib/libglib-2.0.so.0
#32 0x00007f469e5ce4f0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#33 0x00007f46a17081f6 in QEventDispatcherGlib::processEvents (this=0x1e86510, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#34 0x00007f469f72face in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#35 0x00007f46a16de572 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#36 0x00007f46a16de944 in QEventLoop::exec (this=0x7fff795eb640, flags=) at kernel/qeventloop.cpp:201
#37 0x00007f46a16e0af9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#38 0x00007f4695c1f6af in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#39 0x0000000000406d88 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a2e1 "0") at ../../kinit/kinit.cpp:676
#40 0x0000000000407a80 in handle_launcher_request (sock=7, who=<value optimized out>) at ../../kinit/kinit.cpp:1168
#41 0x000000000040801f in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1361
#42 0x0000000000408bd2 in main (argc=2, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1788

This bug may be a duplicate of or related to bug 199552

Reported using DrKonqi