Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.95 (KDE 4.2.95 (KDE 4.3 RC1))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-11-generic x86_64
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4353)]

Thread 2 (Thread 0x7fe364c71950 (LWP 4361)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007fe384cba939 in QWaitCondition::wait (this=0x2a0b980, mutex=0x2a0b978, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007fe383b374cc in QHostInfoAgent::run (this=0x2a0b960) at kernel/qhostinfo.cpp:260
#3  0x00007fe384cb9952 in QThreadPrivate::start (arg=0x2a0b960) at thread/qthread_unix.cpp:189
#4  0x00007fe380b3b3ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007fe38171ffcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe38527e750 (LWP 4353)):
[KCrash Handler]
#5  0x00007fe36841b766 in TaskManager::GroupManager::manualSortingRequest () from /usr/lib/libtaskmanager.so.4
#6  0x00007fe368419b3a in TaskManager::AbstractGroupingStrategy::closeGroup () from /usr/lib/libtaskmanager.so.4
#7  0x00007fe368420da8 in ?? () from /usr/lib/libtaskmanager.so.4
#8  0x00007fe368421c2d in ?? () from /usr/lib/libtaskmanager.so.4
#9  0x00007fe384db81f2 in QMetaObject::activate (sender=0x32533c0, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x1) at kernel/qobject.cpp:3069
#10 0x00007fe368432a92 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#11 0x00007fe3684333b1 in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#12 0x00007fe36841bed1 in ?? () from /usr/lib/libtaskmanager.so.4
#13 0x00007fe36841e51d in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#14 0x00007fe384db81f2 in QMetaObject::activate (sender=0x2656780, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x1) at kernel/qobject.cpp:3069
#15 0x00007fe368435f35 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#16 0x00007fe36843756e in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#17 0x00007fe3684392bf in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#18 0x00007fe384db81f2 in QMetaObject::activate (sender=0x26e3d40, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x1) at kernel/qobject.cpp:3069
#19 0x00007fe38359cab2 in KWindowSystem::windowRemoved (this=0x0, _t1=27263594) at /build/buildd/kde4libs-4.2.95/obj-x86_64-linux-gnu/kdeui/kwindowsystem.moc:127
#20 0x00007fe38359effb in KWindowSystemPrivate::removeClient (this=0x26e3fd0, w=27263594) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#21 0x00007fe3835adfe1 in NETRootInfo::update (this=0x26e3ff8, dirty_props=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#22 0x00007fe3835ae36b in NETRootInfo::event (this=0x26e3ff8, event=<value optimized out>, properties=0x7fff8d2b80c0, properties_size=5)
    at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#23 0x00007fe38359f2cb in KWindowSystemPrivate::x11Event (this=0x26e3fd0, ev=0x7fff8d2b8ab0) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#24 0x00007fe38346ea43 in KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff8d2b8ab0) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#25 0x00007fe378ba3b57 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#26 0x00007fe382388b1f in qt_x11EventFilter (ev=0x7fff8d2b8ab0) at kernel/qapplication_x11.cpp:375
#27 0x00007fe38239bfaf in QApplication::x11ProcessEvent (this=0x22de9c0, event=0x7fff8d2b8ab0) at kernel/qapplication_x11.cpp:3273
#28 0x00007fe3823c5464 in x11EventSourceDispatch (s=0x2323a10, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#29 0x00007fe380d8a20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0x00007fe380d8d8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0x00007fe380d8da7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0x00007fe384dcbe6f in QEventDispatcherGlib::processEvents (this=0x231efe0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:323
#33 0x00007fe3823c4bef in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007fe384da1002 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -1926525536}) at kernel/qeventloop.cpp:149
#35 0x00007fe384da13cd in QEventLoop::exec (this=0x7fff8d2b8de0, flags={i = -1926525456}) at kernel/qeventloop.cpp:200
#36 0x00007fe384da3694 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#37 0x00007fe378b9063b in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#38 0x000000000040714e in launch (argc=1, _name=0x22a7458 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x22a7478 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a309 "0") at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:672
#39 0x0000000000407978 in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1164
#40 0x0000000000407f25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1357
#41 0x0000000000408a66 in main (argc=2, argv=0x7fff8d2b9c78, envp=0x7fff8d2b9c90) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi