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 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 4066)]

Thread 3 (Thread 0xa91dcb90 (LWP 4082)):
#0  0xb7fe6430 in __kernel_vsyscall ()
#1  0xb64b20e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66922ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7de59b2 in QWaitCondition::wait (this=0x8f0a5e0, mutex=0x8f0a5dc, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7721152 in QHostInfoAgent::run (this=0x8f0a5d0) at kernel/qhostinfo.cpp:260
#5  0xb7de496e in QThreadPrivate::start (arg=0x8f0a5d0) at thread/qthread_unix.cpp:189
#6  0xb64ae4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb668349e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xa3ecfb90 (LWP 4144)):
#0  0xb7fe6430 in __kernel_vsyscall ()
#1  0xb64b2412 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6692344 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7de4359 in thread_sleep (ti=0xa3ecf2b0) at thread/qthread_unix.cpp:298
#4  0xb7de448b in QThread::msleep (msecs=<value optimized out>) at thread/qthread_unix.cpp:324
#5  0xa92a50c8 in ?? () from /usr/lib/kde4/plasma_applet_cwp.so
#6  0xb7de496e in QThreadPrivate::start (arg=0x9087800) at thread/qthread_unix.cpp:189
#7  0xb64ae4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb668349e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5fbca10 (LWP 4066)):
[KCrash Handler]
#6  0xa94e632a in TaskManager::GroupManager::manualSortingRequest () from /usr/lib/libtaskmanager.so.4
#7  0xa94e431b in TaskManager::AbstractGroupingStrategy::closeGroup () from /usr/lib/libtaskmanager.so.4
#8  0xa94ebf27 in ?? () from /usr/lib/libtaskmanager.so.4
#9  0xa94ece5b in ?? () from /usr/lib/libtaskmanager.so.4
#10 0xb7eeeca8 in QMetaObject::activate (sender=0x9ddb420, from_signal_index=22, to_signal_index=22, argv=0xbf8015ec) at kernel/qobject.cpp:3069
#11 0xb7eef932 in QMetaObject::activate (sender=0x9ddb420, m=0xa950eb74, local_signal_index=1, argv=0xbf8015ec) at kernel/qobject.cpp:3143
#12 0xa94ffd83 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#13 0xa95007ab in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#14 0xa94e6ba5 in ?? () from /usr/lib/libtaskmanager.so.4
#15 0xa94e946a in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#16 0xb7eeeca8 in QMetaObject::activate (sender=0x8b65d68, from_signal_index=5, to_signal_index=5, argv=0xbf80177c) at kernel/qobject.cpp:3069
#17 0xb7eef932 in QMetaObject::activate (sender=0x8b65d68, m=0xa950ed3c, local_signal_index=1, argv=0xbf80177c) at kernel/qobject.cpp:3143
#18 0xa9503823 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#19 0xa95050cf in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#20 0xa9506fec in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#21 0xb7eeeca8 in QMetaObject::activate (sender=0x8a3a0f0, from_signal_index=6, to_signal_index=6, argv=0xbf8018ec) at kernel/qobject.cpp:3069
#22 0xb7eef932 in QMetaObject::activate (sender=0x8a3a0f0, m=0xb765726c, local_signal_index=2, argv=0xbf8018ec) at kernel/qobject.cpp:3143
#23 0xb75ef853 in KWindowSystem::windowRemoved (this=0x8a3a0f0, _t1=50337276) at /build/buildd/kde4libs-4.2.95/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0xb75f20d6 in KWindowSystemPrivate::removeClient (this=0x8823a10, w=50337276) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0xb7601753 in NETRootInfo::update (this=0x8823a24, dirty_props=0xbf801a34) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#26 0xb7601b3f in NETRootInfo::event (this=0x8823a24, event=0xbf80214c, properties=0xbf801b18, properties_size=5) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0xb75f236d in KWindowSystemPrivate::x11Event (this=0x8823a10, ev=0xbf8020ec) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0xb74a26f9 in KApplication::x11EventFilter (this=0x878d568, _event=0xbf8020ec) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#29 0xb4b2ae37 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0xb69cbf3e in qt_x11EventFilter (ev=0xbf8020ec) at kernel/qapplication_x11.cpp:375
#31 0xb69de6a8 in QApplication::x11ProcessEvent (this=0x878d568, event=0xbf8020ec) at kernel/qapplication_x11.cpp:3273
#32 0xb6a0ac6a in x11EventSourceDispatch (s=0x8796170, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb64fbb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb64ff0eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb64ff268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb7f04438 in QEventDispatcherGlib::processEvents (this=0x8790bd0, flags={i = -1082121560}) at kernel/qeventdispatcher_glib.cpp:323
#37 0xb6a0a365 in QGuiEventDispatcherGlib::processEvents (this=0x8790bd0, flags={i = -1082121512}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb7ed706a in QEventLoop::processEvents (this=0xbf802350, flags={i = -1082121448}) at kernel/qeventloop.cpp:149
#39 0xb7ed74aa in QEventLoop::exec (this=0xbf802350, flags={i = -1082121384}) at kernel/qeventloop.cpp:200
#40 0xb7ed9959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#41 0xb6968d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#42 0xb4b15510 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804e1c0 in launch (argc=1, _name=0x875aebc "/usr/bin/plasma-desktop", args=0x875aed4 "", cwd=0x0, envc=0, envs=0x875aed8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80512d1 "0") at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:672
#44 0x0804e99d in handle_launcher_request (sock=7, who=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1164
#45 0x0804ef25 in handle_requests (waitForPid=0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1357
#46 0x0804fb0a in main (argc=2, argv=0xbf802b44, envp=0xbf802b50) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi