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: 4.5.1
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 10218)]

Thread 2 (Thread 0xa8df2b90 (LWP 10222)):
#0  0xb7fe1430 in __kernel_vsyscall ()
#1  0xb64d60e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66b62ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7dde5b2 in QWaitCondition::wait (this=0x8cde178, mutex=0x8cde174, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7722ae2 in QHostInfoAgent::run (this=0x8cde168) at kernel/qhostinfo.cpp:260
#5  0xb7ddd56e in QThreadPrivate::start (arg=0x8cde168) at thread/qthread_unix.cpp:189
#6  0xb64d24ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66a749e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5fe0a10 (LWP 10218)):
[KCrash Handler]
#6  0xa96f132a in TaskManager::GroupManager::manualSortingRequest () from /usr/lib/libtaskmanager.so.4
#7  0xa96ef31b in TaskManager::AbstractGroupingStrategy::closeGroup () from /usr/lib/libtaskmanager.so.4
#8  0xa96f6f27 in ?? () from /usr/lib/libtaskmanager.so.4
#9  0xa96f7e5b in ?? () from /usr/lib/libtaskmanager.so.4
#10 0xb7ee7a58 in QMetaObject::activate (sender=0x98ea228, from_signal_index=22, to_signal_index=22, argv=0xbf8fadbc) at kernel/qobject.cpp:3120
#11 0xb7ee86e2 in QMetaObject::activate (sender=0x98ea228, m=0xa9719b74, local_signal_index=1, argv=0xbf8fadbc) at kernel/qobject.cpp:3194
#12 0xa970ad83 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#13 0xa970b7ab in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#14 0xa96f1ba5 in ?? () from /usr/lib/libtaskmanager.so.4
#15 0xa96f446a in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#16 0xb7ee7a58 in QMetaObject::activate (sender=0x8702b58, from_signal_index=5, to_signal_index=5, argv=0xbf8faf4c) at kernel/qobject.cpp:3120
#17 0xb7ee86e2 in QMetaObject::activate (sender=0x8702b58, m=0xa9719d3c, local_signal_index=1, argv=0xbf8faf4c) at kernel/qobject.cpp:3194
#18 0xa970e823 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#19 0xa97100cf in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#20 0xa9711fec in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#21 0xb7ee7a58 in QMetaObject::activate (sender=0x867bfd8, from_signal_index=6, to_signal_index=6, argv=0xbf8fb0bc) at kernel/qobject.cpp:3120
#22 0xb7ee86e2 in QMetaObject::activate (sender=0x867bfd8, m=0xb765a26c, local_signal_index=2, argv=0xbf8fb0bc) at kernel/qobject.cpp:3194
#23 0xb75f2853 in KWindowSystem::windowRemoved (this=0x867bfd8, _t1=54669054) at /build/buildd/kde4libs-4.2.95/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0xb75f50d6 in KWindowSystemPrivate::removeClient (this=0x85f3ba8, w=54669054) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0xb76047c2 in NETRootInfo::update (this=0x85f3bbc, dirty_props=0xbf8fb204) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2131
#26 0xb7604b3f in NETRootInfo::event (this=0x85f3bbc, event=0xbf8fc96c, properties=0xbf8fb2e8, properties_size=5) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0xb75f536d in KWindowSystemPrivate::x11Event (this=0x85f3ba8, ev=0xbf8fc90c) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0xb74a56f9 in KApplication::x11EventFilter (this=0x84520a0, _event=0xbf8fc90c) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#29 0xb4b3ae37 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0xb69cfc5e in qt_x11EventFilter (ev=0xbf8fc90c) at kernel/qapplication_x11.cpp:375
#31 0xb69e24ee in QApplication::x11ProcessEvent (this=0x84520a0, event=0xbf8fc90c) at kernel/qapplication_x11.cpp:3287
#32 0xb6a0f06a in x11EventSourceDispatch (s=0x8492508, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb651fb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb65230eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb6523268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb7efd1d8 in QEventDispatcherGlib::processEvents (this=0x848d988, flags={i = -1081095480}) at kernel/qeventdispatcher_glib.cpp:324
#37 0xb6a0e765 in QGuiEventDispatcherGlib::processEvents (this=0x848d988, flags={i = -1081095432}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb7ecfdda in QEventLoop::processEvents (this=0xbf8fcb70, flags={i = -1081095368}) at kernel/qeventloop.cpp:149
#39 0xb7ed021a in QEventLoop::exec (this=0xbf8fcb70, flags={i = -1081095304}) at kernel/qeventloop.cpp:200
#40 0xb7ed26c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0xb696ca47 in QApplication::exec () at kernel/qapplication.cpp:3526
#42 0xb4b25510 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804e1c0 in launch (argc=1, _name=0x84703e4 "/usr/bin/plasma-desktop", args=0x84703fc "", cwd=0x0, envc=0, envs=0x8470400 "", 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=0xbf8fd364, envp=0xbf8fd370) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi