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

What I was doing when the application crashed:
I just started xine (using Lanzelot) and KDE crashed.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3911)]

Thread 2 (Thread 0xa7addb90 (LWP 3919)):
#0  0xb7ffa430 in __kernel_vsyscall ()
#1  0xb64eb0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66cb2ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7df35b2 in QWaitCondition::wait (this=0x9117c40, mutex=0x9117c3c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb7737ae2 in QHostInfoAgent::run (this=0x9117c30) at kernel/qhostinfo.cpp:260
#5  0xb7df256e in QThreadPrivate::start (arg=0x9117c30) at thread/qthread_unix.cpp:189
#6  0xb64e74ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66bc49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5ff5a10 (LWP 3911)):
[KCrash Handler]
#6  0xa84b632a in TaskManager::GroupManager::manualSortingRequest () from /usr/lib/libtaskmanager.so.4
#7  0xa84b431b in TaskManager::AbstractGroupingStrategy::closeGroup () from /usr/lib/libtaskmanager.so.4
#8  0xa84bbf27 in ?? () from /usr/lib/libtaskmanager.so.4
#9  0xa84bce5b in ?? () from /usr/lib/libtaskmanager.so.4
#10 0xb7efca58 in QMetaObject::activate (sender=0x9470f90, from_signal_index=22, to_signal_index=22, argv=0xbfc1412c) at kernel/qobject.cpp:3120
#11 0xb7efd6e2 in QMetaObject::activate (sender=0x9470f90, m=0xa84deb74, local_signal_index=1, argv=0xbfc1412c) at kernel/qobject.cpp:3194
#12 0xa84cfd83 in TaskManager::TaskGroup::itemRemoved () from /usr/lib/libtaskmanager.so.4
#13 0xa84d07ab in TaskManager::TaskGroup::remove () from /usr/lib/libtaskmanager.so.4
#14 0xa84b6ba5 in ?? () from /usr/lib/libtaskmanager.so.4
#15 0xa84b946a in TaskManager::GroupManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#16 0xb7efca58 in QMetaObject::activate (sender=0x8f14f38, from_signal_index=5, to_signal_index=5, argv=0xbfc142bc) at kernel/qobject.cpp:3120
#17 0xb7efd6e2 in QMetaObject::activate (sender=0x8f14f38, m=0xa84ded3c, local_signal_index=1, argv=0xbfc142bc) at kernel/qobject.cpp:3194
#18 0xa84d3823 in TaskManager::TaskManager::taskRemoved () from /usr/lib/libtaskmanager.so.4
#19 0xa84d50cf in TaskManager::TaskManager::windowRemoved () from /usr/lib/libtaskmanager.so.4
#20 0xa84d6fec in TaskManager::TaskManager::qt_metacall () from /usr/lib/libtaskmanager.so.4
#21 0xb7efca58 in QMetaObject::activate (sender=0x8cae058, from_signal_index=6, to_signal_index=6, argv=0xbfc1442c) at kernel/qobject.cpp:3120
#22 0xb7efd6e2 in QMetaObject::activate (sender=0x8cae058, m=0xb766f26c, local_signal_index=2, argv=0xbfc1442c) at kernel/qobject.cpp:3194
#23 0xb7607853 in KWindowSystem::windowRemoved (this=0x8cae058, _t1=33555253) at /build/buildd/kde4libs-4.2.95/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0xb760a0d6 in KWindowSystemPrivate::removeClient (this=0x8c73810, w=33555253) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0xb7619753 in NETRootInfo::update (this=0x8c73824, dirty_props=0xbfc14574) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#26 0xb7619b3f in NETRootInfo::event (this=0x8c73824, event=0xbfc15cdc, properties=0xbfc14658, properties_size=5) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0xb760a36d in KWindowSystemPrivate::x11Event (this=0x8c73810, ev=0xbfc15c7c) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0xb74ba6f9 in KApplication::x11EventFilter (this=0x8b0caf8, _event=0xbfc15c7c) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#29 0xb3c07e37 in ?? () from /usr/lib/libkdeinit4_plasma-desktop.so
#30 0xb69e4c5e in qt_x11EventFilter (ev=0xbfc15c7c) at kernel/qapplication_x11.cpp:375
#31 0xb69f74ee in QApplication::x11ProcessEvent (this=0x8b0caf8, event=0xbfc15c7c) at kernel/qapplication_x11.cpp:3287
#32 0xb6a2406a in x11EventSourceDispatch (s=0x8b40570, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb6534b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb65380eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb6538268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb7f121d8 in QEventDispatcherGlib::processEvents (this=0x8b3ccf8, flags={i = -1077846472}) at kernel/qeventdispatcher_glib.cpp:324
#37 0xb6a23765 in QGuiEventDispatcherGlib::processEvents (this=0x8b3ccf8, flags={i = -1077846424}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb7ee4dda in QEventLoop::processEvents (this=0xbfc15ee0, flags={i = -1077846360}) at kernel/qeventloop.cpp:149
#39 0xb7ee521a in QEventLoop::exec (this=0xbfc15ee0, flags={i = -1077846296}) at kernel/qeventloop.cpp:200
#40 0xb7ee76c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0xb6981a47 in QApplication::exec () at kernel/qapplication.cpp:3526
#42 0xb3bf2510 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804e1c0 in launch (argc=1, _name=0x8b110dc "/usr/bin/plasma-desktop", args=0x8b110f4 "", cwd=0x0, envc=0, envs=0x8b110f8 "", 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=0xbfc166d4, envp=0xbfc166e0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi