Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.88 (KDE 4.2.88 (KDE 4.3 >= 20090527)) "release 135"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.21-0.1-pae i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
Exited google earth. Then came the crash. (Desktop effects are not enabled here.)

This also happened earlier today upon closing a Seamonkey window (but not quitting the application). (Then desktop effects were enabled.)

 -- Backtrace:
Application: Plasma Workspace (kdeinit), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5fb9700 (LWP 17925))]

Thread 2 (Thread 0xa839cb90 (LWP 17931)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7e63c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7ec3722 in QWaitCondition::wait (this=0x8572b90, mutex=0x8572b8c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  0xb773cae2 in QHostInfoAgent::run (this=0x8572b80) at kernel/qhostinfo.cpp:260
#4  0xb7ec270e in QThreadPrivate::start (arg=0x8572b80) at thread/qthread_unix.cpp:189
#5  0xb7e601b5 in start_thread () from /lib/libpthread.so.0
#6  0xb667f3be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb5fb9700 (LWP 17925)):
[KCrash Handler]
#6  0xa8477fde in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x87c5c58, group=0x8833b38)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/abstractgroupingstrategy.cpp:140
#7  0xa847f9f7 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x87c5c58) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/strategies/programgroupingstrategy.cpp:193
#8  0xa848069b in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x87c5c58, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbf9f751c)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/programgroupingstrategy.moc:68
#9  0xb7fccdc8 in QMetaObject::activate (sender=0x8833b38, from_signal_index=22, to_signal_index=22, argv=0xbf9f751c) at kernel/qobject.cpp:3120
#10 0xb7fce552 in QMetaObject::activate (sender=0x8833b38, m=0xa84a8b74, local_signal_index=1, argv=0xbf9f751c) at kernel/qobject.cpp:3194
#11 0xa84937a3 in TaskManager::TaskGroup::itemRemoved (this=0x8833b38, _t1=0x879fa18) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskgroup.moc:143
#12 0xa8493df0 in TaskManager::TaskGroup::remove (this=0x8833b38, item=0x879fa18) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/taskgroup.cpp:174
#13 0xa847ac55 in TaskManager::GroupManagerPrivate::removeTask (this=0x855f060, task={d = 0xbf9f75bc}) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/groupmanager.cpp:296
#14 0xa847cdaa in TaskManager::GroupManager::qt_metacall (this=0x8401f00, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbf9f769c)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/groupmanager.moc:103
#15 0xb7fccdc8 in QMetaObject::activate (sender=0x858bc10, from_signal_index=5, to_signal_index=5, argv=0xbf9f769c) at kernel/qobject.cpp:3120
#16 0xb7fce552 in QMetaObject::activate (sender=0x858bc10, m=0xa84a8d3c, local_signal_index=1, argv=0xbf9f769c) at kernel/qobject.cpp:3194
#17 0xa8496fb3 in TaskManager::TaskManager::taskRemoved (this=0x858bc10, _t1={d = 0xbf9f76e4}) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskmanager.moc:159
#18 0xa84986e7 in TaskManager::TaskManager::windowRemoved (this=0x858bc10, w=58720260) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/taskmanager.cpp:265
#19 0xa849a534 in TaskManager::TaskManager::qt_metacall (this=0x858bc10, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbf9f780c)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskmanager.moc:108
#20 0xb7fccdc8 in QMetaObject::activate (sender=0x829ee90, from_signal_index=6, to_signal_index=6, argv=0xbf9f780c) at kernel/qobject.cpp:3120
#21 0xb7fce552 in QMetaObject::activate (sender=0x829ee90, m=0xb767424c, local_signal_index=2, argv=0xbf9f780c) at kernel/qobject.cpp:3194
#22 0xb75c0013 in KWindowSystem::windowRemoved (this=0x829ee90, _t1=58720260) at /usr/src/debug/kdelibs-4.2.88svn973768/build/kdeui/kwindowsystem.moc:127
#23 0xb75c2836 in KWindowSystemPrivate::removeClient (this=0x82eddd8, w=58720260) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#24 0xb75d1d23 in NETRootInfo::update (this=0x82eddec, dirty_props=0xbf9f7954) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/netwm.cpp:2130
#25 0xb75d210f in NETRootInfo::event (this=0x82eddec, event=0xbf9f90bc, properties=0xbf9f7a38, properties_size=5) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/netwm.cpp:2053
#26 0xb75c2acd in KWindowSystemPrivate::x11Event (this=0x82eddd8, ev=0xbf9f905c) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#27 0xb7473eb9 in KApplication::x11EventFilter (this=0x80b6578, _event=0xbf9f905c) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/kernel/kapplication.cpp:900
#28 0xb3ac1ea7 in PlasmaApp::x11EventFilter (this=0x80b6578, event=0xbf9f905c) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/plasma/shells/desktop/plasmaapp.cpp:438
#29 0xb69b968e in qt_x11EventFilter (ev=0xbf9f905c) at kernel/qapplication_x11.cpp:375
#30 0xb69cbf1e in QApplication::x11ProcessEvent (this=0x80b6578, event=0xbf9f905c) at kernel/qapplication_x11.cpp:3285
#31 0xb69f727a in x11EventSourceDispatch (s=0x80bef98, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#32 0xb64fc9c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#33 0xb6500083 in ?? () from /usr/lib/libglib-2.0.so.0
#34 0xb6500241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#35 0xb7fe2558 in QEventDispatcherGlib::processEvents (this=0x80b9c58, flags={i = -1080061416}) at kernel/qeventdispatcher_glib.cpp:324
#36 0xb69f6975 in QGuiEventDispatcherGlib::processEvents (this=0x80b9c58, flags={i = -1080061368}) at kernel/qguieventdispatcher_glib.cpp:202
#37 0xb7fb50fa in QEventLoop::processEvents (this=0xbf9f92c0, flags={i = -1080061304}) at kernel/qeventloop.cpp:149
#38 0xb7fb553a in QEventLoop::exec (this=0xbf9f92c0, flags={i = -1080061240}) at kernel/qeventloop.cpp:200
#39 0xb7fb79e9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#40 0xb6956517 in QApplication::exec () at kernel/qapplication.cpp:3526
#41 0xb3aac760 in kdemain (argc=1, argv=0x809edd8) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/plasma/shells/desktop/main.cpp:50
#42 0x0804e2b0 in launch (argc=1, _name=0x809e504 "/usr/bin/plasma-desktop", args=0x809e51c "", cwd=0x0, envc=0, envs=0x809e520 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8051390 "0") at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:671
#43 0x0804ea8d in handle_launcher_request (sock=7, who=<value optimized out>) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1163
#44 0x0804ef23 in handle_requests (waitForPid=0) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1356
#45 0x0804fbca in main (argc=2, argv=0xbf9f9aa4, envp=0xbf9f9ab0) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1783

Reported using DrKonqi