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 127"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.21-0.1-default x86_64
Distribution: "openSUSE 11.1 (x86_64)"

What I was doing when the application crashed:
I clicked on an application group in panel to unfold a grouped windows list and Plasma crashed.

 -- Backtrace:
Application: Przestrzeń robocza Plazmy (kdeinit), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0953f20760 (LWP 4904))]

Thread 2 (Thread 0x7f0934463950 (LWP 4916)):
#0  0x00007f09536f9d59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f095396aed9 in QWaitCondition::wait (this=0xb79520, mutex=0xb79518, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f09525a15ec in QHostInfoAgent::run (this=0xb79500) at kernel/qhostinfo.cpp:260
#3  0x00007f0953969f22 in QThreadPrivate::start (arg=0xb79500) at thread/qthread_unix.cpp:189
#4  0x00007f09536f6070 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f095022910d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0953f20760 (LWP 4904)):
[KCrash Handler]
#5  TaskManager::GroupManager::manualSortingRequest (this=0x1cd00000000004d, taskItem=0x103f930, newIndex=0) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/groupmanager.cpp:346
#6  0x00007f09374df814 in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x11ea740, group=0xedb2b0)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/abstractgroupingstrategy.cpp:140
#7  0x00007f09374e6918 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x11ea740)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/strategies/programgroupingstrategy.cpp:193
#8  0x00007f09374e74fd in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x11ea740, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/programgroupingstrategy.moc:68
#9  0x00007f0953a68c22 in QMetaObject::activate (sender=0xedb2b0, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x1) at kernel/qobject.cpp:3120
#10 0x00007f09374f85e2 in TaskManager::TaskGroup::itemRemoved (this=0x1cd00000000004d, _t1=0x1dd19c0) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskgroup.moc:143
#11 0x00007f09374e1fc2 in TaskManager::GroupManagerPrivate::removeTask (this=0xccdc50, task={d = 0x7fff5bf62b90})
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/groupmanager.cpp:296
#12 0x00007f09374e3f5d in TaskManager::GroupManager::qt_metacall (this=0x91aac0, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fff5bf62cd0)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/groupmanager.moc:103
#13 0x00007f0953a68c22 in QMetaObject::activate (sender=0xb81940, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x1) at kernel/qobject.cpp:3120
#14 0x00007f09374fb855 in TaskManager::TaskManager::taskRemoved (this=0x1cd00000000004d, _t1=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskmanager.moc:159
#15 0x00007f09374fcd0e in TaskManager::TaskManager::windowRemoved (this=0xb81940, w=62914571) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/libs/taskmanager/taskmanager.cpp:265
#16 0x00007f09374fea0f in TaskManager::TaskManager::qt_metacall (this=0xb81940, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff5bf62ef0)
    at /usr/src/debug/kdebase-workspace-4.2.88svn973768/build/libs/taskmanager/taskmanager.moc:108
#17 0x00007f0953a68c22 in QMetaObject::activate (sender=0x8cadd0, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x1) at kernel/qobject.cpp:3120
#18 0x00007f095200a762 in KWindowSystem::windowRemoved (this=0x1cd00000000004d, _t1=62914571) at /usr/src/debug/kdelibs-4.2.88svn973768/build/kdeui/kwindowsystem.moc:127
#19 0x00007f095200cc5b in KWindowSystemPrivate::removeClient (this=0x9199e0, w=62914571) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#20 0x00007f095201ba91 in NETRootInfo::update (this=0x919a08, dirty_props=<value optimized out>) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/netwm.cpp:2130
#21 0x00007f095201be1b in NETRootInfo::event (this=0x919a08, event=<value optimized out>, properties=0x7fff5bf631e0, properties_size=5)
    at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/netwm.cpp:2053
#22 0x00007f095200cf2b in KWindowSystemPrivate::x11Event (this=0x9199e0, ev=0x7fff5bf64c10) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#23 0x00007f0951edd463 in KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff5bf64c10) at /usr/src/debug/kdelibs-4.2.88svn973768/kdeui/kernel/kapplication.cpp:900
#24 0x00007f094814eaa7 in PlasmaApp::x11EventFilter (this=0x679010, event=0x7fff5bf64c10) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/plasma/shells/desktop/plasmaapp.cpp:438
#25 0x00007f0950e259af in qt_x11EventFilter (ev=0x7fff5bf64c10) at kernel/qapplication_x11.cpp:375
#26 0x00007f0950e38ea4 in QApplication::x11ProcessEvent (this=0x679010, event=0x7fff5bf64c10) at kernel/qapplication_x11.cpp:3285
#27 0x00007f0950e61384 in x11EventSourceDispatch (s=0x685890, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#28 0x00007f094f8a70fb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#29 0x00007f094f8aa8cd in ?? () from /usr/lib64/libglib-2.0.so.0
#30 0x00007f094f8aaa8b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#31 0x00007f0953a7c89f in QEventDispatcherGlib::processEvents (this=0x681770, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#32 0x00007f0950e60b0f in QGuiEventDispatcherGlib::processEvents (this=0x1cd00000000004d, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#33 0x00007f0953a519f2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1542868736}) at kernel/qeventloop.cpp:149
#34 0x00007f0953a51dbd in QEventLoop::exec (this=0x7fff5bf64f40, flags={i = 1542868816}) at kernel/qeventloop.cpp:200
#35 0x00007f0953a540a4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#36 0x00007f094813b87b in kdemain (argc=1, argv=0x65dcb0) at /usr/src/debug/kdebase-workspace-4.2.88svn973768/plasma/shells/desktop/main.cpp:50
#37 0x000000000040724e in launch (argc=1, _name=0x62e9f8 "/usr/bin/plasma-desktop", args=<value optimized out>, cwd=0x0, envc=0, envs=0x62ea18 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x40a404 "0") at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:671
#38 0x0000000000407a78 in handle_launcher_request (sock=7, who=<value optimized out>) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1163
#39 0x0000000000408025 in handle_requests (waitForPid=0) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1356
#40 0x0000000000408b66 in main (argc=2, argv=0x7fff5bf65dd8, envp=0x7fff5bf65df0) at /usr/src/debug/kdelibs-4.2.88svn973768/kinit/kinit.cpp:1783

Reported using DrKonqi