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 2.6.30-10-generic x86_64
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Przestrzeń robocza Plazmy (plasma-desktop), signal: Segmentation fault
[Current thread is 0 (LWP 6098)]

Thread 2 (Thread 0x7f79b63b1950 (LWP 6101)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007f79d47cdce9 in QWaitCondition::wait (this=0x1249f10, mutex=0x1249f08, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f79d7d4f5dc in QHostInfoAgent::run (this=0x1249ef0) at kernel/qhostinfo.cpp:260
#3  0x00007f79d47ccd02 in QThreadPrivate::start (arg=0x1249ef0) at thread/qthread_unix.cpp:189
#4  0x00007f79d0ee23ba in start_thread (arg=<value optimized out>) at pthread_create.c:297
#5  0x00007f79d3d37fcd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f79d9448760 (LWP 6098)):
[KCrash Handler]
#5  TaskManager::GroupManager::manualSortingRequest (this=0x0, taskItem=0x16314c0, newIndex=0) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:363
#6  0x00007f79bacb0b3a in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x1becc70, group=0x1b29780)
    at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/abstractgroupingstrategy.cpp:167
#7  0x00007f79bacb7da8 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x1becc70) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/strategies/programgroupingstrategy.cpp:204
#8  0x00007f79bacb8c2d in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x1becc70, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:68
#9  0x00007f79d48cb8d2 in QMetaObject::activate (sender=0x1b29780, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x1) at kernel/qobject.cpp:3120
#10 0x00007f79bacc9a92 in TaskManager::TaskGroup::itemRemoved (this=0x0, _t1=0x1961a90) at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/taskmanager/taskgroup.moc:146
#11 0x00007f79bacca3b1 in TaskManager::TaskGroup::remove (this=0x1b29780, item=0x1961a90) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/taskgroup.cpp:182
#12 0x00007f79bacb2ed1 in TaskManager::GroupManagerPrivate::removeTask (this=0xff6e60, task={d = 0x7ffff61edf50}) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:311
#13 0x00007f79bacb551d in TaskManager::GroupManager::qt_metacall (this=0xff3e80, _c=<value optimized out>, _id=<value optimized out>, _a=0x7ffff61ee090)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/taskmanager/groupmanager.moc:105
#14 0x00007f79d48cb8d2 in QMetaObject::activate (sender=0xff7040, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x1) at kernel/qobject.cpp:3120
#15 0x00007f79bacccf35 in TaskManager::TaskManager::taskRemoved (this=0x0, _t1=<value optimized out>)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/taskmanager/taskmanager.moc:162
#16 0x00007f79bacce56e in TaskManager::TaskManager::windowRemoved (this=0xff7040, w=14680200) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/taskmanager.cpp:279
#17 0x00007f79bacd02bf in TaskManager::TaskManager::qt_metacall (this=0xff7040, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7ffff61ee2b0)
    at /build/buildd/kdebase-workspace-4.2.95/obj-x86_64-linux-gnu/libs/taskmanager/taskmanager.moc:110
#18 0x00007f79d48cb8d2 in QMetaObject::activate (sender=0xb1fd70, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x1) at kernel/qobject.cpp:3120
#19 0x00007f79d77b8ab2 in KWindowSystem::windowRemoved (this=0x0, _t1=14680200) at /build/buildd/kde4libs-4.2.95/obj-x86_64-linux-gnu/kdeui/kwindowsystem.moc:127
#20 0x00007f79d77baffb in KWindowSystemPrivate::removeClient (this=0xab2050, w=14680200) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#21 0x00007f79d77c9fe1 in NETRootInfo::update (this=0xab2078, dirty_props=<value optimized out>) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#22 0x00007f79d77ca36b in NETRootInfo::event (this=0xab2078, event=<value optimized out>, properties=0x7ffff61ee5a0, properties_size=5)
    at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#23 0x00007f79d77bb2cb in KWindowSystemPrivate::x11Event (this=0xab2050, ev=0x7ffff61effd0) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#24 0x00007f79d768aa43 in KApplication::x11EventFilter (this=<value optimized out>, _event=0x7ffff61effd0) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#25 0x00007f79d9033b57 in PlasmaApp::x11EventFilter (this=0x745b20, event=0x7ffff61effd0) at /build/buildd/kdebase-workspace-4.2.95/plasma/shells/desktop/plasmaapp.cpp:490
#26 0x00007f79d501bfdf in qt_x11EventFilter (ev=0x7ffff61effd0) at kernel/qapplication_x11.cpp:375
#27 0x00007f79d502f4e4 in QApplication::x11ProcessEvent (this=0x745b20, event=0x7ffff61effd0) at kernel/qapplication_x11.cpp:3287
#28 0x00007f79d5058f84 in x11EventSourceDispatch (s=0x75c720, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#29 0x00007f79cf2b220a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0x00007f79cf2b58e0 in ?? () from /usr/lib/libglib-2.0.so.0
#31 0x00007f79cf2b5a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#32 0x00007f79d48df52f in QEventDispatcherGlib::processEvents (this=0x72d5f0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#33 0x00007f79d505870f in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#34 0x00007f79d48b46a2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -165739840}) at kernel/qeventloop.cpp:149
#35 0x00007f79d48b4a6d in QEventLoop::exec (this=0x7ffff61f0300, flags={i = -165739760}) at kernel/qeventloop.cpp:200
#36 0x00007f79d48b6d34 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#37 0x00007f79d902063b in kdemain (argc=1, argv=0x7ffff61f0608) at /build/buildd/kdebase-workspace-4.2.95/plasma/shells/desktop/main.cpp:50
#38 0x00007f79d3c705a6 in __libc_start_main (main=0x400890 <main>, argc=1, ubp_av=0x7ffff61f0608, init=0x4008c0 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7ffff61f05f8) at libc-start.c:220
#39 0x00000000004007c9 in _start () at ../sysdeps/x86_64/elf/start.S:113

Reported using DrKonqi