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: 4.5.0
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Working with Sound Juicer, opening the F1 Help, desktop crashes

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 0 (LWP 3456)]

Thread 2 (Thread 0xa9040b90 (LWP 3466)):
#0  0xb7f90430 in __kernel_vsyscall ()
#1  0xb645f0e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb663f2ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb7d929b2 in QWaitCondition::wait (this=0xa1c82d8, mutex=0xa1c82d4, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  0xb76ce152 in QHostInfoAgent::run (this=0xa1c82c8) at kernel/qhostinfo.cpp:260
#5  0xb7d9196e in QThreadPrivate::start (arg=0xa1c82c8) at thread/qthread_unix.cpp:189
#6  0xb645b4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb663049e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5f69a10 (LWP 3456)):
[KCrash Handler]
#6  TaskManager::GroupManager::manualSortingRequest (this=0x0, taskItem=0xa4d8ae8, newIndex=1) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:363
#7  0xa94a031b in TaskManager::AbstractGroupingStrategy::closeGroup (this=0xa47c998, group=0xa437db0) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/abstractgroupingstrategy.cpp:167
#8  0xa94a7f27 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0xa47c998) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/strategies/programgroupingstrategy.cpp:204
#9  0xa94a8e5b in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0xa47c998, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfdab25c)
    at /build/buildd/kdebase-workspace-4.2.95/obj-i486-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:68
#10 0xb7e9bca8 in QMetaObject::activate (sender=0xa437db0, from_signal_index=22, to_signal_index=22, argv=0xbfdab25c) at kernel/qobject.cpp:3069
#11 0xb7e9c932 in QMetaObject::activate (sender=0xa437db0, m=0xa94cab74, local_signal_index=1, argv=0xbfdab25c) at kernel/qobject.cpp:3143
#12 0xa94bbd83 in TaskManager::TaskGroup::itemRemoved (this=0xa437db0, _t1=0xa074de8) at /build/buildd/kdebase-workspace-4.2.95/obj-i486-linux-gnu/libs/taskmanager/taskgroup.moc:146
#13 0xa94bc7ab in TaskManager::TaskGroup::remove (this=0xa437db0, item=0xa074de8) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/taskgroup.cpp:182
#14 0xa94a2ba5 in TaskManager::GroupManagerPrivate::removeTask (this=0xa0a2760, task={d = 0xbfdab30c}) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:311
#15 0xa94a546a in TaskManager::GroupManager::qt_metacall (this=0x9e648e0, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfdab3ec)
    at /build/buildd/kdebase-workspace-4.2.95/obj-i486-linux-gnu/libs/taskmanager/groupmanager.moc:105
#16 0xb7e9bca8 in QMetaObject::activate (sender=0xa09f878, from_signal_index=5, to_signal_index=5, argv=0xbfdab3ec) at kernel/qobject.cpp:3069
#17 0xb7e9c932 in QMetaObject::activate (sender=0xa09f878, m=0xa94cad3c, local_signal_index=1, argv=0xbfdab3ec) at kernel/qobject.cpp:3143
#18 0xa94bf823 in TaskManager::TaskManager::taskRemoved (this=0xa09f878, _t1={d = 0xbfdab434}) at /build/buildd/kdebase-workspace-4.2.95/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:162
#19 0xa94c10cf in TaskManager::TaskManager::windowRemoved (this=0xa09f878, w=52429377) at /build/buildd/kdebase-workspace-4.2.95/libs/taskmanager/taskmanager.cpp:279
#20 0xa94c2fec in TaskManager::TaskManager::qt_metacall (this=0xa09f878, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfdab55c)
    at /build/buildd/kdebase-workspace-4.2.95/obj-i486-linux-gnu/libs/taskmanager/taskmanager.moc:110
#21 0xb7e9bca8 in QMetaObject::activate (sender=0x9add5d8, from_signal_index=6, to_signal_index=6, argv=0xbfdab55c) at kernel/qobject.cpp:3069
#22 0xb7e9c932 in QMetaObject::activate (sender=0x9add5d8, m=0xb760426c, local_signal_index=2, argv=0xbfdab55c) at kernel/qobject.cpp:3143
#23 0xb759c853 in KWindowSystem::windowRemoved (this=0x9add5d8, _t1=52429377) at /build/buildd/kde4libs-4.2.95/obj-i486-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0xb759f0d6 in KWindowSystemPrivate::removeClient (this=0x9b1f990, w=52429377) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0xb75ae7c2 in NETRootInfo::update (this=0x9b1f9a4, dirty_props=0xbfdab6a4) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2131
#26 0xb75aeb3f in NETRootInfo::event (this=0x9b1f9a4, event=0xbfdabdbc, properties=0xbfdab788, properties_size=5) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0xb759f36d in KWindowSystemPrivate::x11Event (this=0x9b1f990, ev=0xbfdabd5c) at /build/buildd/kde4libs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0xb744f6f9 in KApplication::x11EventFilter (this=0x99a5898, _event=0xbfdabd5c) at /build/buildd/kde4libs-4.2.95/kdeui/kernel/kapplication.cpp:911
#29 0xb4ad6e37 in PlasmaApp::x11EventFilter (this=0x99a5898, event=0xbfdabd5c) at /build/buildd/kdebase-workspace-4.2.95/plasma/shells/desktop/plasmaapp.cpp:490
#30 0xb6978f3e in qt_x11EventFilter (ev=0xbfdabd5c) at kernel/qapplication_x11.cpp:375
#31 0xb698b6a8 in QApplication::x11ProcessEvent (this=0x99a5898, event=0xbfdabd5c) at kernel/qapplication_x11.cpp:3273
#32 0xb69b7c6a in x11EventSourceDispatch (s=0x99cbc70, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#33 0xb64a8b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0xb64ac0eb in ?? () from /usr/lib/libglib-2.0.so.0
#35 0xb64ac268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0xb7eb1438 in QEventDispatcherGlib::processEvents (this=0x99c66c0, flags={i = -1076183272}) at kernel/qeventdispatcher_glib.cpp:323
#37 0xb69b7365 in QGuiEventDispatcherGlib::processEvents (this=0x99c66c0, flags={i = -1076183224}) at kernel/qguieventdispatcher_glib.cpp:202
#38 0xb7e8406a in QEventLoop::processEvents (this=0xbfdabfc0, flags={i = -1076183160}) at kernel/qeventloop.cpp:149
#39 0xb7e844aa in QEventLoop::exec (this=0xbfdabfc0, flags={i = -1076183096}) at kernel/qeventloop.cpp:200
#40 0xb7e86959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#41 0xb6915d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#42 0xb4ac1510 in kdemain (argc=1, argv=0x9990bc8) at /build/buildd/kdebase-workspace-4.2.95/plasma/shells/desktop/main.cpp:50
#43 0x0804e1c0 in launch (argc=1, _name=0x99b01b4 "/usr/bin/plasma-desktop", args=0x99b01cc "", cwd=0x0, envc=0, envs=0x99b01d0 "", 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=0xbfdac7b4, envp=0xbfdac7c0) at /build/buildd/kde4libs-4.2.95/kinit/kinit.cpp:1784

Reported using DrKonqi