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: 4.5.2
Operating System: Linux 2.6.29.5-191.fc11.i686.PAE i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
I only was browsing in firefox, only app open at this time, and after 20 minutes plasma crashed by itself.
btw the machine was awakened from suspend from disk, 20 minutes before.

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb8051780 (LWP 1955))]

Thread 2 (Thread 0xabf6cb70 (LWP 1958)):
#0  0x002e4424 in __kernel_vsyscall ()
#1  0x00119fa5 in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:122
#2  0x00371ae7 in QWaitConditionPrivate::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:87
#3  QWaitCondition::wait (time=<value optimized out>, this=<value optimized out>) at thread/qwaitcondition_unix.cpp:159
#4  0x005cd612 in QHostInfoAgent::run (this=0xa2b8cc0) at kernel/qhostinfo.cpp:260
#5  0x00370ab2 in QThreadPrivate::start (arg=0xa2b8cc0) at thread/qthread_unix.cpp:188
#6  0x00115935 in start_thread (arg=0xabf6cb70) at pthread_create.c:297
#7  0x0697082e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb8051780 (LWP 1955)):
[KCrash Handler]
#6  TaskManager::GroupManager::manualSortingRequest (this=0x0, taskItem=0xac1c028, newIndex=0) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:363
#7  0x078a4194 in TaskManager::AbstractGroupingStrategy::closeGroup (this=0xabed928, group=0xa32dc38) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/abstractgroupingstrategy.cpp:167
#8  0x078aba5d in TaskManager::ProgramGroupingStrategy::checkGroup (this=0xabed928) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/strategies/programgroupingstrategy.cpp:204
#9  0x078ac701 in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0xabed928, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfde6868)
    at /usr/src/debug/kdebase-workspace-4.2.95/i586-redhat-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:68
#10 0x00476c53 in QMetaObject::activate (sender=0xa32dc38, from_signal_index=22, to_signal_index=22, argv=0xbfde6868) at kernel/qobject.cpp:3113
#11 0x004778b2 in QMetaObject::activate (sender=0xa32dc38, m=0x78d43f4, local_signal_index=1, argv=0xbfde6868) at kernel/qobject.cpp:3187
#12 0x078bf353 in TaskManager::TaskGroup::itemRemoved (this=0xa32dc38, _t1=0xab9ef98) at /usr/src/debug/kdebase-workspace-4.2.95/i586-redhat-linux-gnu/libs/taskmanager/taskgroup.moc:146
#13 0x078bfb7b in TaskManager::TaskGroup::remove (this=0xa32dc38, item=0xab9ef98) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/taskgroup.cpp:182
#14 0x078a6c15 in TaskManager::GroupManagerPrivate::removeTask (this=0xa2ddb88, task={d = 0xac625d8}) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/groupmanager.cpp:311
#15 0x078a925b in TaskManager::GroupManager::qt_metacall (this=0xa2cfbb8, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfde6a38)
    at /usr/src/debug/kdebase-workspace-4.2.95/i586-redhat-linux-gnu/libs/taskmanager/groupmanager.moc:105
#16 0x00476c53 in QMetaObject::activate (sender=0xa1f9b28, from_signal_index=5, to_signal_index=5, argv=0xbfde6a38) at kernel/qobject.cpp:3113
#17 0x004778b2 in QMetaObject::activate (sender=0xa1f9b28, m=0x78d45bc, local_signal_index=1, argv=0xbfde6a38) at kernel/qobject.cpp:3187
#18 0x078c2d13 in TaskManager::TaskManager::taskRemoved (this=0xa1f9b28, _t1={d = 0xac625d8}) at /usr/src/debug/kdebase-workspace-4.2.95/i586-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:162
#19 0x078c4a46 in TaskManager::TaskManager::windowRemoved (this=0xa1f9b28, w=27270239) at /usr/src/debug/kdebase-workspace-4.2.95/libs/taskmanager/taskmanager.cpp:278
#20 0x078c63cf in TaskManager::TaskManager::qt_metacall (this=0xa1f9b28, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0xbfde6bc8)
    at /usr/src/debug/kdebase-workspace-4.2.95/i586-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:110
#21 0x00476c53 in QMetaObject::activate (sender=0x9fa78a0, from_signal_index=6, to_signal_index=6, argv=0xbfde6bc8) at kernel/qobject.cpp:3113
#22 0x004778b2 in QMetaObject::activate (sender=0x9fa78a0, m=0x12a586c, local_signal_index=2, argv=0xbfde6bc8) at kernel/qobject.cpp:3187
#23 0x011f2a23 in KWindowSystem::windowRemoved (this=0x9fa78a0, _t1=27270239) at /usr/src/debug/kdelibs-4.2.95/i586-redhat-linux-gnu/kdeui/kwindowsystem.moc:127
#24 0x011f5c86 in KWindowSystemPrivate::removeClient (this=0x9ef0220, w=27270239) at /usr/src/debug/kdelibs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:249
#25 0x012048d5 in NETRootInfo::update (this=<value optimized out>, dirty_props=0xbfde6d38) at /usr/src/debug/kdelibs-4.2.95/kdeui/windowmanagement/netwm.cpp:2135
#26 0x01204c07 in NETRootInfo::event (this=0x9ef0234, event=<value optimized out>, properties=0xbfde6e24, properties_size=5) at /usr/src/debug/kdelibs-4.2.95/kdeui/windowmanagement/netwm.cpp:2058
#27 0x011f5f21 in KWindowSystemPrivate::x11Event (this=0x9ef0220, ev=0xbfde842c) at /usr/src/debug/kdelibs-4.2.95/kdeui/windowmanagement/kwindowsystem_x11.cpp:136
#28 0x010a2c96 in KAppX11HackWidget::publicx11Event (e=<value optimized out>, this=<value optimized out>) at /usr/src/debug/kdelibs-4.2.95/kdeui/kernel/kapplication.cpp:900
#29 KApplication::x11EventFilter (e=<value optimized out>, this=<value optimized out>) at /usr/src/debug/kdelibs-4.2.95/kdeui/kernel/kapplication.cpp:950
#30 0x01b0b04a in PlasmaApp::x11EventFilter (this=0x9d2a1b8, event=0xbfde842c) at /usr/src/debug/kdebase-workspace-4.2.95/plasma/shells/desktop/plasmaapp.cpp:490
#31 0x034392a0 in qt_x11EventFilter (ev=0xbfde842c) at kernel/qapplication_x11.cpp:375
#32 0x0344a5b5 in QApplication::x11ProcessEvent (this=0x9d2a1b8, event=0xbfde842c) at kernel/qapplication_x11.cpp:3271
#33 0x03476f62 in x11EventSourceDispatch (s=0x9d3f968, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#34 0x07958d78 in g_main_dispatch (context=<value optimized out>) at gmain.c:1814
#35 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2367
#36 0x0795c310 in g_main_context_iterate (context=0x9d3ee90, block=<value optimized out>, dispatch=1, self=0x9d3c880) at gmain.c:2445
#37 0x0795c443 in IA__g_main_context_iteration (context=0x9d3ee90, may_block=1) at gmain.c:2508
#38 0x0048b9bc in QEventDispatcherGlib::processEvents (this=0x9d3cb68, flags={i = 36}) at kernel/qeventdispatcher_glib.cpp:327
#39 0x03476645 in QGuiEventDispatcherGlib::processEvents (this=0x9d3cb68, flags={i = 36}) at kernel/qguieventdispatcher_glib.cpp:202
#40 0x0045f519 in QEventLoop::processEvents (this=0xbfde8724, flags={i = 36}) at kernel/qeventloop.cpp:149
#41 0x0045f96a in QEventLoop::exec (this=0xbfde8724, flags={i = 0}) at kernel/qeventloop.cpp:201
#42 0x00461ddf in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#43 0x033d7437 in QApplication::exec () at kernel/qapplication.cpp:3525
#44 0x01af51dd in kdemain (argc=1, argv=0x9d08610) at /usr/src/debug/kdebase-workspace-4.2.95/plasma/shells/desktop/main.cpp:50
#45 0x0804d8c2 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x9cde758 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x8050c6d "0") at /usr/src/debug/kdelibs-4.2.95/kinit/kinit.cpp:672
#46 0x0804e4c5 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at /usr/src/debug/kdelibs-4.2.95/kinit/kinit.cpp:1164
#47 0x0804e93c in handle_requests (waitForPid=<value optimized out>) at /usr/src/debug/kdelibs-4.2.95/kinit/kinit.cpp:1357
#48 0x0804f63f in main (argc=2, argv=0xbfde8f84, envp=0xbfde8f90) at /usr/src/debug/kdelibs-4.2.95/kinit/kinit.cpp:1784

This bug may be a duplicate of or related to bug 198471

Reported using DrKonqi