Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3)) "release 150"
Qt Version: 4.5.2
Operating System: Linux 2.6.27.25-0.1-default x86_64
Distribution: "openSUSE 11.1 (x86_64)"

What I was doing when the application crashed:
The crashes happen at least once a hour.
I don't know if it is something that I'm running because it happens sporadically and I can't identify the cause.
I'm willing to provide any details that can help, or run plasma-deskop in any other way that can help finding the cause for the crashes.

Thanks,
  Sagi.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f888c742760 (LWP 12211))]

Thread 2 (Thread 0x7f886c09d950 (LWP 12216)):
#0  0x00007f88877d4d59 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f8887a45e19 in QWaitCondition::wait (this=0xd900b0, mutex=0xd900a8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  0x00007f888b1c087c in QHostInfoAgent::run (this=0xd90090) at kernel/qhostinfo.cpp:260
#3  0x00007f8887a44e65 in QThreadPrivate::start (arg=0xd90090) at thread/qthread_unix.cpp:188
#4  0x00007f88877d1070 in start_thread () from /lib64/libpthread.so.0
#5  0x00007f8886dca10d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f888c742760 (LWP 12211)):
[KCrash Handler]
#5  AbstractTaskItem::basicPreferredSize (this=0x1e8baa0) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/tasks.h:92
#6  0x00007f886feb2316 in TaskItemLayout::preferredColumns (this=0xbe0130) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskitemlayout.cpp:206
#7  0x00007f886feb2c6c in TaskItemLayout::gridLayoutSize (this=0xbe0130) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskitemlayout.cpp:222
#8  0x00007f886feb2cfb in TaskItemLayout::layoutItems (this=0x0) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskitemlayout.cpp:245
#9  0x00007f886feb38b4 in TaskItemLayout::insert (this=0xbe0130, index=5, item=0x1f4e5d0) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskitemlayout.cpp:125
#10 0x00007f886feb3a90 in TaskItemLayout::addTaskItem (this=0xbe0130, item=0x1f4e5d0) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskitemlayout.cpp:82
#11 0x00007f886febf528 in TaskGroupItem::itemAdded (this=0xbd7e60, groupableItem=0x1d89d10) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/applets/tasks/taskgroupitem.cpp:477
#12 0x00007f886febfb2c in TaskGroupItem::qt_metacall (this=0xbd7e60, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff6946ff20)
    at /usr/src/debug/kdebase-workspace-4.2.98/build/plasma/applets/tasks/taskgroupitem.moc:113
#13 0x00007f8887b436e2 in QMetaObject::activate (sender=0xbd8130, from_signal_index=<value optimized out>, to_signal_index=21, argv=0x0) at kernel/qobject.cpp:3113
#14 0x00007f88702faf4f in TaskManager::TaskGroup::itemAdded (this=0x0, _t1=0x1d89d10) at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/taskgroup.moc:139
#15 0x00007f88702fba9b in TaskManager::TaskGroup::add (this=0xbd8130, item=0x1d89d10) at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/taskgroup.cpp:138
#16 0x00007f88702e4212 in TaskManager::GroupManagerPrivate::addTask (this=0xa73e90, task={d = 0x7fff69470030}) at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/groupmanager.cpp:290
#17 0x00007f88702e5f5f in TaskManager::GroupManagerPrivate::taskChanged (this=0xa73e90, task={d = 0x7fff694700c0}, changes={i = 1766260944})
    at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/groupmanager.cpp:441
#18 0x00007f88702e661c in TaskManager::GroupManager::qt_metacall (this=0xa6f990, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fff694701e0)
    at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/groupmanager.moc:98
#19 0x00007f8887b436e2 in QMetaObject::activate (sender=0xb95580, from_signal_index=<value optimized out>, to_signal_index=9, argv=0x0) at kernel/qobject.cpp:3113
#20 0x00007f88702fe2da in TaskManager::TaskManager::windowChanged (this=0x0, _t1=<value optimized out>, _t2=<value optimized out>)
    at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/taskmanager.moc:190
#21 0x00007f88703012c7 in TaskManager::TaskManager::taskChanged (this=0xb95580, changes=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/taskmanager.cpp:349
#22 0x00007f8870301537 in TaskManager::TaskManager::qt_metacall (this=0xb95580, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff69470420)
    at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/taskmanager.moc:118
#23 0x00007f8887b436e2 in QMetaObject::activate (sender=0x1b67df0, from_signal_index=<value optimized out>, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#24 0x00007f88702f18b2 in TaskManager::Task::changed (this=0x0, _t1=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/task.moc:211
#25 0x00007f88702f55c7 in TaskManager::Task::refresh (this=0x1b67df0, dirty=0) at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/task.cpp:207
#26 0x00007f887030082a in TaskManager::TaskManager::windowChanged (this=0xb95580, w=12642192, dirty=524288) at /usr/src/debug/kdebase-workspace-4.2.98/libs/taskmanager/taskmanager.cpp:337
#27 0x00007f8870301735 in TaskManager::TaskManager::qt_metacall (this=0xb95580, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff69470750)
    at /usr/src/debug/kdebase-workspace-4.2.98/build/libs/taskmanager/taskmanager.moc:111
#28 0x00007f8887b436e2 in QMetaObject::activate (sender=0x81aa50, from_signal_index=<value optimized out>, to_signal_index=14, argv=0x0) at kernel/qobject.cpp:3113
#29 0x00007f888ac2aa30 in KWindowSystem::windowChanged(unsigned long, unsigned int) () from /usr/lib64/libkdeui.so.5
#30 0x00007f888ac2d23d in ?? () from /usr/lib64/libkdeui.so.5
#31 0x00007f888aafdb33 in KApplication::x11EventFilter(_XEvent*) () from /usr/lib64/libkdeui.so.5
#32 0x00007f888c4c5197 in PlasmaApp::x11EventFilter (this=0x621200, event=0x7fff694721c0) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/shells/desktop/plasmaapp.cpp:490
#33 0x00007f888828ed7f in qt_x11EventFilter (ev=0x7fff694721c0) at kernel/qapplication_x11.cpp:375
#34 0x00007f88882a2274 in QApplication::x11ProcessEvent (this=0x621200, event=0x7fff694721c0) at kernel/qapplication_x11.cpp:3264
#35 0x00007f88882ca874 in x11EventSourceDispatch (s=0x63fdf0, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#36 0x00007f8883b4c0fb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#37 0x00007f8883b4f8cd in ?? () from /usr/lib64/libglib-2.0.so.0
#38 0x00007f8883b4fa8b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#39 0x00007f8887b57d3f in QEventDispatcherGlib::processEvents (this=0x608fd0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#40 0x00007f88882c9fff in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#41 0x00007f8887b2d1d2 in QEventLoop::processEvents (this=<value optimized out>, flags={i = 1766270128}) at kernel/qeventloop.cpp:149
#42 0x00007f8887b2d5a4 in QEventLoop::exec (this=0x7fff694724f0, flags={i = 1766270208}) at kernel/qeventloop.cpp:201
#43 0x00007f8887b2f894 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#44 0x00007f888c4b1aeb in kdemain (argc=1, argv=0x7fff694727f8) at /usr/src/debug/kdebase-workspace-4.2.98/plasma/shells/desktop/main.cpp:50
#45 0x00007f8886d15586 in __libc_start_main () from /lib64/libc.so.6
#46 0x0000000000400819 in _start () at ../sysdeps/x86_64/elf/start.S:113

Reported using DrKonqi