Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1)) "release 2.1"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.21-0.1-pae i686

What I was doing when the application crashed:
While starting various programs at once and hovering over the entries in the task bar, plasma-desktop crashes. Noticed this various times already.

openSUSE 11.1
KDE Version 4.2.85 from KDE4 UNSTABLE repo
Qt 4.5.1 from KDE Qt repo

BTW: Congrats for this nice new crash reporting assistant

 -- Backtrace:
Application: Plasma-Arbeitsfläche (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb497f700 (LWP 5813))]

Thread 2 (Thread 0xa8dc9b90 (LWP 5820)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb6268c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb62c8722 in QWaitCondition::wait (this=0x8599318, mutex=0x8599314, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#3  0xb77ebae2 in QHostInfoAgent::run (this=0x8599308) at kernel/qhostinfo.cpp:260
#4  0xb62c770e in QThreadPrivate::start (arg=0x8599308) at thread/qthread_unix.cpp:189
#5  0xb62651b5 in start_thread () from /lib/libpthread.so.0
#6  0xb60a73be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb497f700 (LWP 5813)):
[KCrash Handler]
#6  TaskManager::Task::window (this=0x8a4b920) at /usr/src/debug/kdebase-workspace-4.2.85/libs/taskmanager/task.cpp:355
#7  0xb63cc26f in QObject::event (this=0x8a4b920, e=0x0) at kernel/qobject.cpp:1082
#8  0xb6caebb7 in QGraphicsWidget::event (this=0x8a4b920, event=0xbfa3b740) at graphicsview/qgraphicswidget.cpp:1340
#9  0xb664569c in QApplicationPrivate::notify_helper (this=0x806d6e8, receiver=0x8a4b920, e=0xbfa3b740) at kernel/qapplication.cpp:4057
#10 0xb664d99e in QApplication::notify (this=0x8065160, receiver=0x8a4b920, e=0xbfa3b740) at kernel/qapplication.cpp:3604
#11 0xb7523b8d in KApplication::notify (this=0x8065160, receiver=0x8a4b920, event=0xbfa3b740) at /usr/src/debug/kdelibs-4.2.85/kdeui/kernel/kapplication.cpp:307
#12 0xb63bbadb in QCoreApplication::notifyInternal (this=0x8065160, receiver=0x8a4b920, event=0xbfa3b740) at kernel/qcoreapplication.cpp:610
#13 0xb63eb176 in QTimerInfoList::activateTimers (this=0x8078a94) at kernel/qcoreapplication.h:213
#14 0xb63e7600 in timerSourceDispatch (source=0x8078a60) at kernel/qeventdispatcher_glib.cpp:164
#15 0xb4d849c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0xb4d88083 in ?? () from /usr/lib/libglib-2.0.so.0
#17 0xb4d88241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0xb63e7558 in QEventDispatcherGlib::processEvents (this=0x80700e8, flags={i = -1079789336}) at kernel/qeventdispatcher_glib.cpp:324
#19 0xb66e5975 in QGuiEventDispatcherGlib::processEvents (this=0x80700e8, flags={i = -1079789288}) at kernel/qguieventdispatcher_glib.cpp:202
#20 0xb63ba0fa in QEventLoop::processEvents (this=0xbfa3b990, flags={i = -1079789224}) at kernel/qeventloop.cpp:149
#21 0xb63ba53a in QEventLoop::exec (this=0xbfa3b990, flags={i = -1079789160}) at kernel/qeventloop.cpp:200
#22 0xb63bc9e9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#23 0xb6645517 in QApplication::exec () at kernel/qapplication.cpp:3526
#24 0xb7ea6170 in kdemain (argc=1, argv=0xbfa3bb44) at /usr/src/debug/kdebase-workspace-4.2.85/plasma/shells/desktop/main.cpp:50
#25 0x08048792 in main (argc=1072693248, argv=0x0) at /usr/src/debug/kdebase-workspace-4.2.85/build/plasma/shells/desktop/plasma-desktop_dummy.cpp:3