Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2)) "release 139"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.21-0.1-pae i686
Distribution: "openSUSE 11.1 (i586)"

What I was doing when the application crashed:
After removal of second panel on top of screen Plasma crashed. It contains those widgets |kickof|konsole icon|spacer|systemtray|clock|

 -- Backtrace:
Application: Pracovní plocha Plasma (kdeinit), signal: Segmentation fault
[Current thread is 1 (Thread 0xb5f08700 (LWP 32276))]

Thread 2 (Thread 0xa92d3b90 (LWP 32279)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb7db2c35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb7e12722 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb768bae2 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb7e1170e in ?? () from /usr/lib/libQtCore.so.4
#5  0xb7daf1b5 in start_thread () from /lib/libpthread.so.0
#6  0xb65ce3be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb5f08700 (LWP 32276)):
[KCrash Handler]
#6  0xb5ea4aec in typeinfo for Plasma::Applet () from /usr/lib/libplasma.so.3
#7  0xa93167b1 in SystemTray::ExtenderTaskBusyWidget::updateTask (this=0x85ad780) at /usr/src/debug/kdebase-workspace-4.2.90/plasma/applets/systemtray/core/extendertask.cpp:149
#8  0xa9317305 in SystemTray::ExtenderTaskBusyWidget::qt_metacall (this=0x85ad780, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0xbfb3ac7c)
    at /usr/src/debug/kdebase-workspace-4.2.90/build/plasma/applets/systemtray/extendertask.moc:69
#9  0xb7f1bdc8 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#10 0xb7f1d552 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#11 0xb5d5d933 in Plasma::Extender::itemDetached (this=0x82ee118, _t1=0x87cc8e8) at /usr/src/debug/kdelibs-4.2.90/build/plasma/extender.moc:122
#12 0xb5d66d6e in Plasma::ExtenderItem::destroy (this=0x87cc8e8) at /usr/src/debug/kdelibs-4.2.90/plasma/extenderitem.cpp:433
#13 0xb5d2b0c9 in ~Applet (this=0x832a188) at /usr/src/debug/kdelibs-4.2.90/plasma/applet.cpp:179
#14 0xb5d7523a in ~PopupApplet (this=0x832a188) at /usr/src/debug/kdelibs-4.2.90/plasma/popupapplet.cpp:68
#15 0xa9336949 in ~Applet (this=0x832a188) at /usr/src/debug/kdebase-workspace-4.2.90/plasma/applets/systemtray/ui/applet.cpp:153
#16 0xb5d3bb06 in ~Containment (this=0x82e2cb8) at /usr/include/QtCore/qalgorithms.h:350
#17 0xa959758a in ~Panel (this=0x82e2cb8) at /usr/src/debug/kdebase-workspace-4.2.90/plasma/containments/panel/panel.cpp:121
#18 0xb7f14c45 in qDeleteInEventHandler(QObject*) () from /usr/lib/libQtCore.so.4
#19 0xb7f164db in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#20 0xb6f0ed87 in QGraphicsWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#21 0xb68a569c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#22 0xb68ad99e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb73c3b9d in KApplication::notify (this=0x80a1fc8, receiver=0x82e2cb8, event=0x88061d8) at /usr/src/debug/kdelibs-4.2.90/kdeui/kernel/kapplication.cpp:302
#24 0xb7f05adb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#25 0xb7f06725 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#26 0xb7f0691d in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#27 0xb7f3190f in ?? () from /usr/lib/libQtCore.so.4
#28 0xb644b9c8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0xb644f083 in ?? () from /usr/lib/libglib-2.0.so.0
#30 0xb644f241 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0xb7f31558 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#32 0xb6945975 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb7f040fa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0xb7f0453a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#35 0xb7f069e9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#36 0xb68a5517 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#37 0xb4a12e50 in kdemain (argc=1, argv=0x8088268) at /usr/src/debug/kdebase-workspace-4.2.90/plasma/shells/desktop/main.cpp:50
#38 0x0804e2b0 in launch (argc=1, _name=0x8087c24 "/usr/bin/plasma-desktop", args=0x8087c3c "", cwd=0x0, envc=0, envs=0x8087c40 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x805138c "0") at /usr/src/debug/kdelibs-4.2.90/kinit/kinit.cpp:672
#39 0x0804ea8d in handle_launcher_request (sock=7, who=<value optimized out>) at /usr/src/debug/kdelibs-4.2.90/kinit/kinit.cpp:1164
#40 0x0804ef23 in handle_requests (waitForPid=0) at /usr/src/debug/kdelibs-4.2.90/kinit/kinit.cpp:1357
#41 0x0804fbca in main (argc=2, argv=0xbfb3bc54, envp=0xbfb3bc60) at /usr/src/debug/kdelibs-4.2.90/kinit/kinit.cpp:1784

Reported using DrKonqi