Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1) "release 6"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-default x86_64

What I was doing when the application crashed:
Before this happened, I had a corrupted desktop. What I did:
- Change Screen Edge of a top panel to one of the sides (Panel became almost inaccessible)
- At one point I finally achieved that it became a top panel again. 
- I changed around some widgets in the top panel
- Then at one point the desktop became black as if the bottom panel suddenly became very high covering almost all my folder view desktop. Only a narrow strip at the top was left visible of the desktop. 
- In an attempt to regain a correct desktop I right clicked in the narrow strip to change from folder view to Desktop. It did not help.
- Then I changed to Type Plain Desktop and it crashed. 
Fortunately after the crash I recovered my desktop. I'll have to redo my top panel though

 -- Backtrace:
Application: Plasma Workspace (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f9ff6fb0750 (LWP 8571))]

Thread 2 (Thread 0x7f9fd7e68910 (LWP 8572)):
#0  0x00007f9ff679c049 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007f9ff6a0c53b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQtCore.so.4
#2  0x00007f9ff2ee59ec in ?? () from /usr/lib64/libQtNetwork.so.4
#3  0x00007f9ff6a0b485 in ?? () from /usr/lib64/libQtCore.so.4
#4  0x00007f9ff679765d in start_thread () from /lib64/libpthread.so.0
#5  0x00007f9ff41ab14d in clone () from /lib64/libc.so.6
#6  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f9ff6fb0750 (LWP 8571)):
[KCrash Handler]
#5  0x00007f9ff4e722cd in QGraphicsScene::addItem(QGraphicsItem*) () from /usr/lib64/libQtGui.so.4
#6  0x00007f9fee728dd5 in ?? () from /usr/lib64/libplasma.so.3
#7  0x00007f9fee78b65f in Plasma::View::swapContainment(Plasma::Containment*, QString const&, QList<QVariant> const&) () from /usr/lib64/libplasma.so.3
#8  0x00007f9feb02c47d in KDialog::setButtons(QFlags<KDialog::ButtonCode>) () from /usr/lib64/libkdeinit4_plasma-desktop.so
#9  0x00007f9feb029bbc in KDialog::setButtons(QFlags<KDialog::ButtonCode>) () from /usr/lib64/libkdeinit4_plasma-desktop.so
#10 0x00007f9ff6b05fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#11 0x00007f9ff545016a in KDialog::slotButtonClicked(int) () from /usr/lib64/libkdeui.so.5
#12 0x00007f9ff5452499 in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#13 0x00007f9ff55066c0 in KPageDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#14 0x00007f9ff543f840 in KConfigDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#15 0x00007f9feb029ae0 in KDialog::setButtons(QFlags<KDialog::ButtonCode>) () from /usr/lib64/libkdeinit4_plasma-desktop.so
#16 0x00007f9ff6b05fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#17 0x00007f9ff6b08aee in QSignalMapper::mapped(int) () from /usr/lib64/libQtCore.so.4
#18 0x00007f9ff6b09ce0 in QSignalMapper::map(QObject*) () from /usr/lib64/libQtCore.so.4
#19 0x00007f9ff6b09f50 in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQtCore.so.4
#20 0x00007f9ff6b05fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#21 0x00007f9ff4ec5e27 in QAbstractButton::clicked(bool) () from /usr/lib64/libQtGui.so.4
#22 0x00007f9ff4c27c2b in ?? () from /usr/lib64/libQtGui.so.4
#23 0x00007f9ff4c2983b in ?? () from /usr/lib64/libQtGui.so.4
#24 0x00007f9ff4c29a85 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQtGui.so.4
#25 0x00007f9ff492fcf0 in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#26 0x00007f9ff48e12ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#27 0x00007f9ff48e83c1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#28 0x00007f9ff54db8d6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#29 0x00007f9ff6af0ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#30 0x00007f9ff48e7c90 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib64/libQtGui.so.4
#31 0x00007f9ff494dcfe in ?? () from /usr/lib64/libQtGui.so.4
#32 0x00007f9ff494cd9a in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#33 0x00007f9ff4974b6c in ?? () from /usr/lib64/libQtGui.so.4
#34 0x00007f9ff382adde in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#35 0x00007f9ff382e7a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#36 0x00007f9ff382e8d0 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#37 0x00007f9ff6b193a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#38 0x00007f9ff497431e in ?? () from /usr/lib64/libQtGui.so.4
#39 0x00007f9ff6aef712 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#40 0x00007f9ff6aefae4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#41 0x00007f9ff6af1c99 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#42 0x00007f9feb039d6f in kdemain () from /usr/lib64/libkdeinit4_plasma-desktop.so
#43 0x0000000000406f88 in _start ()

This bug may be a duplicate of or related to bug 211722

Reported using DrKonqi