Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.6-desktop-1mnb i686
Distribution: "Mandriva Linux 2010.0"

What I was doing when the application crashed:
I was trying to add a new panel on top of the screen, and when removed a widget (system tray), KDE crashed and a report pop out with some information about the qt libraries

 -- Backtrace:
Application: Área de trabajo de Plasma (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#6  0xb6869a97 in QGraphicsItem::isWidget () from /usr/lib/libQtGui.so.4
#7  0xb686c992 in QGraphicsItem::isWindow () from /usr/lib/libQtGui.so.4
#8  0xb68a42df in QGraphicsScene::event () from /usr/lib/libQtGui.so.4
#9  0xb624c68c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#10 0xb62540ce in QApplication::notify () from /usr/lib/libQtGui.so.4
#11 0xb6cada21 in KApplication::notify () from /usr/lib/libkdeui.so.5
#12 0xb76c5c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#13 0xb68b5e98 in QGraphicsView::viewportEvent () from /usr/lib/libQtGui.so.4
#14 0xb67027c6 in ?? () from /usr/lib/libQtGui.so.4
#15 0xb76c4dee in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#16 0xb624c660 in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#17 0xb625401e in QApplication::notify () from /usr/lib/libQtGui.so.4
#18 0xb6cada21 in KApplication::notify () from /usr/lib/libkdeui.so.5
#19 0xb76c5c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#20 0xb62a3abf in QWidget::event () from /usr/lib/libQtGui.so.4
#21 0xb665fc95 in QFrame::event () from /usr/lib/libQtGui.so.4
#22 0xb6700c3a in QAbstractScrollArea::event () from /usr/lib/libQtGui.so.4
#23 0xb68b5c88 in QGraphicsView::event () from /usr/lib/libQtGui.so.4
#24 0xb624c68c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#25 0xb625401e in QApplication::notify () from /usr/lib/libQtGui.so.4
#26 0xb6cada21 in KApplication::notify () from /usr/lib/libkdeui.so.5
#27 0xb76c5c0e in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#28 0xb62577f4 in QApplication::setActiveWindow () from /usr/lib/libQtGui.so.4
#29 0xb62c343b in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#30 0xb62eed88 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb5e3bb92 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#32 0xb5e3f468 in ?? () from /usr/lib/libglib-2.0.so.0
#33 0xb5e3f58e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#34 0xb76f18f1 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#35 0xb62ee4ba in ?? () from /usr/lib/libQtGui.so.4
#36 0xb76c426d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#37 0xb76c46b9 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#38 0xb76c6b50 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#39 0xb624c504 in QApplication::exec () from /usr/lib/libQtGui.so.4
#40 0xb3ef5bd9 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#41 0x0804da54 in _start ()

This bug may be a duplicate of or related to bug 219942

Reported using DrKonqi