Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-12-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I tried to make adjust the settings of folder view plasmoid, while it was attached to panel. After adjusting the setting and moving the plasmoid, the whole plasma crashed.

 -- Backtrace:
Application: Plasma Workspace (plasma-desktop), signal: Segmentation fault
[KCrash Handler]
#6  0xb6fdcb9e in QGraphicsWidget::removeAction () from /usr/lib/libQtGui.so.4
#7  0xb694f8a0 in QAction::~QAction () from /usr/lib/libQtGui.so.4
#8  0xb69b4e88 in QWidgetAction::~QWidgetAction () from /usr/lib/libQtGui.so.4
#9  0xb76d0d08 in KAction::~KAction () from /usr/lib/libkdeui.so.5
#10 0xb66d7bef in QObjectPrivate::deleteChildren () from /usr/lib/libQtCore.so.4
#11 0xb66dfff3 in QObject::~QObject () from /usr/lib/libQtCore.so.4
#12 0xb6fde6ed in QGraphicsWidget::~QGraphicsWidget () from /usr/lib/libQtGui.so.4
#13 0xb7ec2d49 in Plasma::Applet::~Applet () from /usr/lib/libplasma.so.3
#14 0xb7ed3d13 in Plasma::Containment::~Containment () from /usr/lib/libplasma.so.3
#15 0x9ed37fe7 in ?? () from /usr/lib/kde4/plasma_applet_folderview.so
#16 0xb66d78d5 in qDeleteInEventHandler () from /usr/lib/libQtCore.so.4
#17 0xb66d917b in QObject::event () from /usr/lib/libQtCore.so.4
#18 0xb6fdc257 in QGraphicsWidget::event () from /usr/lib/libQtGui.so.4
#19 0xb6953bcc in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#20 0xb695bede in QApplication::notify () from /usr/lib/libQtGui.so.4
#21 0xb77b5c9d in KApplication::notify () from /usr/lib/libkdeui.so.5
#22 0xb66c87ab in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#23 0xb66c9405 in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#24 0xb66c95fd in QCoreApplication::sendPostedEvents () from /usr/lib/libQtCore.so.4
#25 0xb66f458f in ?? () from /usr/lib/libQtCore.so.4
#26 0xb4f9bb88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb4f9f0eb in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb4f9f268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb66f41d8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#30 0xb69f5765 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb66c6dda in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#32 0xb66c721a in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#33 0xb66c96c9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#34 0xb6953a47 in QApplication::exec () from /usr/lib/libQtGui.so.4
#35 0xb8072290 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#36 0x08048712 in _start ()