Version:            (using KDE Devel)
Installed from:    Compiled sources
OS:                Linux

After I started kget via the menu (searched for kget) plasma crashed. Regrettably, it seems that I am not able to reproduce this behaviour.

I use kde4daily r744670 and the backtrace for this crash is: 
 

(no debugging symbols found)
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1238755632 (LWP 4022)]
[KCrash handler]
#6  0xb7137ab4 in QStandardItem::d_func ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#7  0xb71319e8 in QStandardItemPrivate::position ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#8  0xb7131c94 in QStandardItem::row ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#9  0xb48de08a in Kickoff::RecentlyUsedModel::Private::removeExistingItem ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#10 0xb48de1a9 in Kickoff::RecentlyUsedModel::Private::addRecentApplication ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#11 0xb48dc60d in Kickoff::RecentlyUsedModel::recentApplicationAdded ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#12 0xb48dc7f9 in Kickoff::RecentlyUsedModel::qt_metacall ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#13 0xb7426af8 in QMetaObject::activate ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtCore.so.4
#14 0xb7426f6d in QMetaObject::activate ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtCore.so.4
#15 0xb48d8ab5 in Kickoff::RecentApplications::applicationAdded ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#16 0xb48d8ef1 in Kickoff::RecentApplications::add ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#17 0xb48e64bf in Kickoff::ServiceItemHandler::openUrl ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#18 0xb48e5db1 in Kickoff::UrlItemLauncher::Private::openUrl ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#19 0xb48e518b in Kickoff::UrlItemLauncher::openItem ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#20 0xb48f061a in Kickoff::Launcher::eventFilter ()
   from /storage/tmp/kde4dev/kde/lib/kde4/plasma_applet_launcher.so
#21 0xb6bf4ecc in QApplicationPrivate::notify_helper ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#22 0xb6bf5ac2 in QApplication::notify ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#23 0xb79a062f in KApplication::notify (this=0x8060628, receiver=0x83a2de8, 
    event=0xbfa5d95c)
    at /storage/tmp/kde4dev/kdelibs/kdeui/kernel/kapplication.cpp:319
#24 0xb7415356 in QCoreApplication::notifyInternal ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtCore.so.4
#25 0xb6c00321 in QCoreApplication::sendSpontaneousEvent ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#26 0xb6c61549 in QETWidget::translateMouseEvent ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#27 0xb6c5f480 in QApplication::x11ProcessEvent ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#28 0xb6c8d047 in x11EventSourceDispatch ()
   from /storage/tmp/kde4dev/qt-unstable/lib/libQtGui.so.4
#29 0xb6454df2 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#30 0xb6457dcf in ?? () from /usr/lib/libglib-2.0.so.0
#31 0x0807c698 in ?? ()
#32 0x00000000 in ?? ()
#0  0xffffe402 in __kernel_vsyscall ()