Application that crashed: kpackagekit
Version of the application: 0.4.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-17-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
Somewhat different versions of packages than in #197750, but symptoms seem to be the same - every time update notifications are confirmed in kpackagekit with OK it crashes (but dpkg still installs packages in the background as indicated by /var/log/dpkg.log). No packages have been held back, so this does not seem to be relevant for the crash.

 -- Backtrace:
Application: Kpackagekit (kpackagekit), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007f006086b654 in QObject::parent (this=0x1811bf0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:243
#6  QWidget::parentWidget (this=0x1811bf0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:988
#7  QWidget::window (this=0x1811bf0) at kernel/qwidget.cpp:3882
#8  0x00007f0060830683 in QApplicationPrivate::dispatchEnterLeave (enter=<value optimized out>, leave=0x1811bf0) at kernel/qapplication.cpp:2527
#9  0x00007f0060830b06 in QApplicationPrivate::sendMouseEvent (receiver=0x1695490, event=0x7fff59085690, alienWidget=0x1695490, nativeWidget=0x1650540, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at kernel/qapplication.cpp:2908
#10 0x00007f0060896a0e in QETWidget::translateMouseEvent (this=0x1650540, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#11 0x00007f0060895aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff590871c0) at kernel/qapplication_x11.cpp:3550
#12 0x00007f00608bed0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#13 0x00007f005bc8cbce in g_main_dispatch (context=0x14adc00) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:1960
#14 IA__g_main_context_dispatch (context=0x14adc00) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2513
#15 0x00007f005bc90598 in g_main_context_iterate (context=0x14adc00, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2591
#16 0x00007f005bc906c0 in IA__g_main_context_iteration (context=0x14adc00, may_block=1) at /build/buildd/glib2.0-2.22.3/glib/gmain.c:2654
#17 0x00007f005ff3a1a6 in QEventDispatcherGlib::processEvents (this=0x1480640, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#18 0x00007f00608be4be in QGuiEventDispatcherGlib::processEvents (this=0x1811bf0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#19 0x00007f005ff10532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#20 0x00007f005ff10904 in QEventLoop::exec (this=0x7fff590874f0, flags=) at kernel/qeventloop.cpp:201
#21 0x00007f005ff12ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#22 0x0000000000407c52 in main (argc=<value optimized out>, argv=<value optimized out>) at /build/buildd/kpackagekit-0.4.2/KPackageKit/main.cpp:66

This bug may be a duplicate of or related to bug 197750

Reported using DrKonqi