Application that crashed: kpackagekit
Version of the application: 0.5.4
KDE Version: 4.3.5 (KDE 4.3.5)
Qt Version: 4.5.3
Operating System: Linux 2.6.31.12-174.2.19.fc12.i686.PAE i686

What I was doing when the application crashed:
I'have just made a research with kapackagekit (no result found: ok).
Afterwards I have done smth that has no relation with kpackagekit (ie using firefox).
Suddently (5 / 10 min after having used kpackagekit), kpackagekit crashed ! (= the "Crash Reporting Assistant" has openend).

 -- Backtrace:
Application: KPackageKit (kpackagekit), signal: Segmentation fault
[KCrash Handler]
#6  0x074ed908 in QMutex::lock() () from /usr/lib/libQtCore.so.4
#7  0x075e39d5 in QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib/libQtCore.so.4
#8  0x075e3cdd in QCoreApplication::postEvent(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#9  0x075f3405 in QObject::deleteLater() () from /usr/lib/libQtCore.so.4
#10 0x02155b1f in PackageKit::ClientPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#11 0x02157113 in PackageKit::ClientPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#12 0x075f9c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#13 0x075fa843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#14 0x07858350 in QDBusConnectionInterface::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libQtDBus.so.4
#15 0x078586ab in QDBusConnectionInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtDBus.so.4
#16 0x075f9c0c in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/libQtCore.so.4
#17 0x075fa843 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#18 0x078581f0 in QDBusConnectionInterface::NameOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libQtDBus.so.4
#19 0x0785873b in QDBusConnectionInterface::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtDBus.so.4
#20 0x07821a3c in ?? () from /usr/lib/libQtDBus.so.4
#21 0x078299a8 in ?? () from /usr/lib/libQtDBus.so.4
#22 0x075f3f96 in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#23 0x02425b24 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0x0242d281 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#25 0x07ca58cb in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#26 0x075e3d73 in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#27 0x075e4972 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/libQtCore.so.4
#28 0x075e4b2e in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libQtCore.so.4
#29 0x0760ef40 in ?? () from /usr/lib/libQtCore.so.4
#30 0x002c7f88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#31 0x002cb8b8 in ?? () from /lib/libglib-2.0.so.0
#32 0x002cb9e4 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#33 0x0760eb6d in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#34 0x024c5356 in ?? () from /usr/lib/libQtGui.so.4
#35 0x075e22aa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#36 0x075e270a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#37 0x075e4bf7 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#38 0x024259a8 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#39 0x0804cd6b in _start ()

Reported using DrKonqi