Application: kpackagekitsmarticon (0.5.4)
KDE Platform Version: 4.5.3 (KDE 4.5.3)
Qt Version: 4.7.0
Operating System: Linux 2.6.32-27-generic i686
Distribution: Ubuntu 10.04.1 LTS

-- Information about the crash:
Recently, I've added the repositery "backports" of KDE, and a package have been removed. Now, the update manager crashes every time I use French language, but not when I use English (or any one other). 

The crash can be reproduced every time.

 -- Backtrace:
Application: KPackageKit (kpackagekitsmarticon), signal: Segmentation fault
[KCrash Handler]
#6  0x01105883 in QObjectPrivate::isSignalConnected (sender=0x8831330, m=0x80786a4, local_signal_index=11, argv=0xbfaa7cf4) at kernel/qobject_p.h:223
#7  QMetaObject::activate (sender=0x8831330, m=0x80786a4, local_signal_index=11, argv=0xbfaa7cf4) at kernel/qobject.cpp:3203
#8  0x001a8e19 in PackageKit::Transaction::finished(PackageKit::Transaction::ExitStatus, unsigned int) () from /usr/lib/libpackagekit-qt.so.12
#9  0x001a337c in PackageKit::ClientPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#10 0x001a5453 in PackageKit::ClientPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#11 0x010f2d4a in QMetaObject::metacall (object=0x87dd088, cl=13, idx=6, argv=0xbfaa7e80) at kernel/qmetaobject.cpp:237
#12 0x01105ab5 in QMetaObject::activate (sender=0x87f94c8, m=0x24bc88, local_signal_index=2, argv=0xbfaa7e80) at kernel/qobject.cpp:3280
#13 0x00233a1f in QDBusConnectionInterface::serviceOwnerChanged (this=0x87f94c8, _t1=..., _t2=..., _t3=...) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:210
#14 0x00233d43 in QDBusConnectionInterface::qt_metacall (this=0x87f94c8, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfaa8050) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:137
#15 0x010f2d4a in QMetaObject::metacall (object=0x87f94c8, cl=13, idx=7, argv=0xbfaa8050) at kernel/qmetaobject.cpp:237
#16 0x01105ab5 in QMetaObject::activate (sender=0x87f94c8, m=0x24bc88, local_signal_index=6, argv=0xbfaa8050) at kernel/qobject.cpp:3280
#17 0x002338cf in QDBusConnectionInterface::NameOwnerChanged (this=0x87f94c8, _t1=..., _t2=..., _t3=...) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:238
#18 0x00233dd3 in QDBusConnectionInterface::qt_metacall (this=0x87f94c8, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbfaa825c) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:141
#19 0x001f21e4 in QDBusConnectionPrivate::deliverCall (this=0x87dd460, object=0x87f94c8, msg=..., metaTypes=..., slotIdx=11) at qdbusintegrator.cpp:919
#20 0x001fd927 in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib/libQtDBus.so.4
#21 0x010ffac2 in QObject::event (this=0x87f94c8, e=0x0) at kernel/qobject.cpp:1219
#22 0x053d372c in QApplicationPrivate::notify_helper (this=0x86e4488, receiver=0x87f94c8, e=0x8746018) at kernel/qapplication.cpp:4396
#23 0x053d977e in QApplication::notify (this=0xbfaa8b28, receiver=0x87f94c8, e=0x8746018) at kernel/qapplication.cpp:3798
#24 0x0048240a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#25 0x010ecfeb in QCoreApplication::notifyInternal (this=0xbfaa8b28, receiver=0x87f94c8, event=0x8746018) at kernel/qcoreapplication.cpp:732
#26 0x010f024b in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x86c69c8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x86c69c8) at kernel/qcoreapplication.cpp:1373
#28 0x010f040d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1266
#29 0x0111bd04 in QCoreApplication::sendPostedEvents (s=0x86e6718) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#30 postEventSourceDispatch (s=0x86e6718) at kernel/qeventdispatcher_glib.cpp:277
#31 0x069315e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x069352d8 in ?? () from /lib/libglib-2.0.so.0
#33 0x069354b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x0111b7f5 in QEventDispatcherGlib::processEvents (this=0x86c6508, flags=...) at kernel/qeventdispatcher_glib.cpp:415
#35 0x05494f85 in QGuiEventDispatcherGlib::processEvents (this=0x86c6508, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x010eba99 in QEventLoop::processEvents (this=0xbfaa8a84, flags=) at kernel/qeventloop.cpp:149
#37 0x010ebf1a in QEventLoop::exec (this=0xbfaa8a84, flags=...) at kernel/qeventloop.cpp:201
#38 0x010f04cf in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009
#39 0x053d2557 in QApplication::exec () at kernel/qapplication.cpp:3672
#40 0x080510c1 in _start ()

Reported using DrKonqi