Application: kpackagekitsmarticon (0.5.4)
KDE Platform Version: 4.4.2 (KDE 4.4.2)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-23-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
KPackageKit changed behaviors on me, without my making that change.  It suddenly stopped notifying me about available updates and started to apply them automatically, instead.  I attempted to open the Software Sources, Updates screen to change it back to "Notify" only, but the update window was blank.  I closed KPackageKit and it crashed.  I tried three times and it crashed all three times.  It persisted after rebooting.

The crash can be reproduced every time.

 -- Backtrace:
Application: KPackageKit (kpackagekitsmarticon), signal: Segmentation fault
[KCrash Handler]
#6  0x00c0e65b in QObjectPrivate::isSignalConnected (sender=0x8ff61b0, m=0x80796a4, local_signal_index=11, argv=0xbf9feaf4) at kernel/qobject_p.h:227
#7  QMetaObject::activate (sender=0x8ff61b0, m=0x80796a4, local_signal_index=11, argv=0xbf9feaf4) at kernel/qobject.cpp:3218
#8  0x00f4be19 in PackageKit::Transaction::finished(PackageKit::Transaction::ExitStatus, unsigned int) () from /usr/lib/libpackagekit-qt.so.12
#9  0x00f4637c in PackageKit::ClientPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/libpackagekit-qt.so.12
#10 0x00f48453 in PackageKit::ClientPrivate::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libpackagekit-qt.so.12
#11 0x00bffc9a in QMetaObject::metacall (object=0x8f7f108, cl=13, idx=6, argv=0xbf9fec80) at kernel/qmetaobject.cpp:237
#12 0x00c0e3d5 in QMetaObject::activate (sender=0x8f893e0, m=0x187c88, local_signal_index=2, argv=0xbf9fec80) at kernel/qobject.cpp:3293
#13 0x0016fd9f in QDBusConnectionInterface::serviceOwnerChanged (this=0x8f893e0, _t1=..., _t2=..., _t3=...) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:210
#14 0x001700c3 in QDBusConnectionInterface::qt_metacall (this=0x8f893e0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbf9fee50) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:137
#15 0x00bffc9a in QMetaObject::metacall (object=0x8f893e0, cl=13, idx=7, argv=0xbf9fee50) at kernel/qmetaobject.cpp:237
#16 0x00c0e3d5 in QMetaObject::activate (sender=0x8f893e0, m=0x187c88, local_signal_index=6, argv=0xbf9fee50) at kernel/qobject.cpp:3293
#17 0x0016fc4f in QDBusConnectionInterface::NameOwnerChanged (this=0x8f893e0, _t1=..., _t2=..., _t3=...) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:238
#18 0x00170153 in QDBusConnectionInterface::qt_metacall (this=0x8f893e0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbf9ff05c) at .moc/release-shared/moc_qdbusconnectioninterface.cpp:141
#19 0x00130b34 in QDBusConnectionPrivate::deliverCall (this=0x8f7f4b8, object=0x8f893e0, msg=..., metaTypes=..., slotIdx=11) at qdbusintegrator.cpp:904
#20 0x0013bea7 in QDBusCallDeliveryEvent::placeMetaCall (this=0x8fc73b0, object=0x8f893e0) at qdbusintegrator_p.h:101
#21 0x00c0b3fe in QObject::event (this=0x8f893e0, e=0x8fc73b0) at kernel/qobject.cpp:1248
#22 0x06df44dc in QApplicationPrivate::notify_helper (this=0x8edfe90, receiver=0x8f893e0, e=0x8fc73b0) at kernel/qapplication.cpp:4300
#23 0x06dfb05e in QApplication::notify (this=0xbf9ff928, receiver=0x8f893e0, e=0x8fc73b0) at kernel/qapplication.cpp:3704
#24 0x00469f2a in KApplication::notify (this=0xbf9ff928, receiver=0x8f893e0, event=0x8fc73b0) at ../../kdeui/kernel/kapplication.cpp:302
#25 0x00bfaa3b in QCoreApplication::notifyInternal (this=0xbf9ff928, receiver=0x8f893e0, event=0x8fc73b0) at kernel/qcoreapplication.cpp:704
#26 0x00bfd473 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8ec3420) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8ec3420) at kernel/qcoreapplication.cpp:1345
#28 0x00bfd5dd in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#29 0x00c26adf in QCoreApplication::sendPostedEvents (s=0x8ee3710) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#30 postEventSourceDispatch (s=0x8ee3710) at kernel/qeventdispatcher_glib.cpp:276
#31 0x03b565e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x03b5a2d8 in ?? () from /lib/libglib-2.0.so.0
#33 0x03b5a4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x00c265d5 in QEventDispatcherGlib::processEvents (this=0x8ec2fb0, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#35 0x06eb4135 in QGuiEventDispatcherGlib::processEvents (this=0x8ec2fb0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00bf9059 in QEventLoop::processEvents (this=0xbf9ff884, flags=) at kernel/qeventloop.cpp:149
#37 0x00bf94aa in QEventLoop::exec (this=0xbf9ff884, flags=...) at kernel/qeventloop.cpp:201
#38 0x00bfd69f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#39 0x06df4577 in QApplication::exec () at kernel/qapplication.cpp:3579
#40 0x08051181 in _start ()

Possible duplicates by query: bug 243268, bug 242594, bug 242455, bug 241984, bug 241950.

Reported using DrKonqi