Application: kded4 ($Id: kded.cpp 1031637 2009-10-05 16:58:19Z lunakl $)
KDE Platform Version: 4.4.1 (KDE 4.4.1)
Qt Version: 4.6.2
Operating System: Linux 2.6.32-17-generic x86_64
Distribution: Ubuntu lucid (development branch)

-- Information about the crash:
There is a chance this occurs only on Kubuntu packages, but it occurs everytime.

How to reproduce:

1) I scp anything from a remote machine to this machine and I get a popup stating "Software upgrade notifications are available"

2) I click the "Details" button in the message popup and the crash occurs

If possible, if you are on a custom build or non-Kubuntu build, could you please try to scp anything from a remote computer to your computer running KDE >= 4.4.1. When the scp completes you should receive a message notification about upgrade notifications available. I sure hope this isn't the expected behavior as it is quite silly and very annoying as I scp so many times a day. And if you click on details button you should get the crash.

The crash can be reproduced every time.

 -- Backtrace:
Application: KDE Daemon (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  QMap<QString, QString>::findNode (this=0x0, name=..., language=...) at /usr/include/qt4/QtCore/qmap.h:458
#6  QMap<QString, QString>::contains (this=0x0, name=..., language=...) at /usr/include/qt4/QtCore/qmap.h:530
#7  Hook::getField (this=0x0, name=..., language=...) at /build/buildd/kubuntu-notification-helper-10.04ubuntu1/src/daemon/hookevent/hook.cpp:84
#8  0x00007feb958526ab in HookGui::updateDialog (this=0x14fdc30, hooks=) at /build/buildd/kubuntu-notification-helper-10.04ubuntu1/src/daemon/hookevent/hookgui.cpp:78
#9  0x00007feb95852cc9 in HookGui::showDialog (this=0x14fdc30, hooks=<value optimized out>) at /build/buildd/kubuntu-notification-helper-10.04ubuntu1/src/daemon/hookevent/hookgui.cpp:47
#10 0x00007feb95851784 in HookEvent::run (this=0x140f2c0) at /build/buildd/kubuntu-notification-helper-10.04ubuntu1/src/daemon/hookevent/hookevent.cpp:72
#11 0x00007feb958520e1 in HookEvent::qt_metacall (this=0x140f2c0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=<value optimized out>)
    at /build/buildd/kubuntu-notification-helper-10.04ubuntu1/obj-x86_64-linux-gnu/src/daemon/hookevent.moc:74
#12 0x00007feba9bdcdcf in QMetaObject::activate (sender=0x14e1610, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x530055005f006e) at kernel/qobject.cpp:3293
#13 0x00007febaa145095 in KNotification::activate (this=0x14e1610, action=1) at ../../kdeui/notifications/knotification.cpp:230
#14 0x00007febaa148538 in KNotificationManager::notificationActivated (this=0x1508d00, id=424, action=1) at ../../kdeui/notifications/knotificationmanager.cpp:87
#15 0x00007febaa14870d in KNotificationManager::qt_metacall (this=0x1508d00, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff292d9cf0) at ./knotificationmanager_p.moc:76
#16 0x00007feba7f8f486 in QDBusConnectionPrivate::deliverCall (this=<value optimized out>, object=<value optimized out>, msg=<value optimized out>, metaTypes=..., slotIdx=<value optimized out>)
    at qdbusintegrator.cpp:904
#17 0x00007feba7f9a05f in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib/libQtDBus.so.4
#18 0x00007feba9bd9cd9 in QObject::event (this=0x1508d00, e=0x11f45d0) at kernel/qobject.cpp:1248
#19 0x00007feba8d6622c in QApplicationPrivate::notify_helper (this=0x11ad640, receiver=0x1508d00, e=0x11f45d0) at kernel/qapplication.cpp:4300
#20 0x00007feba8d6c6fb in QApplication::notify (this=0x7fff292da7e0, receiver=0x1508d00, e=0x11f45d0) at kernel/qapplication.cpp:4183
#21 0x00007febaa111516 in KApplication::notify (this=0x7fff292da7e0, receiver=0x1508d00, event=0x11f45d0) at ../../kdeui/kernel/kapplication.cpp:302
#22 0x00007feba9bc9ffc in QCoreApplication::notifyInternal (this=0x7fff292da7e0, receiver=0x1508d00, event=0x11f45d0) at kernel/qcoreapplication.cpp:704
#23 0x00007feba9bcc777 in QCoreApplication::sendEvent (receiver=0x0, event_type=<value optimized out>, data=0x1126cb0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x1126cb0) at kernel/qcoreapplication.cpp:1345
#25 0x00007feba9bf3963 in QCoreApplication::sendPostedEvents (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#26 postEventSourceDispatch (s=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:276
#27 0x00007feba4d95972 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#28 0x00007feba4d997f8 in ?? () from /lib/libglib-2.0.so.0
#29 0x00007feba4d999ac in g_main_context_iteration () from /lib/libglib-2.0.so.0
#30 0x00007feba9bf34a3 in QEventDispatcherGlib::processEvents (this=0x11281c0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#31 0x00007feba8e1630e in QGuiEventDispatcherGlib::processEvents (this=0x7feba888fe40, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x00007feba9bc8922 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#33 0x00007feba9bc8cfc in QEventLoop::exec (this=0x7fff292da730, flags=) at kernel/qeventloop.cpp:201
#34 0x00007feba9bcca3b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#35 0x00007feb9d85ed47 in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kded/kded.cpp:932
#36 0x00000000004070f3 in launch (argc=1, _name=<value optimized out>, args=<value optimized out>, cwd=<value optimized out>, envc=0, envs=<value optimized out>, reset_env=false, tty=0x0, 
    avoid_loops=false, startup_id_str=0x40a4f9 "0") at ../../kinit/kinit.cpp:717
#37 0x000000000040901f in main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1784

Reported using DrKonqi