Application that crashed: kded4
Version of the application: $Id: kded.cpp 944898 2009-03-26 13:01:25Z dfaure $
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.30-8-generic x86_64
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
I didn't manually type in an 'smb://' URL, I just browsed to the domain, machine, then folder in dolphin.

 -- Backtrace:
Application: KDE Daemon (kdeinit), signal: Segmentation fault
[KCrash Handler]
#5  QUrl::operator= (this=0x7fffade30ee0, url=@0x20a9300) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86_64.h:121
#6  0x00007fbf948d2289 in KUrl::operator= (this=0x7fffade30ee0, _u=@0x20a9300) at ../../kdecore/io/kurl.cpp:581
#7  0x00007fbf93e5ae5f in KIO::AuthInfo::operator= (this=0x7fffade30ee0, info=@0x20a9300) at ../../kio/kio/authinfo.cpp:133
#8  0x00007fbf7b533e64 in KPasswdServerAdaptor::qt_metacall (this=0x1ad29f0, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fffade31080) at kpasswdserveradaptor.moc:139
#9  0x00007fbf94dc6e12 in QMetaObject::activate (sender=0x1c7cda0, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3120
#10 0x00007fbf7b52bd5d in KPasswdServer::checkAuthInfoAsyncResult (this=0x7fffade30ee0, _t1=185, _t2=103, _t3=<value optimized out>) at ./kpasswdserver.moc:121
#11 0x00007fbf7b532546 in KPasswdServer::processRequest (this=0x1c7cda0) at ../../kpasswdserver/kpasswdserver.cpp:687
#12 0x00007fbf7b532eb8 in KPasswdServer::qt_metacall (this=0x1c7cda0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffade31810) at ./kpasswdserver.moc:108
#13 0x00007fbf94dc6e12 in QMetaObject::activate (sender=0x1b6d850, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3120
#14 0x00007fbf94dcbedf in QSingleShotTimer::timerEvent (this=0x1b6d850) at kernel/qtimer.cpp:298
#15 0x00007fbf94dc0b83 in QObject::event (this=0x1b6d850, e=0x20a9300) at kernel/qobject.cpp:1082
#16 0x00007fbf92d363fc in QApplicationPrivate::notify_helper (this=0x1a79790, receiver=0x1b6d850, e=0x7fffade31e20) at kernel/qapplication.cpp:4057
#17 0x00007fbf92d3d6ae in QApplication::notify (this=0x7fffade331f0, receiver=0x1b6d850, e=0x7fffade31e20) at kernel/qapplication.cpp:4022
#18 0x00007fbf939a3c36 in KApplication::notify (this=0x7fffade331f0, receiver=0x1b6d850, event=0x7fffade31e20) at ../../kdeui/kernel/kapplication.cpp:302
#19 0x00007fbf94db13ec in QCoreApplication::notifyInternal (this=0x7fffade331f0, receiver=0x1b6d850, event=0x7fffade31e20) at kernel/qcoreapplication.cpp:610
#20 0x00007fbf94ddcd22 in QTimerInfoList::activateTimers (this=0x1a7d470) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#21 0x00007fbf94dda7bd in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:164
#22 0x00007fbf91c658be in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#23 0x00007fbf91c68f98 in ?? () from /usr/lib/libglib-2.0.so.0
#24 0x00007fbf91c690c0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#25 0x00007fbf94dda706 in QEventDispatcherGlib::processEvents (this=0x19fac90, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#26 0x00007fbf92dcc1de in QGuiEventDispatcherGlib::processEvents (this=0x7fffade30ee0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#27 0x00007fbf94dafcc2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#28 0x00007fbf94db0094 in QEventLoop::exec (this=0x7fffade320c0, flags=) at kernel/qeventloop.cpp:200
#29 0x00007fbf931e8b3e in QDialog::exec (this=0x7fffade32270) at dialogs/qdialog.cpp:498
#30 0x00007fbf7b531d54 in KPasswdServer::processRequest (this=0x1c7cda0) at ../../kpasswdserver/kpasswdserver.cpp:605
#31 0x00007fbf7b532eb8 in KPasswdServer::qt_metacall (this=0x1c7cda0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffade32890) at ./kpasswdserver.moc:108
#32 0x00007fbf94dc6e12 in QMetaObject::activate (sender=0x1fb5f80, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3120
#33 0x00007fbf94dcbedf in QSingleShotTimer::timerEvent (this=0x1fb5f80) at kernel/qtimer.cpp:298
#34 0x00007fbf94dc0b83 in QObject::event (this=0x1fb5f80, e=0x20a9300) at kernel/qobject.cpp:1082
#35 0x00007fbf92d363fc in QApplicationPrivate::notify_helper (this=0x1a79790, receiver=0x1fb5f80, e=0x7fffade32ea0) at kernel/qapplication.cpp:4057
#36 0x00007fbf92d3d6ae in QApplication::notify (this=0x7fffade331f0, receiver=0x1fb5f80, e=0x7fffade32ea0) at kernel/qapplication.cpp:4022
#37 0x00007fbf939a3c36 in KApplication::notify (this=0x7fffade331f0, receiver=0x1fb5f80, event=0x7fffade32ea0) at ../../kdeui/kernel/kapplication.cpp:302
#38 0x00007fbf94db13ec in QCoreApplication::notifyInternal (this=0x7fffade331f0, receiver=0x1fb5f80, event=0x7fffade32ea0) at kernel/qcoreapplication.cpp:610
#39 0x00007fbf94ddcd22 in QTimerInfoList::activateTimers (this=0x1a7d470) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#40 0x00007fbf94dda7bd in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:164
#41 0x00007fbf91c658be in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#42 0x00007fbf91c68f98 in ?? () from /usr/lib/libglib-2.0.so.0
#43 0x00007fbf91c690c0 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#44 0x00007fbf94dda706 in QEventDispatcherGlib::processEvents (this=0x19fac90, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#45 0x00007fbf92dcc1de in QGuiEventDispatcherGlib::processEvents (this=0x7fffade30ee0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#46 0x00007fbf94dafcc2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#47 0x00007fbf94db0094 in QEventLoop::exec (this=0x7fffade33140, flags=) at kernel/qeventloop.cpp:200
#48 0x00007fbf94db2189 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#49 0x00007fbf89fa3c4b in kdemain (argc=<value optimized out>, argv=<value optimized out>) at ../../kded/kded.cpp:938
#50 0x0000000000406cd4 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=0x40a1e0 "0") at ../../kinit/kinit.cpp:671
#51 0x0000000000408be0 in main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at ../../kinit/kinit.cpp:1730

This bug may be a duplicate of or related to bug 192750

Reported using DrKonqi