Comment 7 for bug 453189

More details:
I reproduced it 3 times every time scenario is the same:
1. Reboot
2. Launch dolphin
3. in the browse line: smb://192.168.1.X
4. input username (correct one)
5. input password ( correct ) - authentication failed!
6. second attempt - the same username + passwd -> crash

Trace using kdelibs5-dbg

Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#6 KDirListerCache::slotUpdateResult (this=0x84de370, j=0x875efc0) at /build/buildd/kde4libs-4.2.90/kio/kio/kdirlister.cpp:1539
#7 0xb7f306c4 in KDirListerCache::qt_metacall (this=0x84de370, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0xbfee854c) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/kdirlister_p.moc:102
#8 0xb6853ca8 in QMetaObject::activate (sender=0x875efc0, from_signal_index=7, to_signal_index=7, argv=0xbfee854c) at kernel/qobject.cpp:3069
#9 0xb6854932 in QMetaObject::activate (sender=0x875efc0, m=0x80b7400, local_signal_index=3, argv=0xbfee854c) at kernel/qobject.cpp:3143
#10 0xb7468683 in KJob::result (this=0x875efc0, _t1=0x875efc0) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kdecore/kjob.moc:188
#11 0xb7468b29 in KJob::emitResult (this=0x875efc0) at /build/buildd/kde4libs-4.2.90/kdecore/jobs/kjob.cpp:304
#12 0xb7f01245 in KIO::SimpleJob::slotFinished (this=0x875efc0) at /build/buildd/kde4libs-4.2.90/kio/kio/job.cpp:477
#13 0xb7f017fe in KIO::ListJob::slotFinished (this=0x875efc0) at /build/buildd/kde4libs-4.2.90/kio/kio/job.cpp:2408
#14 0xb7f03233 in KIO::ListJob::qt_metacall (this=0x875efc0, _c=QMetaObject::InvokeMetaMethod, _id=3, _a=0xbfee8738) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/jobclasses.moc:764
#15 0xb6853ca8 in QMetaObject::activate (sender=0x892a3c0, from_signal_index=8, to_signal_index=8, argv=0x0) at kernel/qobject.cpp:3069
#16 0xb6854932 in QMetaObject::activate (sender=0x892a3c0, m=0xb80a9f44, local_signal_index=4, argv=0x0) at kernel/qobject.cpp:3143
#17 0xb7fc7097 in KIO::SlaveInterface::finished (this=0x892a3c0) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/slaveinterface.moc:165
#18 0xb7fcadd7 in KIO::SlaveInterface::dispatch (this=0x892a3c0, _cmd=104, rawdata=@0xbfee8904) at /build/buildd/kde4libs-4.2.90/kio/kio/slaveinterface.cpp:175
#19 0xb7fc7577 in KIO::SlaveInterface::dispatch (this=0x892a3c0) at /build/buildd/kde4libs-4.2.90/kio/kio/slaveinterface.cpp:91
#20 0xb7fb92ed in KIO::Slave::gotInput (this=0x892a3c0) at /build/buildd/kde4libs-4.2.90/kio/kio/slave.cpp:322
#21 0xb7fbb783 in KIO::Slave::qt_metacall (this=0x892a3c0, _c=QMetaObject::InvokeMetaMethod, _id=2, _a=0xbfee8a18) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/slave.moc:76
#22 0xb6853ca8 in QMetaObject::activate (sender=0x87b1b90, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3069
#23 0xb6854932 in QMetaObject::activate (sender=0x87b1b90, m=0xb80a6880, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3143
#24 0xb7ec5df7 in KIO::Connection::readyRead (this=0x87b1b90) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/connection.moc:86
#25 0xb7ec7763 in KIO::ConnectionPrivate::dequeue (this=0x892a3a0) at /build/buildd/kde4libs-4.2.90/kio/kio/connection.cpp:82
#26 0xb7ec7b46 in KIO::Connection::qt_metacall (this=0x87b1b90, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x88d99d8) at /build/buildd/kde4libs-4.2.90/obj-i486-linux-gnu/kio/connection.moc:73
#27 0xb684c8fb in QMetaCallEvent::placeMetaCall (this=0x88750e0, object=0x87b1b90) at kernel/qobject.cpp:489
#28 0xb684e3a0 in QObject::event (this=0x87b1b90, e=0x88750e0) at kernel/qobject.cpp:1118
#29 0xb6a75e9c in QApplicationPrivate::notify_helper (this=0x843e050, receiver=0x87b1b90, e=0x88750e0) at kernel/qapplication.cpp:4084
#30 0xb6a7e19e in QApplication::notify (this=0xbfee91c4, receiver=0x87b1b90, e=0x88750e0) at kernel/qapplication.cpp:3631
#31 0xb77e1e8d in KApplication::notify (this=0xbfee91c4, receiver=0x87b1b90, event=0x88750e0) at /build/buildd/kde4libs-4.2.90/kdeui/kernel/kapplication.cpp:302
#32 0xb683da3b in QCoreApplication::notifyInternal (this=0xbfee91c4, receiver=0x87b1b90, event=0x88750e0) at kernel/qcoreapplication.cpp:602
#33 0xb683e695 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x84152c8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#34 0xb683e88d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1132
#35 0xb68697ef in postEventSourceDispatch (s=0x84360c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#36 0xb5fb3b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#37 0xb5fb70eb in ?? () from /usr/lib/libglib-2.0.so.0
#38 0xb5fb7268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#39 0xb6869438 in QEventDispatcherGlib::processEvents (this=0x8433370, flags={i = -1074884440}) at kernel/qeventdispatcher_glib.cpp:323
#40 0xb6b17365 in QGuiEventDispatcherGlib::processEvents (this=0x8433370, flags={i = -1074884392}) at kernel/qguieventdispatcher_glib.cpp:202
#41 0xb683c06a in QEventLoop::processEvents (this=0xbfee9150, flags={i = -1074884328}) at kernel/qeventloop.cpp:149
#42 0xb683c4aa in QEventLoop::exec (this=0xbfee9150, flags={i = -1074884264}) at kernel/qeventloop.cpp:200
#43 0xb683e959 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:880
#44 0xb6a75d17 in QApplication::exec () at kernel/qapplication.cpp:3553
#45 0x0807a8af in _start ()