Crashes every time trying to connect to smb server at 10.15.10.15 using dolphin 1.6.1 on KDE 4.6.2 (Ubuntu 11.04).

##### dolphin console output:

dolphin(3918)/kio (KDirListerCache): Internal error: itemsInUse did not contain "smb://yc@10.15.10.15/" 
KCrash: Application 'dolphin' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit

##### Backtrace:

Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f7fb4b33780 (LWP 3918))]

Thread 3 (Thread 0x7f7fa0ef3700 (LWP 3919)):
#0  __poll (fds=0x24c4470, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:85
#1  0x00007f7facbca104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7facbca639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7fb08b1446 in QEventDispatcherGlib::processEvents (this=0x2466480, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7fb0885882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7fb0885abc in QEventLoop::exec (this=0x7f7fa0ef2dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7fb079c924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f7fb0867c2f in QInotifyFileSystemWatcherEngine::run (this=0x242d6d0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7fb079f175 in QThreadPrivate::start (arg=0x242d6d0) at thread/qthread_unix.cpp:320
#9  0x00007f7fad095d8c in start_thread (arg=0x7f7fa0ef3700) at pthread_create.c:304
#10 0x00007f7fb443904d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f7f9a7f4700 (LWP 3923)):
#0  0x00007f7fb442bf03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f7facbca104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7facbca639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7fb08b1446 in QEventDispatcherGlib::processEvents (this=0x2714470, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f7fb0885882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f7fb0885abc in QEventLoop::exec (this=0x7f7f9a7f3dd0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007f7fb079c924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007f7fb0867c2f in QInotifyFileSystemWatcherEngine::run (this=0x2445670) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f7fb079f175 in QThreadPrivate::start (arg=0x2445670) at thread/qthread_unix.cpp:320
#9  0x00007f7fad095d8c in start_thread (arg=0x7f7f9a7f4700) at pthread_create.c:304
#10 0x00007f7fb443904d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f7fb4b33780 (LWP 3918)):
[KCrash Handler]
#6  detach (this=0x250d900, j=<value optimized out>) at /usr/include/qt4/QtCore/qlist.h:126
#7  begin (this=0x250d900, j=<value optimized out>) at /usr/include/qt4/QtCore/qlist.h:254
#8  KDirListerCache::slotUpdateResult (this=0x250d900, j=<value optimized out>) at ../../kio/kio/kdirlister.cpp:1716
#9  0x00007f7fb24a2a93 in KDirListerCache::qt_metacall (this=0x250d900, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff211046b0) at ./kdirlister_p.moc:108
#10 0x00007f7fb089b5f8 in QMetaObject::activate (sender=0x241e500, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff211046b0) at kernel/qobject.cpp:3287
#11 0x00007f7fb0cf2d32 in KJob::result (this=<value optimized out>, _t1=0x241e500) at ./kjob.moc:194
#12 0x00007f7fb0cf2d70 in KJob::emitResult (this=0x241e500) at ../../kdecore/jobs/kjob.cpp:312
#13 0x00007f7fb2477c9b in KIO::SimpleJob::slotFinished (this=0x241e500) at ../../kio/kio/job.cpp:525
#14 0x00007f7fb247a805 in KIO::ListJob::slotFinished (this=0x241e500) at ../../kio/kio/job.cpp:2564
#15 0x00007f7fb247e469 in KIO::ListJob::qt_metacall (this=0x241e500, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff21104990) at ./jobclasses.moc:818
#16 0x00007f7fb089b5f8 in QMetaObject::activate (sender=0x27acc80, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3287
#17 0x00007f7fb251e531 in KIO::SlaveInterface::dispatch (this=<value optimized out>, _cmd=104, rawdata=...) at ../../kio/kio/slaveinterface.cpp:173
#18 0x00007f7fb251b4b5 in KIO::SlaveInterface::dispatch (this=0x27acc80) at ../../kio/kio/slaveinterface.cpp:89
#19 0x00007f7fb250ee8e in KIO::Slave::gotInput (this=0x27acc80) at ../../kio/kio/slave.cpp:348
#20 0x00007f7fb250f4dc in KIO::Slave::qt_metacall (this=0x27acc80, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff21104da0) at ./slave.moc:82
#21 0x00007f7fb089b5f8 in QMetaObject::activate (sender=0x27c5160, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x0) at kernel/qobject.cpp:3287
#22 0x00007f7fb2448ff7 in KIO::ConnectionPrivate::dequeue (this=0x29a0a40) at ../../kio/kio/connection.cpp:82
#23 0x00007f7fb244909d in KIO::Connection::qt_metacall (this=0x27c5160, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x2875100) at ./connection.moc:79
#24 0x00007f7fb089a49a in QObject::event (this=0x27c5160, e=<value optimized out>) at kernel/qobject.cpp:1226
#25 0x00007f7fb12459e4 in QApplicationPrivate::notify_helper (this=0x22c5750, receiver=0x27c5160, e=0x29c7530) at kernel/qapplication.cpp:4462
#26 0x00007f7fb124a3aa in QApplication::notify (this=<value optimized out>, receiver=0x27c5160, e=0x29c7530) at kernel/qapplication.cpp:4341
#27 0x00007f7fb1f64866 in KApplication::notify (this=0x7fff211057f0, receiver=0x27c5160, event=0x29c7530) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007f7fb088649c in QCoreApplication::notifyInternal (this=0x7fff211057f0, receiver=0x27c5160, event=0x29c7530) at kernel/qcoreapplication.cpp:731
#29 0x00007f7fb0889c25 in sendEvent (receiver=0x0, event_type=0, data=0x22755d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x22755d0) at kernel/qcoreapplication.cpp:1372
#31 0x00007f7fb08b1253 in sendPostedEvents (s=0x22c99c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=0x22c99c0) at kernel/qeventdispatcher_glib.cpp:277
#33 0x00007f7facbc9bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f7facbca3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f7facbca639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f7fb08b13ef in QEventDispatcherGlib::processEvents (this=0x2274db0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007f7fb12ecdfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f7fb0885882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007f7fb0885abc in QEventLoop::exec (this=0x7fff21105780, flags=...) at kernel/qeventloop.cpp:201
#40 0x00007f7fb0889ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x00007f7fb4729995 in kdemain (argc=1, argv=0x7fff21105d18) at ../../../dolphin/src/main.cpp:98
#42 0x00007f7fb4371eff in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, ubp_av=0x7fff21105d18, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff21105d08) at libc-start.c:226
#43 0x0000000000400659 in _start ()