Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-19-generic i686
Distribution: Estobuntu 9.10.1

What I was doing when the application crashed:
user(not system admin) home dir is on mounted drive. Right click on user home dir, changed permissions and clicked ok. 

 -- Backtrace:
Application: Plasma töötsoon (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb76f7700 (LWP 2309))]

Thread 2 (Thread 0xab696b70 (LWP 2310)):
#0  0x00656422 in __kernel_vsyscall ()
#1  0x005f7e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x009b487d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x00191e67 in QWaitConditionPrivate::wait (this=0x9206e50, mutex=0x9206e4c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x9206e50, mutex=0x9206e4c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x06612922 in QHostInfoAgent::run (this=0x9206e40) at kernel/qhostinfo.cpp:260
#6  0x00190e32 in QThreadPrivate::start (arg=0x9206e40) at thread/qthread_unix.cpp:188
#7  0x005f380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x009a78de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb76f7700 (LWP 2309)):
[KCrash Handler]
#6  KDirModelNode::rowNumber (this=0x0) at ../../kio/kio/kdirmodel.cpp:120
#7  0x00756a43 in KDirModelPrivate::indexForNode (this=0x9600550, node=0x0, rowNumber=0) at ../../kio/kio/kdirmodel.cpp:284
#8  0x0075b86b in KDirModelPrivate::_k_slotNewItems (this=0x9600550, directoryUrl=..., items=...) at ../../kio/kio/kdirmodel.cpp:377
#9  0x0075cd77 in KDirModel::qt_metacall (this=0x95c7bb0, _c=QMetaObject::InvokeMetaMethod, _id=22, _a=0xbff403d4) at ./kdirmodel.moc:82
#10 0x02babc82 in ?? () from /usr/lib/kde4/plasma_applet_quickaccess.so
#11 0x00297263 in QMetaObject::activate (sender=0x945d630, from_signal_index=14, to_signal_index=14, argv=0xbff403d4) at kernel/qobject.cpp:3113
#12 0x00297ec2 in QMetaObject::activate (sender=0x945d630, m=0x8d103c, local_signal_index=10, argv=0xbff403d4) at kernel/qobject.cpp:3187
#13 0x0073f469 in KDirLister::itemsAdded (this=0x945d630, _t1=..., _t2=...) at ./kdirlister.moc:268
#14 0x007404fe in KDirLister::Private::emitItems (this=0x95c8428) at ../../kio/kio/kdirlister.cpp:2303
#15 0x0074b7e7 in KDirListerCache::processPendingUpdates (this=0x8f881a8) at ../../kio/kio/kdirlister.cpp:1796
#16 0x0074c0af in KDirListerCache::slotFilesChanged (this=0x8f881a8, fileList=...) at ../../kio/kio/kdirlister.cpp:850
#17 0x007528a5 in KDirListerCache::qt_metacall (this=0x8f881a8, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbff406d8) at ./kdirlister_p.moc:93
#18 0x00297263 in QMetaObject::activate (sender=0x9029278, from_signal_index=8, to_signal_index=8, argv=0xbff406d8) at kernel/qobject.cpp:3113
#19 0x00297ec2 in QMetaObject::activate (sender=0x9029278, m=0x8d1294, local_signal_index=3, argv=0xbff406d8) at kernel/qobject.cpp:3187
#20 0x0075e503 in OrgKdeKDirNotifyInterface::FilesChanged (this=0x9029278, _t1=...) at ./kdirnotify.moc:118
#21 0x0075e6d5 in OrgKdeKDirNotifyInterface::qt_metacall (this=0x9029278, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbff4085c) at ./kdirnotify.moc:82
#22 0x028d37b4 in QDBusConnectionPrivate::deliverCall (this=0x8ad5fa8, object=0x9029278, msg=..., metaTypes=..., slotIdx=8) at qdbusintegrator.cpp:891
#23 0x028db197 in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib/libQtDBus.so.4
#24 0x002915fe in QObject::event (this=0x9029278, e=0x9af8000) at kernel/qobject.cpp:1111
#25 0x035e7f54 in QApplicationPrivate::notify_helper (this=0x8afc1b0, receiver=0x9029278, e=0x9af8000) at kernel/qapplication.cpp:4056
#26 0x035ef67c in QApplication::notify (this=0x8ad5268, receiver=0x9029278, e=0x9af8000) at kernel/qapplication.cpp:3603
#27 0x00e57bfa in KApplication::notify (this=0x8ad5268, receiver=0x9029278, event=0x9af8000) at ../../kdeui/kernel/kapplication.cpp:302
#28 0x002816cb in QCoreApplication::notifyInternal (this=0x8ad5268, receiver=0x9029278, event=0x9af8000) at kernel/qcoreapplication.cpp:610
#29 0x002822b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8a86e48) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8a86e48) at kernel/qcoreapplication.cpp:1247
#31 0x0028247d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#32 0x002ac3ff in QCoreApplication::sendPostedEvents (s=0x8afe318) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#33 postEventSourceDispatch (s=0x8afe318) at kernel/qeventdispatcher_glib.cpp:210
#34 0x01db4e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#35 0x01db8730 in ?? () from /lib/libglib-2.0.so.0
#36 0x01db8863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#37 0x002ac02c in QEventDispatcherGlib::processEvents (this=0x8afbfa0, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#38 0x03688be5 in QGuiEventDispatcherGlib::processEvents (this=0x8afbfa0, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#39 0x0027fc79 in QEventLoop::processEvents (this=0xbff40fc4, flags=) at kernel/qeventloop.cpp:149
#40 0x002800ca in QEventLoop::exec (this=0xbff40fc4, flags=...) at kernel/qeventloop.cpp:201
#41 0x0028253f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#42 0x035e7dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#43 0x081f080d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#44 0x0804dde1 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x8a9d7f0 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511a5 "0") at ../../kinit/kinit.cpp:677
#45 0x0804ea35 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#46 0x0804eeac in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#47 0x0804fbaf in main (argc=2, argv=0xbff41824, envp=0xbff41830) at ../../kinit/kinit.cpp:1793

This bug may be a duplicate of or related to bug 217783

Reported using DrKonqi