Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-10-generic i686
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
Just looking for the size of my Homefolder in the Properties, after closing Plasma-Workspace crashed.

 -- Backtrace:
Application: Plasma-Arbeitsfläche (kdeinit4), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7ff9700 (LWP 2128))]

Thread 2 (Thread 0xace76b70 (LWP 2131)):
#0  0x00fb6422 in __kernel_vsyscall ()
#1  0x00812e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0x0093a78d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0x0015fe57 in QWaitConditionPrivate::wait (this=0x856e680, mutex=0x856e67c, time=4294967295) at thread/qwaitcondition_unix.cpp:87
#4  QWaitCondition::wait (this=0x856e680, mutex=0x856e67c, time=4294967295) at thread/qwaitcondition_unix.cpp:159
#5  0x01845922 in QHostInfoAgent::run (this=0x856e670) at kernel/qhostinfo.cpp:260
#6  0x0015ee22 in QThreadPrivate::start (arg=0x856e670) at thread/qthread_unix.cpp:188
#7  0x0080e80e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0x0092d7ee in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7ff9700 (LWP 2128)):
[KCrash Handler]
#6  KDirModelNode::rowNumber (this=0x0) at ../../kio/kio/kdirmodel.cpp:120
#7  0x00c2d7d3 in KDirModelPrivate::indexForNode (this=0x8698a20, node=0x0, rowNumber=0) at ../../kio/kio/kdirmodel.cpp:284
#8  0x00c325fb in KDirModelPrivate::_k_slotNewItems (this=0x8698a20, directoryUrl=..., items=...) at ../../kio/kio/kdirmodel.cpp:377
#9  0x00c33b07 in KDirModel::qt_metacall (this=0x8664c70, _c=QMetaObject::InvokeMetaMethod, _id=22, _a=0xbfc3ad44) at ./kdirmodel.moc:82
#10 0x00265253 in QMetaObject::activate (sender=0x8ab31e0, from_signal_index=14, to_signal_index=14, argv=0xbfc3ad44) at kernel/qobject.cpp:3113
#11 0x00265eb2 in QMetaObject::activate (sender=0x8ab31e0, m=0xdd603c, local_signal_index=10, argv=0xbfc3ad44) at kernel/qobject.cpp:3187
#12 0x00c161f9 in KDirLister::itemsAdded (this=0x8ab31e0, _t1=..., _t2=...) at ./kdirlister.moc:268
#13 0x00c1728e in KDirLister::Private::emitItems (this=0x8ab32d0) at ../../kio/kio/kdirlister.cpp:2303
#14 0x00c22577 in KDirListerCache::processPendingUpdates (this=0x86b6ab0) at ../../kio/kio/kdirlister.cpp:1796
#15 0x00c22e3f in KDirListerCache::slotFilesChanged (this=0x86b6ab0, fileList=...) at ../../kio/kio/kdirlister.cpp:850
#16 0x00c29635 in KDirListerCache::qt_metacall (this=0x86b6ab0, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xbfc3b048) at ./kdirlister_p.moc:93
#17 0x00265253 in QMetaObject::activate (sender=0x870ee00, from_signal_index=8, to_signal_index=8, argv=0xbfc3b048) at kernel/qobject.cpp:3113
#18 0x00265eb2 in QMetaObject::activate (sender=0x870ee00, m=0xdd6294, local_signal_index=3, argv=0xbfc3b048) at kernel/qobject.cpp:3187
#19 0x00c35293 in OrgKdeKDirNotifyInterface::FilesChanged (this=0x870ee00, _t1=...) at ./kdirnotify.moc:118
#20 0x00c35465 in OrgKdeKDirNotifyInterface::qt_metacall (this=0x870ee00, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0xbfc3b1cc) at ./kdirnotify.moc:82
#21 0x00e017b4 in QDBusConnectionPrivate::deliverCall (this=0x829c470, object=0x870ee00, msg=..., metaTypes=..., slotIdx=8) at qdbusintegrator.cpp:891
#22 0x00e09197 in QDBusCallDeliveryEvent::placeMetaCall(QObject*) () from /usr/lib/libQtDBus.so.4
#23 0x0025f5ee in QObject::event (this=0x870ee00, e=0x88c5880) at kernel/qobject.cpp:1111
#24 0x03c44f44 in QApplicationPrivate::notify_helper (this=0x82c26a8, receiver=0x870ee00, e=0x88c5880) at kernel/qapplication.cpp:4056
#25 0x03c4c66c in QApplication::notify (this=0x829b890, receiver=0x870ee00, e=0x88c5880) at kernel/qapplication.cpp:3603
#26 0x01189f8a in KApplication::notify (this=0x829b890, receiver=0x870ee00, event=0x88c5880) at ../../kdeui/kernel/kapplication.cpp:302
#27 0x0024f6bb in QCoreApplication::notifyInternal (this=0x829b890, receiver=0x870ee00, event=0x88c5880) at kernel/qcoreapplication.cpp:610
#28 0x002502a2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x8249e48) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#29 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8249e48) at kernel/qcoreapplication.cpp:1247
#30 0x0025046d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#31 0x0027a3ef in QCoreApplication::sendPostedEvents (s=0x82c4710) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#32 postEventSourceDispatch (s=0x82c4710) at kernel/qeventdispatcher_glib.cpp:210
#33 0x009f1f18 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#34 0x009f57c0 in ?? () from /usr/lib/libglib-2.0.so.0
#35 0x009f58f3 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#36 0x0027a01c in QEventDispatcherGlib::processEvents (this=0x82c2468, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#37 0x03ce5ad5 in QGuiEventDispatcherGlib::processEvents (this=0x82c2468, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#38 0x0024dc69 in QEventLoop::processEvents (this=0xbfc3b934, flags=) at kernel/qeventloop.cpp:149
#39 0x0024e0ba in QEventLoop::exec (this=0xbfc3b934, flags=...) at kernel/qeventloop.cpp:201
#40 0x0025052f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#41 0x03c44dc7 in QApplication::exec () at kernel/qapplication.cpp:3525
#42 0x0149283d in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#43 0x0804de01 in launch (argc=<value optimized out>, _name=<value optimized out>, args=<value optimized out>, cwd=0x0, envc=0, envs=0x82655e8 "", reset_env=false, tty=0x0, avoid_loops=false, 
    startup_id_str=0x80511c5 "0") at ../../kinit/kinit.cpp:677
#44 0x0804ea55 in handle_launcher_request (sock=<value optimized out>, who=<value optimized out>) at ../../kinit/kinit.cpp:1169
#45 0x0804eecc in handle_requests (waitForPid=<value optimized out>) at ../../kinit/kinit.cpp:1362
#46 0x0804fbcf in main (argc=2, argv=0xbfc3c194, envp=0xbfc3c1a0) at ../../kinit/kinit.cpp:1793

Reported using DrKonqi