Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.2.98 (KDE 4.2.98 (KDE 4.3 RC3))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-13-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Was active in a catalog with rar-files. Moved to another catalog. Entered CLI to unrar the former rar-files. When unraring was done I returned to Dolphin pushing the "UP" button and then entering the catalog with the rar files and the new avi file. 

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[Current thread is 0 (LWP 4497)]

Thread 2 (Thread 0xb403cb90 (LWP 4553)):
#0  0xb8056430 in __kernel_vsyscall ()
#1  0xb616d412 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb6512344 in pthread_cond_timedwait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb36afae3 in ?? () from /usr/lib/libxine.so.1
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 1 (Thread 0xb5ce5700 (LWP 4497)):
[KCrash Handler]
#6  0xb679d309 in QUrl (this=0xbfc71434, other=@0x8) at io/qurl.cpp:3936
#7  0xb73e9d89 in KUrl (this=0xbfc71434, _u=@0x8) at /build/buildd/kde4libs-4.2.98a/kdecore/io/kurl.cpp:468
#8  0xb7ed3a5e in KFileItem::url (this=0x9032978) at /build/buildd/kde4libs-4.2.98a/kio/kio/kfileitem.cpp:1268
#9  0xb7ec2b2f in KDirModel::indexForItem (this=0x8f33fc0, item=@0x9032978) at /build/buildd/kde4libs-4.2.98a/kio/kio/kdirmodel.cpp:919
#10 0xb7da6f32 in KFilePreviewGenerator::Private::orderItems (this=0x8f48788, items=@0xbfc71538) at /build/buildd/kde4libs-4.2.98a/kfile/kfilepreviewgenerator.cpp:1003
#11 0xb7daa9b3 in KFilePreviewGenerator::Private::updateIcons (this=0x8f48788, items=@0xbfc71588) at /build/buildd/kde4libs-4.2.98a/kfile/kfilepreviewgenerator.cpp:501
#12 0xb7daac28 in KFilePreviewGenerator::Private::delayedIconUpdate (this=0x8f48788) at /build/buildd/kde4libs-4.2.98a/kfile/kfilepreviewgenerator.cpp:1068
#13 0xb7dabb6e in KFilePreviewGenerator::qt_metacall (this=0x8f48670, _c=QMetaObject::InvokeMetaMethod, _id=10, _a=0xbfc71638)
    at /build/buildd/kde4libs-4.2.98a/obj-i486-linux-gnu/kfile/kfilepreviewgenerator.moc:95
#14 0xb67ffa58 in QMetaObject::activate (sender=0x8f46600, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3120
#15 0xb68006e2 in QMetaObject::activate (sender=0x8f46600, m=0xb68dc904, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3194
#16 0xb683b4d7 in QTimer::timeout (this=0x8f46600) at .moc/release-shared/moc_qtimer.cpp:128
#17 0xb68054ae in QTimer::timerEvent (this=0x8f46600, e=0xbfc71abc) at kernel/qtimer.cpp:261
#18 0xb67f9f0f in QObject::event (this=0x8f46600, e=0xbfc71abc) at kernel/qobject.cpp:1082
#19 0xb6a00bcc in QApplicationPrivate::notify_helper (this=0x8d584e8, receiver=0x8f46600, e=0xbfc71abc) at kernel/qapplication.cpp:4057
#20 0xb6a08ede in QApplication::notify (this=0xbfc71d54, receiver=0x8f46600, e=0xbfc71abc) at kernel/qapplication.cpp:3604
#21 0xb776e5cd in KApplication::notify (this=0xbfc71d54, receiver=0x8f46600, event=0xbfc71abc) at /build/buildd/kde4libs-4.2.98a/kdeui/kernel/kapplication.cpp:302
#22 0xb67e97ab in QCoreApplication::notifyInternal (this=0xbfc71d54, receiver=0x8f46600, event=0xbfc71abc) at kernel/qcoreapplication.cpp:610
#23 0xb6818b31 in QTimerInfoList::activateTimers (this=0x8d56194) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#24 0xb6815280 in timerSourceDispatch (source=0x8d56160) at kernel/qeventdispatcher_glib.cpp:164
#25 0xb5f67b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#26 0xb5f6b0eb in ?? () from /usr/lib/libglib-2.0.so.0
#27 0xb5f6b268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#28 0xb68151d8 in QEventDispatcherGlib::processEvents (this=0x8d35d10, flags={i = -1077470152}) at kernel/qeventdispatcher_glib.cpp:324
#29 0xb6aa2765 in QGuiEventDispatcherGlib::processEvents (this=0x8d35d10, flags={i = -1077470104}) at kernel/qguieventdispatcher_glib.cpp:202
#30 0xb67e7dda in QEventLoop::processEvents (this=0xbfc71ce0, flags={i = -1077470040}) at kernel/qeventloop.cpp:149
#31 0xb67e821a in QEventLoop::exec (this=0xbfc71ce0, flags={i = -1077469976}) at kernel/qeventloop.cpp:200
#32 0xb67ea6c9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#33 0xb6a00a47 in QApplication::exec () at kernel/qapplication.cpp:3526
#34 0x0807aa5f in _start ()

Reported using DrKonqi