Application that crashed: kmail
Version of the application: 1.12.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
no details

 -- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
[KCrash Handler]
#5  KDirLister::url (this=0x4) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirlister.cpp:1964
#6  0x00007f127992e096 in KDirModelPrivate::expandAllParentsUntil (this=0x30b49e0, _url=<value optimized out>) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirmodel.cpp:168
#7  0x00007f1279930fc2 in KDirModel::expandToUrl (this=0x30b4370, url=@0x4) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirmodel.cpp:1077
#8  0x00007f126d20cdb5 in KDirOperator::setCurrentItem (this=0x30b3c50, url=@0x7fff85097900) at /build/buildd/kde4libs-4.3.2/kfile/kdiroperator.cpp:1712
#9  0x00007f126d21f599 in KFileWidgetPrivate::_k_slotLoadingFinished (this=0x30638c0) at /build/buildd/kde4libs-4.3.2/kfile/kfilewidget.cpp:1487
#10 0x00007f126d2250e7 in KFileWidget::qt_metacall (this=0x2925870, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff85097a00)
    at /build/buildd/kde4libs-4.3.2/obj-x86_64-linux-gnu/kfile/kfilewidget.moc:135
#11 0x00007f1277f1fea2 in QMetaObject::activate (sender=0x30b3c50, from_signal_index=<value optimized out>, to_signal_index=30, argv=0xc) at kernel/qobject.cpp:3113
#12 0x00007f126d204d6c in KDirOperator::Private::_k_slotCanceled (this=0x30b3420) at /build/buildd/kde4libs-4.3.2/kfile/kdiroperator.cpp:2264
#13 0x00007f126d20fec7 in KDirOperator::qt_metacall (this=0x30b3c50, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff85097b20)
    at /build/buildd/kde4libs-4.3.2/obj-x86_64-linux-gnu/kfile/kdiroperator.moc:241
#14 0x00007f1277f1fea2 in QMetaObject::activate (sender=0x30b4860, from_signal_index=<value optimized out>, to_signal_index=7, argv=0xc) at kernel/qobject.cpp:3113
#15 0x00007f12799173c8 in KDirListerCache::stop (this=0x3098200, lister=0x4, silent=false) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirlister.cpp:364
#16 0x00007f1279923b2d in ~KDirLister (this=0x7fff85097500) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirlister.cpp:1881
#17 0x00007f1277f18ec1 in QObjectPrivate::deleteChildren (this=0x30b4390) at kernel/qobject.cpp:1847
#18 0x00007f1277f214d7 in ~QObject (this=0x30b4370) at kernel/qobject.cpp:836
#19 0x00007f1277f000ad in ~QAbstractItemModel (this=0x30b4370) at kernel/qabstractitemmodel.cpp:1170
#20 0x00007f127992e56f in ~KDirModel (this=0x30b4370) at /build/buildd/kde4libs-4.3.2/kio/kio/kdirmodel.cpp:331
#21 0x00007f126d206ce2 in ~Private (this=0x30b3420) at /build/buildd/kde4libs-4.3.2/kfile/kdiroperator.cpp:350
#22 0x00007f126d206e6f in ~KDirOperator (this=0x30b3c50) at /build/buildd/kde4libs-4.3.2/kfile/kdiroperator.cpp:422
#23 0x00007f126d21ebe5 in ~KFileWidget (this=0x2925870) at /build/buildd/kde4libs-4.3.2/kfile/kfilewidget.cpp:107
#24 0x00007f1277f18ec1 in QObjectPrivate::deleteChildren (this=0x30345b0) at kernel/qobject.cpp:1847
#25 0x00007f1278660b22 in ~QWidget (this=0x7fff85097e70) at kernel/qwidget.cpp:1367
#26 0x00007f12799faacb in KFileDialog::getSaveUrl (dir=<value optimized out>, filter=@0x7fff85098580, parent=<value optimized out>, caption=@0x7fff85098570)
    at /build/buildd/kde4libs-4.3.2/kio/kfile/kfiledialog.cpp:735
#27 0x00007f127bdbc2c8 in KMSaveAttachmentsCommand::slotSaveAll () from /usr/lib/libkmailprivate.so.4
#28 0x00007f127bdbcdad in KMSaveAttachmentsCommand::qt_metacall () from /usr/lib/libkmailprivate.so.4
#29 0x00007f1277f1fea2 in QMetaObject::activate (sender=0x2ad6920, from_signal_index=<value optimized out>, to_signal_index=13, argv=0xc) at kernel/qobject.cpp:3113
#30 0x00007f127bda3039 in KMLoadPartsCommand::execute () from /usr/lib/libkmailprivate.so.4
#31 0x00007f127bdbd5ec in KMLoadPartsCommand::slotStart () from /usr/lib/libkmailprivate.so.4
#32 0x00007f127bdaf1c2 in KMCommand::qt_metacall () from /usr/lib/libkmailprivate.so.4
#33 0x00007f127bdaf376 in KMLoadPartsCommand::qt_metacall () from /usr/lib/libkmailprivate.so.4
#34 0x00007f1277f1fea2 in QMetaObject::activate (sender=0x2cb4930, from_signal_index=<value optimized out>, to_signal_index=4, argv=0xc) at kernel/qobject.cpp:3113
#35 0x00007f1277f2514f in QSingleShotTimer::timerEvent (this=0x2cb4930) at kernel/qtimer.cpp:298
#36 0x00007f1277f1a263 in QObject::event (this=0x2cb4930, e=0x4) at kernel/qobject.cpp:1075
#37 0x00007f1278613f4d in QApplicationPrivate::notify_helper (this=0x13e42e0, receiver=0x2cb4930, e=0x7fff85099090) at kernel/qapplication.cpp:4056
#38 0x00007f127861c18a in QApplication::notify (this=0x7fff85099510, receiver=0x2cb4930, e=0x7fff85099090) at kernel/qapplication.cpp:4021
#39 0x00007f127ca81abb in KApplication::notify (this=0x7fff85099510, receiver=0x2cb4930, event=0x7fff85099090) at /build/buildd/kde4libs-4.3.2/kdeui/kernel/kapplication.cpp:302
#40 0x00007f1277f0a6ac in QCoreApplication::notifyInternal (this=0x7fff85099510, receiver=0x2cb4930, event=0x7fff85099090) at kernel/qcoreapplication.cpp:610
#41 0x00007f1277f37516 in QTimerInfoList::activateTimers (this=0x13c4320) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#42 0x00007f1277f33b2d in timerSourceDispatch (source=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:165
#43 0x00007f126ede820a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#44 0x00007f126edeb8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#45 0x00007f126edeba7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#46 0x00007f1277f33a8f in QEventDispatcherGlib::processEvents (this=0x138c6d0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#47 0x00007f12786acbdf in QGuiEventDispatcherGlib::processEvents (this=0x7fff85097500, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#48 0x00007f1277f08f42 in QEventLoop::processEvents (this=<value optimized out>, flags={i = -2062970112}) at kernel/qeventloop.cpp:149
#49 0x00007f1277f09314 in QEventLoop::exec (this=0x7fff85099340, flags={i = -2062970032}) at kernel/qeventloop.cpp:201
#50 0x00007f1277f0b5e4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#51 0x00000000004030db in _start ()

Reported using DrKonqi