Version:            (using KDE KDE 3.4.0)
Installed from:    Slackware Packages
OS:                Linux

At one of my local folders which is associated with a mailing list, when I try to delete messages that have expired (Folder -> Expire Folder) Kmail crashes. 

Here is the backtrace from the KDE Crash Handler:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 19454)]
[KCrash handler]
#5  0x4036e722 in KMMoveCommand::execute ()
   from /opt/kde/lib/libkmailprivate.so
#6  0x403651ea in KMCommand::slotPostTransfer ()
   from /opt/kde/lib/libkmailprivate.so
#7  0x4035e582 in KMCommand::qt_invoke () from /opt/kde/lib/libkmailprivate.so
#8  0x4036241d in KMMenuCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so
#9  0x403628a1 in KMMoveCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so
#10 0x41ba91ec in QObject::activate_signal ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#11 0x4035e3ea in KMCommand::messagesTransfered ()
   from /opt/kde/lib/libkmailprivate.so
#12 0x4036523a in KMCommand::transferSelectedMsgs ()
   from /opt/kde/lib/libkmailprivate.so
#13 0x4036500b in KMCommand::slotStart () from /opt/kde/lib/libkmailprivate.so
#14 0x4035e56c in KMCommand::qt_invoke () from /opt/kde/lib/libkmailprivate.so
#15 0x4036241d in KMMenuCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so
#16 0x403628a1 in KMMoveCommand::qt_invoke ()
   from /opt/kde/lib/libkmailprivate.so
#17 0x41ba91ec in QObject::activate_signal ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#18 0x41ecc16a in QSignal::signal () from /usr/lib/qt/lib/libqt-mt.so.3
#19 0x41bc33cd in QSignal::activate () from /usr/lib/qt/lib/libqt-mt.so.3
#20 0x41bcad03 in QSingleShotTimer::event () from /usr/lib/qt/lib/libqt-mt.so.3
#21 0x41b4c94f in QApplication::internalNotify ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#22 0x41b4bf4e in QApplication::notify () from /usr/lib/qt/lib/libqt-mt.so.3
#23 0x416d44f5 in KApplication::notify () from /opt/kde/lib/libkdecore.so.4
#24 0x41b3c185 in QEventLoop::activateTimers ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#25 0x41af68eb in QEventLoop::processEvents ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#26 0x41b5ed08 in QEventLoop::enterLoop () from /usr/lib/qt/lib/libqt-mt.so.3
#27 0x41b5ebb8 in QEventLoop::exec () from /usr/lib/qt/lib/libqt-mt.so.3
#28 0x41b4cba1 in QApplication::exec () from /usr/lib/qt/lib/libqt-mt.so.3
#29 0x0804a404 in ?? ()
#30 0xbffff1e0 in ?? ()
#31 0xbffff0f0 in ?? ()
#32 0x00000000 in ?? ()
#33 0x00000000 in ?? ()
#34 0x41feacc0 in vtable for QGArray () from /usr/lib/qt/lib/libqt-mt.so.3
#35 0x08159d48 in ?? ()
#36 0x424b77c2 in malloc () from /lib/libc.so.6
#37 0x4246b469 in __libc_start_main () from /lib/libc.so.6
#38 0x0804a161 in ?? ()