Version:           1.8.1 (using KDE KDE 3.4.1)
Installed from:    Fedora RPMs
OS:                Linux

KMail crashes on invoking a filter or marking a message as spam. See the debug info below.

Using host libthread_db library "/lib/tls/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -151179136 (LWP 19055)]
[KCrash handler]
#4  0x059fde1e in QGDict::look_string ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#5  0x002e3a9a in KMHeaders::msgRemoved () from /usr/lib/libkmailprivate.so
#6  0x002ee2a4 in KMHeaders::qt_invoke () from /usr/lib/libkmailprivate.so
#7  0x0574578c in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#8  0x00320bb7 in KMFolder::msgRemoved () from /usr/lib/libkmailprivate.so
#9  0x003213a6 in KMFolder::qt_emit () from /usr/lib/libkmailprivate.so
#10 0x057457c1 in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#11 0x0033b637 in FolderStorage::msgRemoved ()
   from /usr/lib/libkmailprivate.so
#12 0x00338596 in FolderStorage::take () from /usr/lib/libkmailprivate.so
#13 0x003cd99c in KMFolderMaildir::take () from /usr/lib/libkmailprivate.so
#14 0x0031eae1 in KMFolder::take () from /usr/lib/libkmailprivate.so
#15 0x0036351e in KMFilterMgr::endFiltering ()
   from /usr/lib/libkmailprivate.so
#16 0x00363ab8 in KMFilterMgr::process () from /usr/lib/libkmailprivate.so
#17 0x002e418b in KMHeaders::slotFilterMsg () from /usr/lib/libkmailprivate.so
#18 0x096b3bd8 in ?? ()
#19 0x00000004 in ?? ()
#20 0x005b6480 in ?? () from /usr/lib/libkmailprivate.so
#21 0x005da934 in KMail::MessageProperty::sHandlers ()
   from /usr/lib/libkmailprivate.so
#22 0x0804bcec in KApplication::KApp ()
#23 0xfeea9788 in ?? ()
#24 0x00345d30 in KMail::MessageProperty::complete ()
   from /usr/lib/libkmailprivate.so