[Dovecot] Unexpectedly lost message

Hi,

We're having some issues with certain messages not being able to be read by Dovecot. Can anyone tell me under what conditions the error messages below could be caused?

Aug 17 15:58:26 server.tc.umn.edu imap(user): : [ID 887855 local6.error] Next message unexpectedly lost from 1913995 Aug 17 15:58:26 server.tc.umn.edu last message repeated 2 times Aug 17 15:58:26 server.tc.umn.edu imap(user): : [ID 107833 local6.crit] Panic: file istream.c: line 76: assertion failed: (_stream->skip != _stream->pos) Aug 17 15:58:26 server.tc.umn.edu dovecot: [ID 684838 local6.error] child 13169 (imap) killed with signal 6

Thanks,

-- Tom Goerger University of Minnesota - Internet Services