[Dovecot] imap indexing error when moving multiple mails

[Hauke Fath]

Hi,

I've got an 'interesting' problem with a dovecot 0.99.10.4 setup on 
NetBSD/i386 1.6ZK.

dovecot is serving imap only at the moment, using mbox format 
mailboxes. '/etc/dovecot.conf' is pretty vanilla - among the modified 
settings,

mail_read_mmaped = yes
maildir_check_content_changes = yes
mbox_lock = fcntl

could be relevant. Anyway - from time to time when I move a bunch of 
mails ( < 1) from a mailbox to another (or to the trash), the client 
(I've seen it with Eudora 6 on a  Mac, with Mozilla 1.6 and Sylpheed 
on NetBSD) reports an "internal error" and the maillog shows

Mar 25 14:07:33 bounce imap-login: Login: hf [130.83.xxx.yyy]
Mar 25 14:07:44 bounce imap(hf): Error indexing mbox file 
/home/hf/Mail/Leute/Marc Wirth: LF not found where expected
Mar 25 14:09:30 bounce imap(hf): Error indexing mbox file 
/home/hf/Mail/Leute/Marc Wirth: LF not found where expected


which, if I retry the operation to another time, does not persist and 
is not strictly repeatable.

I've set the number of allowed concurrent connections to '1' on the 
client, but that doesn't help.

Is there anything obvious that I overlooked, or have I tripped over a 
genuine bug?

	hauke

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