Thanx I'll try the patch as soon as possible and I'll let you know. It is indeed very rare. We're only seeing 4-5 corruptions in about 13 million logins per day. I've been trying to convince our design team that we should move to maildir, but the truth is that it's quite a change, and we're way too busy to deal with everything else AND a migration from mbox to maildir.
D. On Mon 24/06/2013 13:16, Timo Sirainen wrote: > On 19.6.2013, at 16.00, Dimos Alevizos <dalev...@otenet.gr> wrote: > > > we're having some problems with our dovecot setup. > > I've seen similar problems in the mailing list some years ago but alas > > wasn't able to find a solution. > > > > Our setup is as follows : > > An MX farm (postfix) sends mails via LMTP to a director farm (dovecot > > 2.1.12) which proxies pop3/imap/lmtp traffic to a dovecot farm (dovecot > > 2.1.16). > > All mailboxes and indexes are on NFS and all servers are Centos. > > > > The problem is that at times we see mailboxes (all of them are in mbox > > format) beginning with FFrom or FrFrom and of course dovecot says it's not > > a valid mbox file. > > This is quite an old bug, but it happens rarely enough that I haven't been > able to reproduce and fix it. Actually people hadn't complained about it for > a long time now, so I had assumed it had somehow gotten fixed already. > > With the attached debug patch it should crash instead of (completely) > corrupting the mbox file. Debugging the resulting core file with gdb could be > useful in figuring this out. > > Although I wouldn't recommend mbox format for any big installation anyway.. > > >
