[Dovecot] dovecot 2.2.0 corrupts mailboxes?

[Timo Sirainen]

On 5.5.2013, at 3.56, Emmanuel Dreyfus <manu at netbsd.org> wrote:

> On april 17th, I upgraded from dovecot 2.1.13 to 2.2.0. Since that time,
> I had two different users that reported received three incident of
> messages that disapeared from their mailboxes. 
> 
> The mailbox format is mbox on local FFS filesystem (no NFS), and I use
> filesystem quotas (but both users are far from filling their quotas).
> When the message disapeared, it was always a whole rand of dates. On the
> last incident reported, the user also saw some message being duplicated
> many times. 

There are some locking code changes between v2.1 and v2.2, which I guess might be buggy. But I can't reproduce any corruption with stress testing. What's your doveconf -n output? Are you delivering mails via dovecot-lda or something external?

> Does that ring a bell? I am tempted to downgrade to 2.1.13. Does it
> makes sense? Is it safe to do so?

When downgrading, I recommend latest v2.1.