dovecot - Sep 2011 - 2.1.alpha1: SIGSEGV on EXPUNGE

Hi,

I upgraded my test installation from Debian lenny with latest
2.0.14 auto builds to squeeze with v2.1.alpha1 (amd64) auto builds.
(From /var/log/mail.log:
  Sep  5 12:34:45 pressler dovecot: master: Dovecot v2.1.alpha1 starting up
(core dumps disabled)
No hg hash tag in log output anymore?)

Now the imap processes segfault on every EXPUNGE command:

Excerpt from telnet session:
0 store 1585:1585 flags \Deleted
* 1585 FETCH (FLAGS (\Deleted))
0 OK Store completed.
0 expunge

Log output:
Sep  5 15:40:59 pressler dovecot: imap(2580, lpmail): delete: box=INBOX,
uid=34722, msgid=<E1R0ZJW-00FrF7-0U at intern.SerNet.DE>, size=1980,
vsize=2031, from=Lutz Pressler <Lutz.Pressler at SerNet.DE>,
flags=(\Deleted)
Sep  5 15:41:22 pressler dovecot: imap(2580, lpmail): expunge: box=INBOX,
uid=34722, msgid=<E1R0ZJW-00FrF7-0U at intern.SerNet.DE>, size=1980,
vsize=2031, from=Lutz Pressler <Lutz.Pressler at SerNet.DE>,
flags=(\Deleted)
Sep  5 15:41:22 pressler dovecot: master: Error: service(imap): child 2580
killed with signal 11 (core dumps disabled)

Also happens with mail_log plugin disabled.

Any idea? Configuration on request (or tests with core dumps enabled).

Regards,
  Lutz

-- 
Lutz Pre?ler  <Lutz.Pressler at SerNet.DE>    http://www.SerNet.DE/
SerNet Service Network GmbH, Bahnhofsallee 1b, D-37081 G?ttingen
Tel.: +49-551-370000-2,      FAX: +49-551-370000-9
AG G?ttingen, HRB 2816,      GF: Dr. Johannes Loxen

On 5.9.2011, at 17.00, Lutz Pre?ler wrote:
> (From /var/log/mail.log:
>  Sep  5 12:34:45 pressler dovecot: master: Dovecot v2.1.alpha1 starting up
(core dumps disabled)
> No hg hash tag in log output anymore?)
You have exactly the alpha1 version without any further commits.
> Sep  5 15:41:22 pressler dovecot: master: Error: service(imap): child 2580
killed with signal 11 (core dumps disabled)
> 
> Any idea? Configuration on request (or tests with core dumps enabled).
gdb backtrace is always very helpful in figuring out crashes.
http://dovecot.org/bugreport.html