[Dovecot] Assertion failed

[Chris Wakelin]

Is this happening with all users, or just a significant minority that
didn't include your testers?

If it happens to a minority, could you send us/me an anonymised copy of
a (hopefully small) failing mbox (there's a tool provided in
http://www.dovecot.org/tools/mboxcrypt.pl for doing this) and I'll try
opening it with our Dovecot.

Did you compile Dovecot yourself or use a package? If the former, what
configure options did you use?

Best Wishes,
Chris

Jonathan Knight wrote:
> 
> We're in a bit of a panic here as we're getting a lot of errors along
> the lines of:
> 
> May  2 12:39:00 lenny dovecot: IMAP(XXXXX): file mbox-sync-rewrite.c:
> line 106 (mbox_sync_headers_add_space): assertion failed: (start_pos <
> data_size)
> 
> We didn't see this until our mail servers went under a full load and now
> we've trashed the ability of nearly all our users to read email.
> 
> We saw this first under 1.0Beta3 and we've tried building 1.0Beta7 and
> its made no difference.  I've tried fiddling with the "dirty" settings
> for the indices and banning mmap to see if there's any way way of
> avoiding the broken code, but with no luck.
> 
> We're running White Box EL4 (2.6 Linux kernel)
> 
> Does anyone know a workaround or whether there is an older version that
> doesn't have the bug?  We desperately need to get an email service
> running and I don't want to go back to (shudder) UW-imap if I can help
> it but my options are limited at the moment.
> 


-- 
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Christopher Wakelin,                           c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading,  Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK              Fax: +44 (0)118 975 3094