[Dovecot] Assertion failed

[Jonathan Knight]

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.

-- 
  ______    J.Knight at kis.keele.ac.uk     Jonathan Knight,
    /                                    Keele Information Services
   / _   __ Telephone: +44 1782 583478   University of Keele, Keele,	
(_/ (_) / / Fax      : +44 1782 713082   Staffordshire.  ST5 5BG.  U.K.