[Dovecot] (no subject)

[David Jonas]

On Thu, 2006-08-03 at 15:39 -0400, Scott Zahn wrote:
> On Thu, August 3, 2006 15:28, David Jonas wrote:
> > On Thu, 2006-08-03 at 15:07 -0400, Scott Zahn wrote:
> >> Hey everyone, I'm trying version 1.0rc2, via the rpm at ATrpms.  I'm running on CentOS
> >> 4.3 on an Opteron system.  I have this running stably on a 32 bit system, but I'm
> >> crashing constantly on a 64 bit system.
> >>
> >> Here's what I'm getting in my mail logs when I try to log in via IMAP:
> >>
> >> Aug  3 15:01:21 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: IMAP(scottz): file index-mail.c: line 105
> >> (index_mail_get_fixed_field): assertion failed: (buffer_get_used_size(buf) ==
> >> data_size)
> >> Aug  3 15:01:22 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: child 3208 (imap) killed with signal 6
> >> Aug  3 15:01:22 lisa dovecot: IMAP(scottz): file index-mail.c: line 105
> >> (index_mail_get_fixed_field): assertion failed: (buffer_get_used_size(buf) ==
> >> data_size)
> >> Aug  3 15:01:22 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: child 3210 (imap) killed with signal 6
> >> Aug  3 15:01:22 lisa dovecot: IMAP(scottz): file index-mail.c: line 105
> >> (index_mail_get_fixed_field): assertion failed: (buffer_get_used_size(buf) ==
> >> data_size)
> >> Aug  3 15:01:22 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: child 3212 (imap) killed with signal 6
> >> Aug  3 15:01:22 lisa dovecot: IMAP(scottz): file mail-cache-transaction.c: line 709
> >> (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size ==
> >> data_size)
> >> Aug  3 15:01:22 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: IMAP(scottz): file mail-cache-transaction.c: line 709
> >> (mail_cache_add): assertion failed: (fixed_size == (unsigned int)-1 || fixed_size ==
> >> data_size)
> >> Aug  3 15:01:22 lisa dovecot: imap-login: Login: user=<scottz>, method=PLAIN,
> >> rip=::ffff:192.168.1.183, lip=::ffff:192.168.1.21
> >> Aug  3 15:01:22 lisa dovecot: child 3214 (imap) killed with signal 6
> >> Aug  3 15:01:22 lisa dovecot: child 3218 (imap) killed with signal 6
> >
> > I believe this has to do with how the index files are written, with a 32bit or 64
> > bit offset. If you remove all the index files, etc from the mailbox when you switch
> > between the two, or compile with the specific offset, it should work
> > fine.
> >
> 
> Well, shoot.  If I remove the index files and let dovecot rebuild them, won't that lead
> to my users re-downloading their entire inboxes if they're using POP3?

Depends on how you have the UIDL format configured. Personally I use
maildirs and have the format be the filenames so I can continue to use
qmail-pop3d (for now). If you're using the default, yeah, I think that's
a generated id.

Another option would be to recompile dovecot on the 64bit system with
the --with-file-offset-size=32 instead of the RPMs. It is really  an
easy build. Personally, first I'd try removing the index files for my
own account and see if my mail gets re-downloaded. 

Please note that I've done very little on 64bit systems, so these are
mostly guesses. But I have compiled with --with-file-offset-size=64 and
had to remove my index files to avoid that crash.

> -Scott
>