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.

You're right. I should have looked closer at the log entries. I went to my maildir and ran a find . -name "dovecot.index*" -print0 | xargs -0 rm -f, which got rid of all the index files, but left the uidlists alone. That worked. The 64 bit dovecot is now running fine. So I guess we know that a 32 bit and a 64 bit dovecot can't both use the same mail store.

Doesn't the dovecot front page talk about sanity checks being done to prevent this kind of stuff? This makes dovecot seem brittle. Anyway, thanks for the help.

cheers, Scott