Hi Timo,

Now it is a little bit late as I had to switch off 1.1.2 and revert to 1.0.RC2, where I don't see these errors any more. The server is in kind of production and I cannot just swap versions and disable my beloved users... at the moment.

1. The first is right, 1.1.2 complains about something after 1.0.RC2, but every folder is listed just once in the log, what indicates self healing.

2. Hard to replicate, you need to have multiple users accessing same folders, folders are auto-mounted through NFS, mail agent Thunderbird and/or Outlook, effective UID/GID gives write permissions only on 'drwxrws---' folders thorugh SGID, otherwise only owner has write permissions, therefore often building indices in memory. Thunderbird seems to go into endless loop while trying to rebuild indices, where it fails to respond. The section below repeats endlessly until dovecot + TB are killed.

dovecot: Aug 28 16:58:22 Error: IMAP(user): Log synchronization error at seq=1,offset=24 for /home/user/mailarchive/Facilities/Cleaning/.imap/Waste &- Recycling/dovecot.index: Broken extension introduction: Record field points outside record size (0+16 > 8) dovecot: Aug 28 16:58:22 Warning: IMAP(user): fscking index file /home/user/mailarchive/Facilities/Cleaning/.imap/Waste &- Recycling/dovecot.index dovecot: Aug 28 16:58:23 Warning: IMAP(user): fscking index file (in-memory index) dovecot: Aug 28 16:58:23 Error: IMAP(user): Next message unexpectedly lost from 5382 dovecot: Aug 28 16:58:23 Error: IMAP(user): Next message unexpectedly lost from 8324 dovecot: Aug 28 16:58:23 Error: IMAP(user): Next message unexpectedly lost from 8324 dovecot: Aug 28 16:58:23 Error: IMAP(user): Next message unexpectedly lost from 8324
dovecot: Aug 28 16:58:23 Error: child 18945 (imap) killed with signal 11
[...]

At the source:

> ls -al
total 28
drwxrws---  7 user group 4096 Aug 28 17:23 .
drwxrws---  3 user group 4096 Aug 28 17:23 ..
drwxrws---  2 user group 4096 Aug 28 17:23 Daily
drwxrwx---  2 user group 4096 Aug 28 15:04 Sanitary
drwxrwx---  2 user group 4096 Aug 28 15:04 Shredit
drwxrwx---  2 user group 4096 Aug 28 15:04 Special
drwxrwx---  2 user group 4096 Aug 28 15:04 Waste &- Recycling

> ls -al Waste\ \&-\ Recycling/
total 232
drwxrwx---  2 user group   4096 Aug 28 15:04 .
drwxrws---  7 user group   4096 Aug 28 17:23 ..
-rwxrwx---  1 user group     18 May 23  2006 .customflags
-rw-------  1 user group   4536 Aug 28 17:21 dovecot.index
-rw-------  1 user group 107520 Aug 28 17:21 dovecot.index.cache
-rwxrwx---  1 user group  26152 Aug 28 17:21 dovecot.index.log
-rwxrwx---  1 user group   1608 Jul 21  2006 .imap.index
-rwxrwx---  1 user group  60140 Jul 21  2006 .imap.index.data
-rwxrwx---  1 user group   2576 Apr  4  2006 .imap.index.log
-rwxrwx---  1 user group   1556 Jul 21  2006 .imap.index.tree

I have 1.1.2 side installation, so I could try though...

R.


Timo Sirainen wrote:
On Thu, 2008-08-28 at 13:42 +0100, Radomir Zoltowski wrote:
Hi all,

I've switched versions from the 1.0.RC2 to 1.1.2. Now I see a number of errors, e.g.:

dovecot: Aug 28 12:58:06 Error: IMAP(user): Log synchronization error at seq=1,offset=24 for /home/user/mailarchive/Tools/Cadence/.imap/Cadence/dovecot.index: Broken extension introduction: Record
field points outside record size (0+16 > 8)

Do these happen often? Or maybe it's just a buggy log file that 1.0.rc2
wrote and 1.1.2 complained about?

dovecot: Aug 28 12:58:10 Error: IMAP(user): Next message unexpectedly lost from 257852 dovecot: Aug 28 12:58:10 Error: IMAP(user): Unexpectedly lost From-line at 257852 dovecot: Aug 28 12:58:10 Error: IMAP(user): Next message unexpectedly lost from 262539

These are a bit more strange. You could see if running with this patch
for a while helps: http://hg.dovecot.org/dovecot-1.1/rev/7f5cc9e805ec

But in any case it would be helpful if you could figure out a way to
reproduce it.

--
_________________________________________________________

Radomir Zoltowski <[EMAIL PROTECTED]>
Applications Engineer
Silicon & Software Systems Ltd., IT Department
South County Business Park, Leopardstown, Dublin 18, IRELAND
Tel.: +353 1 291 1224, Fax: +353 1 291 1001
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