dovecot - Sep 2009 - file->buffer_offset + file->buffer->used == file->sync_offset

I got the following panic on 1.2.3:

Panic: file mail-transaction-log-append.c: line 88 (log_buffer_move_to_memory):
assertion failed: (file->buffer_offset + file->buffer->used ==
file->sync_offset)

It's probably related to the file system holding the indexes being full.

On Mon, 2009-09-07 at 10:41 +0200, Edgar Fu? wrote:
> I got the following panic on 1.2.3:
> 
> Panic: file mail-transaction-log-append.c: line 88
(log_buffer_move_to_memory): assertion failed: (file->buffer_offset +
file->buffer->used == file->sync_offset)
> 
> It's probably related to the file system holding the indexes being
full.
Yes, but I'm still not sure why it would happen and I can't reproduce
it. You didn't happen to get a core dump? I'd really like to know what
"p *file" and "p *file.buffer" says in gdb.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 197 bytes
Desc: This is a digitally signed message part
URL:
<http://dovecot.org/pipermail/dovecot/attachments/20090913/25133878/attachment-0002.bin>

> but I'm still not sure why it would happen and I can't reproduce
it.
Hm.
> You didn't happen to get a core dump?
No, sorry. And I would not like to provoke the panic again.
> I'd really like to know what "p *file" and "p
*file.buffer" says in gdb.
Sorry.

Any details of our installation that might help?
Maildirs on NFS, indexes local.
mail_nfs_storage = yes

Further digging the logs reveals that for both panics, I have earlier errors:

Sep  7 10:06:12 xxx dovecot: IMAP(aaa): Broken file
/import/mail/aaa/.yyyyyy/dovecot-uidlist line 6071: UIDs not ordered (6146 >=
6146)
Sep  7 10:10:12 xxx dovecot: IMAP(aaa): Panic: file
mail-transaction-log-append.c: line 88 (log_buffer_move_to_memory): assertion
failed: (file->buffer_offset + file->buffer->used ==
file->sync_offset)

Sep  7 10:08:19 xxx dovecot: IMAP(bbb): Corrupted transaction log file
(in-memory index).log seq 4: Transaction log corrupted unexpectedly at 8200:
Invalid size 0 (type=1) (sync_offset=10344)
Sep  7 10:08:19 xxx dovecot: IMAP(bbb): fscking index file (in-memory index)
Sep  7 10:15:33 xxx dovecot: IMAP(bbb): Panic: file
mail-transaction-log-append.c: line 88 (log_buffer_move_to_memory): assertion
failed: (file->buffer_offset + file->buffer->used ==
file->sync_offset
)

Does this help? I can send uncensored logs if needed.