seen state failure after disk full

[Daniele Marco Bevar]

Hi,

i'm running cyrus-imapd 2.2.12 on a fedora (on a open-xchange) and I had a server failure for a disk full a few days ago.
I have 6 mailboxes running on this server, and 2 of them (the bigger and more frequently used) went lightly corrupted after that. The other 4 are running well. The all open-xchange was running well from almost two years now.

All the mailboxes are receiving and sending mail, but the problem on 2 of them is that it's no more possible to flag a message as seen. Every time the mail interface refresh (with every imap client I know) all the messages are flagged as unseen.
The logs of one of the mailboxes under lib/imap/log says

* OK (seen state failure) Unable to preserve \Seen state: System I/O error

I've tryed several times to stop imap and do a reconstruct, but no way.
reconstruct -m (found in a FAQ) doesn't work as the answer is

reconstructing mailboxes.db currently not supported

I couldn't find this error on the cyrus site.

Any ideas?

Thanks
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