Timo Sirainen wrote:

On Tue, 2008-07-08 at 11:17 -0700, Hans Wunsch wrote:

...

I'm looking for some help with an nfs error that is filling our logs. I get a constant stream of these messages:

Jul 8 10:47:08 servername dovecot: [ID 107833 mail.error] IMAP(username): nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device busy

I have two dovecot IMAP servers. All mailboxes are NFS mounted. The INBOX is /var/mail and the rest are in /home/<user>/mail.

I guess the problem is dotlocking. They probably go away with the attached patch? But that also could make the locking slower if the cache doesn't get flushed and the cached stat values keep getting returned.

Sorry for taking so long to get back on this one. But it seems the errors persist with the patch:

Jul 21 11:10:44 barrelv1 dovecot: [ID 107833 mail.error] IMAP(hans): nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device busy Jul 21 11:10:44 barrelv1 dovecot: [ID 107833 mail.error] IMAP(hans): nfs_flush_file_handle_cache_dir: rmdir(/var/mail) failed: Device busy

Other ideas?

Thanks, Hans.