[Dovecot] nfs_flush errors

[Timo Sirainen]

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.

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