[Dovecot] Error: NO Mailbox is locked

[Timo Sirainen]

On Fri, 2009-10-16 at 13:48 +0200, Giovanni Mancuso wrote:
> In dovecot log, i have:
> 
> Error: IMAP(email at domain.com): nfs_flush_fcntl:
> fcntl(/maildirs/domain.com/user/Maildir/dovecot.index.cache, F_RDLCK)
> failed: Interrupted system call

If your NFS lockd doesn't work fast enough or well enough I guess NFS
cache flushes can cause problems like these.. Do you have more than one
Dovecot instance accessing the mailboxes in NFS server? If not, just
remove mail_nfs_*=yes settings and this should go away.

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