[Dovecot] Error in rename uidlist while fetching through pop3

[James Berry]

My dovecot server seems to randomly begin giving errors to pop3 users  
who try to fetch their email. Once this begins, they see no more new  
mail, though the mail is in cur.

Running: dovecot-stable 20050501, Mac OS X 10.3.9

Log entries like this:

May  2 19:35:18 caddy dovecot: pop3-login: Login: kim [24.22.16.169]
May  2 19:35:18 caddy dovecot: POP3(kim): rename(/Users/kim/Maildir/ 
dovecot-uidlist.lock, /Users/kim/Maildir/dovecot-uidlist) failed:  
Input/output error
May  2 19:35:18 caddy dovecot: POP3(kim): file_dotlock_replace(/Users/ 
kim/Maildir/dovecot-uidlist) failed: Input/output error


Is this a known problem, and/or is there a known way to recover from  
such a situation? I'm managed to throw out the uidlist, but that  
means they get a whole dump of new mail.

-jdb