smbd "Error was socket is not connected"

From: Bob (no.spam_at_see.the-sig.con)
Date: 10/10/04

Date: Sun, 10 Oct 2004 16:58:33 +0100

smbd (Samba) produces the following message (on ttyv0) regularly,
sometimes only every few days, sometimes several times in an hour:

        getpeername failed. Error was socket is not connected
        Connection denied from

I've read that it's a DNS (I'm running BIND 9) problem, but I cannot
work out what causes the problem.

Anyone know?