I just observed this behaviour on one server. No relevant debug output, no obvious trigger, but at random intervals avahi causes all network services to lock up. Uninstalling avahi makes the problem go away. I can't take that box down to debug it further.
It should never have been installed in the first place; unclear quite how something as obscure as zeroconf managed to find its way onto a box that only does DNS, DHCP, mail, and samba. Perhaps a stray Recommends somewhere? -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]

