Subject: port-i386/659: 3c509 driver falls off net using AUI
To: None <gnats-admin@NetBSD.ORG>
From: None <ghudson@MIT.EDU>
List: netbsd-bugs
Date: 12/27/1994 22:50:06
>Number:         659
>Category:       port-i386
>Synopsis:       Using a 3c509 combo card and AUI, machine falls off network
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    gnats-admin (GNATS administrator)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Dec 27 22:50:05 1994
>Originator:     Greg Hudson
"MIT Student Information Processing Board"
>Release:        1.0
System: NetBSD glacier 1.0 NetBSD 1.0 (3C509-AHA) #0: Sun Dec 25 08:55:43 PST 1994
ghudson@glacier:/usr/src/sys/arch/i386/compile/3C509-AHA i386

This problem applies to every kernel I have tried.

	Using a 3c509 combo card and AUI, my machine sporadically loses
	contact with the network, usually during periods of high traffic.
	The problem is not easily repeatable; however, when running video
	games over the network via X, or doing file transfers via NFS (e.g.
	while installing NetBSD), the machine regularly loses contact with
	the network.

	I can reestablish contact with the network by re-running "ifconfig"
	on the interface.  This problem does not occur on machines using
	BNC (I know of at least two machines using 3c509 cards, one of them
	definitely a combo 3c509 card, which have never experienced this
	problem).  I do not know whether this problem occurs on machines
	using UTP.

	The output of "/sbin/ifconfig -a" does not change when the machine
	falls off of the network; it always reads:

        inet netmask 0xffff0000 broadcast
lo0: flags=8009<UP,LOOPBACK,MULTICAST>
        inet netmask 0xff000000 

	Perform high-traffic network activities using the AUI interface of
	a 3c509 card.

	I do not have a fix, but am willing to run debugging code to help
	find the problem if you don't have an equivalent setup or cannot
	reproduce the problem.