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Date:      Mon, 5 Apr 1999 23:54:39 -0700
From:      "David Schwartz" <davids@webmaster.com>
To:        "Bill Paul" <wpaul@ctr.columbia.edu>
Cc:        <stable@freebsd.org>
Subject:   RE: FW: Reveiver stops with MX98713-based 100Mbps Ethernet card
Message-ID:  <000001be7ffa$5730a570$021d85d1@whenever.youwant.to>
In-Reply-To: <199904060641.CAA01796@sirius.ctr.columbia.edu>

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> > 	I'm running 3.1-STABLE, current as of last night.
>
> No no no. Stop it right there. This is only part of what you should have
> said. You say 'current as of last night' but you don't say what you were
> running before last night. Did the problem actually start last night?
> If not, when did it start? When was the last time that it worked
> correctly? The idea here is to give me some idea when the problem started
> so that I can try to isolate a particular change that may have caused
> the trouble. I can't do that based on this tiny bit of information.

	I wish I knew, but until I upgraded to 3.1-STABLE, I couldn't use a
Macronix-based card. So I don't know.

> > What happens is that
> > anytime the Ethernet card gets really flooded with incoming packets (for
> > example, if you FTP a 4Mb file from another machine on a local fast
> > ethernet), the receiver simply stops receiving.
>
> If you do netstat -in, do you see any input errors? Is the NIC connected
> to a hub (repeater) or a switch? Is it running at 10Mbps or 100Mbps? Full
> duplex or half? (If it's a repeater it better be half.)

	The NIC is connected to a 100-base-T hub, so it's running at 100Mbps half
duplex. It correctly detects/selects the media type:

        media: 100baseTX <half-duplex>

	I see lots of input and output errors just before it blows up, yes:

Name  Mtu   Network       Address            Ipkts Ierrs    Opkts Oerrs
Coll
mx0   1500  <Link>      00.40.33.a5.0f.8c     1251     9      910     3
10
mx0   1500  209.133.29/27 209.133.29.20       1251     9      910     3
10

> > 	If it helps, the card is an SVEC PN102TX (early version). The later
> > versions of this same card used the MX98715, I think. Mine's a 98713.
>
> What kind of machine is it? CPU type? Speed? Intel or AMD?

	Intel Pentium 200 non-MMX. 32Mb RAM.

> > 	Any clues?
>
> You're supposed to give me the clues.

	Sorry, it's hard for me to know what you'd need.

	DS



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