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From: Paul Richards <paul@isl.cf.ac.uk>
Message-Id: <199502201418.OAA13182@isl.cf.ac.uk>
Subject: Re: Another lnc0 bug?
To: alex@ineos.ac.ru
Date: Mon, 20 Feb 1995 14:18:52 +0000 (GMT)
Cc: bugs@FreeBSD.org
In-Reply-To: <199502171248.PAA07860@alpha.ineos.ac.ru> from "Alexander V. Polyakov" at Feb 17, 95 03:48:02 pm
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In reply to Alexander V. Polyakov who said
> 
> I'm using a PCnet-PCI (AMD 79C970) ethernet card and it also

Hmm, I've had a report that these aren't even seen by the driver, obviously
they are.

> produces weird error messages on the console all the time.
> But instead of "Memory error -- Resetting" they say:
> 
> <date> <time> <hostname> /kernel: lnc0: Heartbeat error -- SQE test failed
> <date> <time> <hostname> last message repeated <xx> times.

Is there a jumper that disables the SQE test? I've seen some cards with this.
The test should be enabled or you'll always see these errors.

Otherwise you have a real hardware problem.

Unless that is you have a twisted pair interface in which case the SQE test
gets disabled but the driver won't know that. The Am79C970 isn't specifically
supported at the moment and it has some extra features that the driver isn't
aware of.

> 
>    or
> 
> <date> <time> <hostname> /kernel: lnc0: Receive CRC error
> <date> <time> <hostname> last message repeated <xx> times.

This seems to be a bug but I haven't found the problem yet.

-- 
  Paul Richards, FreeBSD core team member. 
  Phone: +44 1222 874000 x6646 (work), +44 1222 457651 (home)
  Dept. Mechanical Engineering, University of Wales, College Cardiff.
  Internet: paul@FreeBSD.org,  JANET(UK): RICHARDSDP@CARDIFF.AC.UK