Date: Tue, 2 Jun 1998 05:50:01 -0700 (PDT) From: Stacy Millions <stacy@Millions.CA> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/6800 Message-ID: <199806021250.FAA17417@freefall.freebsd.org>
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The following reply was made to PR kern/6800; it has been noted by GNATS.
From: Stacy Millions <stacy@Millions.CA>
To: Poul-Henning Kamp <phk@FreeBSD.ORG>
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: kern/6800
Date: Tue, 02 Jun 1998 08:45:50 -0400
Poul-Henning Kamp wrote:
>
> Synopsis: Cyclom 8yo problem
>
> State-Changed-From-To: open-feedback
> State-Changed-By: phk
> State-Changed-When: Tue Jun 2 04:15:05 PDT 1998
> State-Changed-Why:
> Can you talk with the same cable to another device/port/something ?
> It is important that you be systematic in isolating the troubled
> part.
I did that. I used my NT box for the standard. From the NT, I was able to
communicate with the com1 port of the FreeBSD, but not any of the cyclom
ports.
> Cabeling is suspect #1.
Nope. I have a good breakout box and a set of trusted cables that I use for
testing.
> Look out for ground-loops which can
> induce serious amounts of noise.
My multimeter shows a potential of 1.1 mV between the signal grounds of the
two boxes.
I looked on the Cyclades support web page and found a driver for FreeBSD
2.2.6 that was different from the one in my source directory. I installed
it and every thing is fine now.
cy.c:
$Id: cy.c,v 1.41.3.1 1998/05/01 18:23:46 ivan Exp $
cy.c.orig:
$Id: cy.c,v 1.41.2.3 1998/03/18 21:05:19 dg Exp $
Thanks for the help.
-stacy
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