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To: frf <frf@qcworld.com>
cc: freebsd-bugs@freebsd.org, questions@freebsd.org
Subject: Re: status of kern/1157 
In-reply-to: Your message of "Thu, 05 Sep 1996 14:17:55 PDT."
             <199609052117.OAA00375@tailspin.qcworld.com> 
Date: Thu, 05 Sep 1996 14:45:20 -0700
From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org>
Sender: owner-bugs@freebsd.org
X-Loop: FreeBSD.org
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>Dear Mr Know-It-All,

There are more than one of us, but unfortunately, we don't "Know-It-All".

>I'm having sporadic problems with a AHA-2940 scsi controller.
>It works fine until I attempt to move a lot of data...

>** Error message
>Ahc0: Issued Channel A Bus Reset #1 (2,3,4) SCBs aborted.
>sd1(ahc0:2:0): timed out in messages phase, SCSISIGI == 0x0
>sd1(ahc0:2:0): asserted ATN device reset in messages buffer
>...ad nausium...

I need the exact message from the first error.  This is very important.

Another thing to try might be to lower the sync rate to 8MHz for all
of your drives.  It looks like you have an early revision 2940 with the
42.5MHz clock crystal which means that it will run the bus slightly too
fast and may be confusing the HP (this is known to happen on some
Quantum drives like the 1080S).  You can verify that this may be a
cause of your problem by looking at the rating on the clock crystal of
your card.

--
Justin T. Gibbs
===========================================
  FreeBSD: Turning PCs into workstations
===========================================