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From: "Kenneth D. Merry" <ken@rflab1.gtri.gatech.edu>
Message-Id: <199508251625.MAA23842@rflab1.gtri.gatech.edu>
Subject: Re: Adaptec 2842, Quantum XP34300 problem
To: gibbs@freefall.FreeBSD.org (Justin T. Gibbs)
Date: Fri, 25 Aug 1995 12:25:07 -0400 (EDT)
Cc: questions@freebsd.org
In-Reply-To: <199508251444.HAA05513@freefall.FreeBSD.org> from "Justin T. Gibbs" at Aug 25, 95 07:44:00 am
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> >ahc1: target 0, lun 0 (sd0) timed out
> >sd0(ahc1:0:0): BUS DEVICE RESET message queued.
> >ahc1: target 0, lun 0 (sd0) timed out
> >ahc1: Issued Channel A Bus Reset #1.  1 SCBs aborted
> >panic: ahc1: brkadrint, Illegal Host Access at seqaddr = 0x0

> The "brkadrint" is a bug.  The messages above it should be enough
> to find the problem.

	Cool....let me know if you track down the problem...I'll be glad
to test things out...

> >	So, I'm not sure whether this is a hardware problem, or a software
> >problem, or what. 

> The grand prixs are very touchy little drives.  We had three die with
> similar behavior patterns to what you describe here.  Although it 
> may be a driver problem, it sounds like the drive just didn't like it
> when you accessed a particular sector.

	Actually, the drive is an Atlas, not a Grand Prix.  (The XP34300
is an Atlas, the XP34301 is a Grand Prix...)  Of course, the problem may
not be limited to the Grand Prix drives...:(

> >	I wasn't running the -current ahc1 driver when I did the backup, so
> >the error messages aren't as verbose as they might be.  So, if anyone has
> >any idea how I might at the very least diagnose what kind of problem my
> >drive has, and hopefully be able to fsck the entire thing, I'd be very
> >grateful.

> The overlapped commands errors should not occur with the -current driver.
> You should be using that.

	Thanks for your help.


Ken
--
Kenneth Merry
ken@rflab1.gtri.gatech.edu
Disclaimer:  I don't speak for GTRI, GT, or Elvis.