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Date:      Mon, 1 Mar 1999 16:50:01 -0800 (PST)
From:      Torbjorn Granlund <tege@matematik.su.se>
To:        freebsd-bugs@FreeBSD.org
Subject:   Re: kern/10332: System freezes during certain SCSI activity 
Message-ID:  <199903020050.QAA13745@freefall.freebsd.org>

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The following reply was made to PR kern/10332; it has been noted by GNATS.

From: Torbjorn Granlund <tege@matematik.su.se>
To: "Kenneth D. Merry" <ken@plutotech.com>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG, gibbs@FreeBSD.ORG
Subject: Re: kern/10332: System freezes during certain SCSI activity 
Date: Tue, 02 Mar 1999 01:40:24 +0100

 Ken,
 
 Thanks for the reply!
 
 Yes, the timeout would sound like a cabling problem to me too.  But the fact
 that I have run the system w/o any problems with the same LVD cabling for
 1/2 year tells me the cabling is fine.  I added the tape unit lately, and
 that on the SE bus.  That started the problems, but I am unwilling to remove
 the tape unit.
 
 And yes, I have proper LVD cabling for the 4 disks (a messy cable with lots
 of twisted pairs...).  The tape unit is connected with a plain old 50-pin
 cable.  I have terminators in place (on the cable for the LVD bus and in the
 tape unit for the SE bus).
 
 If this is some sort of cable problem, why does it take hours to make it
 happen?  And why cannot FreeBSD recover from the problem?
 
 I have had cable problems in the past (with plain Ultra devices), and then
 FreeBSD was always able to recover (within a minute).
 
 Torbjörn
 


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