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From: tdwyer@netbsd08.dn.itg.telecom.com.au (Terry Dwyer)
Newsgroups: comp.os.386bsd.misc
Subject: Re: SCSI bus hangs -- Help needed
Date: 14 May 1994 23:45:11 +0800
Organization: Telecom Australia
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Robert Withrow (witr@rwwa.com) wrote:
: Am I the *only* person on the face of the earth with this problem?
: Problem: Random SCSI bus hangs. Doesn't seem to correlate
: with anything other than bus activity. Doesn't depend on whether
: tape drive is connected or not, or whether the CDROM is accessed
: or not. I get hangs both ways.
I had this _exact_ same problem, except it was more the rule than
the exception.
: When the bus hangs, all devices have their access lights off, the
: AHA his its light on. I get console messages about timeouts and
: ``adapter not taking commands --- frozen?''.
Same as my problem.
: When I push the reset button the AHA light remains on. It *stays* on
: until the AHA bios starts sniffing the bus. It seems very much like
: the SCSI half of the AHA card has crashed hard.
This was another symptom.
: P.S., all of this hardware (including the cables) has worked in the
: past *without* any problems on a SVR4.0.3.0 system. I.E. absolutely
: *no* bus hangs. Some of it has worked with DOS, also without any
: problems.
So did mine, well, with the same OS ( NetBSD-0.8 ) until I started installing
a new drive. To cut a long story short, all the pulling and tugging
on the SCSI cable had loosened off a connector to one of the drives, where
the robbon is crimped to the IDC connector.
Try disconnecting one device at a time. It may show up as the fault
disapearing.
I hope it's as simple as this, good luck.
Terry.
--
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