*BSD News Article 74477


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From: strange@tezcat.com (Mike Scher)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Buslogic fails to reset?
Date: 23 Jul 1996 02:05:51 GMT
Organization: Cultural Consulting, Chicago
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Message-ID: <4t1c1v$rge@tepe.tezcat.com>
NNTP-Posting-Host: xochi.tezcat.com
X-Newsreader: TIN [UNIX 1.3 950824BETA PL0]

Scenario:  FreeBSD 2.1.0 and a Buslogic 946C card, two very different PCI
machines (DEC P133; Acer P100), and different SCSI peripherals (Connor 
and a 4mm external drive on one, Micropolis drive (internal only) on the 
other. 

Whenever -any- SCSI device has a read error, the system will lose it. 
Error reported is :  bt0 trying to reset -- repeatedly -- this will result
in the machine either hanging at that point or going into panic; it does
not tend to come back up without a full power cycle.  This happens, of 
course, most often during heavy disk access or tape verifies.

Has anyone had familiarity with this?  I'm at the point now that I am 
making backups without verify in order to prevent lockups.

      -Mike

-- 
Michael Brian Scher   (MS683)   | Anthropologist, Attorney, Part-Time Guru
http://www.tezcat.com/~strange/ |          strange@cultural.com
strange@tezcat.com              |       mbscher@midway.uchicago.edu
   I'm a legal anthropologist; what's an illegal anthropologist?