*BSD News Article 4662


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Newsgroups: comp.unix.bsd
Path: sserve!manuel!munnari.oz.au!uniwa!cujo!marsh!cproto
From: cproto@marsh.cs.curtin.edu.au (Computer Protocol)
Subject: Re: Some more on NMI problems (some meager advancement)
Message-ID: <cproto.715945053@marsh>
Sender: news@cujo.curtin.edu.au (News Manager)
Organization: Curtin University of Technology
References: <1992Sep7.014351.946@ponds.uucp>
Date: Tue, 8 Sep 1992 09:37:33 GMT
Lines: 30

rivers@ponds.uucp (Thomas David Rivers) writes:


>Well, I thought I would relay my current status with the NMI
>investigation.

>  Right now, I'm thinking it has something to do with an IDE
> controller/disk drive, so I have been examining the wd.c driver
> trying to divine what it might be; without too much luck. (I 
> know very little about the IDE/WD disk controllers.)

[STUFF DELETED]

>  - Dave Rivers -
>   (rivers@ponds.uucp)

I'm also experiencing the problem. I disagree with the IDE controller
idea. I still think it's a spurious parity error. Note that the NMI
interrupt reports the value of I/O port 61. This value has the highest
bit set which indicates a parity error. But after running QAPLUS for
several days I'm convinced my memory is ok.

Could it be some sort of setup problem - e.g. wait states which can
be configured in my AMI BIOS.

BTW I do have a IDE controller/disk so Dave might be right.

Regards - Tibor Sashegyi (cproto@abel.cs.curtin.edu.au)