Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!lll-winken!uunet!mcsun!hp4nl!targon!jan
From: jan@targon.UUCP (Jan van Zeggelaar)
Newsgroups: comp.os.minix
Subject: Re: Demo disk on Amstrad PPC512
Keywords: NMI during boot
Message-ID: <1803@targon.UUCP>
Date: 17 Jun 91 16:23:02 GMT
References: <1991Jun14.095241.26365@EE.Surrey.Ac.UK>
Organization: Siemens Nixdorf Informationsystems BV.,SWZ, Vianen, the Netherlands.
Lines: 25

In article <1991Jun14.095241.26365@EE.Surrey.Ac.UK> D.Heale@ee.surrey.ac.uk (David Charles Heale) writes:
>
>	I have been attempting to run the Minix 1.5 demo disc recently
>posted on comp.binaries.ibm.pc on an Amstrad PPC512 unsuccessfully. When I
>press = or u to start minix the error message given is:
>Nonmaskable interrupt
>process number -9, pc=0x0060:0x00000A55
>Kernel panic: exception in kernel,mm or fs
>[lines deleted]
>		David Heale.

I had the same problems. I found out that Minix didn't try to do anything
after hitting 'u'. I also tried to get help but in the end I made a very
dirty patch in exception.h. (of course I was lucky to be able to boot Minix
on my 286 board. The problems arose after installing the 386). Before anybody
makes this patch, I am not an expert so watch this space for flames.

I simply don't 'panic' after an NMI once (for this I defined a static flag)
but simply return. Then rebuild the system, make a new bootflop, and it 
works.

Please, if my advise is very stupid, tell me before I, or anybody, get into
serious trouble.

				Jan Z.