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From: andrewt@cs.su.oz (Andrew Taylor)
Newsgroups: comp.arch
Subject: Re: machines with some loadable microcode are easier to fix
Message-ID: <1763@cluster.cs.su.oz.au>
Date: 7 Jan 91 00:14:07 GMT
References: <71537@bu.edu.bu.edu> <1991Jan6.033536.14108@zoo.toronto.edu> <71693@bu.edu.bu.edu>
Sender: news@cluster.cs.su.oz.au
Reply-To: andrewt@cluster.cs.su.oz (Andrew Taylor)
Organization: Basser Dept of Computer Science, University of Sydney, Australia
Lines: 13

In article <71693@bu.edu.bu.edu> gjc@buitc.bu.edu (George J. Carrette) writes:
> Some people tried it on various CISCS that didn't have protected mode
> operating systems. Obviously stupid to try, and anybody who would
> take those results seriously is even more stupid.
> 
> One report of an actual CISC implementation hardware BUG was for a SUN-3
> of some kind. A bug with some off-chip hardware.

On our Sun 3/50s running SunOS 4.1 crashme can result (try crashme 32 1 4)
in a cpu-bound process which can't be killed. Rebooting seems the only way
to remove it. Seems like an OS bug to me.

Andrew