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Date:      Wed, 14 Jul 1999 00:42:46 -0400
From:      James Kalmadge <kalmadg@banet.net>
To:        Ben Smithurst <ben@scientia.demon.co.uk>
Cc:        Magnwa Spiritseer <magnwa@lionking.org>, questions@freebsd.org
Subject:   Re: Cyrix - > AMD K6-2 300
Message-ID:  <378C1546.7C6D95BE@ulster.net>
References:  <99071310584100.03100@magnwa.lionking.org> <19990713194717.A72332@rainbow5.scientia.demon.co.uk>

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It worked fine for me.
My  Cyrix motherboard went out and I replaced it
with an AMD 350 which came right up.

Then I made a new kernel with 586 class. and voila!

James


Ben Smithurst wrote:

> Magnwa Spiritseer wrote:
>
> > The subject says it all.  I'm going from a Cyrix to an AMD processor.  The
> > cyrix has been quite .. awkward (It's going to become a car MP3 player soon)
> > and I was wondering if I need to do a build world , and kernel recompile, and
> > such when I get the new AMD chip in?  Would it be an issue at all?
>
> You might have to compile a new kernel. I don't know what class the K6 is
> (586 or 686), but my Cyrix chip is recognized as a 486 class. Userland
> binaries should be fine, though you may also have to recompile those which
> use libkvm. (Not because of the CPU change, but because the new kernel
> might be made of difference sources from the old one.) If you don't know
> which binaries use libkvm, just rebuild the whole world.
>
> The easiest way is just to try it with the new chip. If you get "panic:
> cpu class not configured", stick the Cyrix back in and build a new
> kernel with all classes to see which class the new one is detected as.
> If you don't get that panic, everything should be fine.
>
> --
> Ben Smithurst            | PGP: 0x99392F7D
> ben@scientia.demon.co.uk |   key available from keyservers and
>                          |   ben+pgp@scientia.demon.co.uk
>
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