Date: Sun, 02 May 1999 14:24:32 -0700 From: Darryl Okahata <darrylo@sr.hp.com> To: freebsd-questions@FreeBSD.ORG Subject: Re: Dual K6 Message-ID: <199905022124.OAA14208@mina.sr.hp.com> In-Reply-To: Your message of "Sat, 01 May 1999 20:42:37 PDT."
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rick hamell <hamellr@dsinw.com> wrote:
> > I heard that FreeBSD isn't very happy running on dual K6s. Was wondering
> > if anyone had any first-hand experience with that?
> >
> > I'll be aquiring a dual socket-7 board with a pair of P133s and was
> > thinking of upgrading the CPUs and I hadn't tried any AMD processors yet.
>
> AMD chips are not able to do SMP. It's a limitation of the chip
> itself. You'll have to go with Intel to do dual anything. If AMD chips
> could run this way, FreeBSD would be able to support them with few if any
> problems.
No, the SMP limitations are (currently) in FreeBSD. The SMP code
in FreeBSD is very tightly tied to Intel's SMP architecture. While it's
theoretically possible to modify FreeBSD for non-Intel SMP, it would be
a lot of work. For more information, see:
http://www.freebsd.org/cgi/getmsg.cgi?fetch=693466+696393+/usr/local/www/db/text/1999/freebsd-current/19990214.freebsd-current
The bottom line is that (curretnly) only Intel chips can be used
for FreeBSD SMP.
--
Darryl Okahata
darrylo@sr.hp.com
DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion, or policy of Hewlett-Packard, or of the
little green men that have been following him all day.
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