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Date:      Tue, 29 Jun 1999 08:47:51 +1000 (EST)
From:      John Birrell <jb@cimlogic.com.au>
To:        peter@netplex.com.au (Peter Wemm)
Cc:        dillon@apollo.backplane.com, alc@cs.rice.edu, tlambert@primenet.com, bakul@torrentnet.com, julian@whistle.com, freebsd-smp@FreeBSD.ORG
Subject:   Re: high-efficiency SMP locks - submission for review
Message-ID:  <199906282247.IAA10502@cimlogic.com.au>
In-Reply-To: <19990628171823.3445882@overcee.netplex.com.au> from Peter Wemm at "Jun 29, 1999  1:18:23 am"

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Peter Wemm wrote:
> Ahh, right, silly me.  I was thinking of the 8-byte version which is signified
> by the CX8 bit in cpuid.
> 
> The 386, I doubt has it.  There have been a couple of suggestions for ending
> the support for the 386 as it will simplify some ugly code for emulating
> kernel-mode write faults etc, but it's never happened.  Apparently the
> 386 is common in some areas still.

Some of us use the 386EX as an embedded processor in low power (~2W)
memory based applications. Dropping support for 386 (UP) from FreeBSD
would fork a new *BSD! 

-- 
John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/
CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137


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