From owner-freebsd-smp  Thu Jul 30 03:49:41 1998
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From: Russell Vincent <rv@riffraff.plig.net>
Message-Id: <199807301049.LAA05913@riffraff.plig.net>
Subject: Re: SMP on dual porcessor Compaq
In-Reply-To: <199807291646.JAA03220@antipodes.cdrom.com> from Mike Smith at "Jul 29, 98 09:46:10 am"
To: mike@smith.net.au (Mike Smith)
Date: Thu, 30 Jul 1998 11:49:24 +0100 (BST)
Cc: freebsd-smp@FreeBSD.ORG
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> > My first guess would be this:
> > > Processors: APIC ID Version State           Family  Model   Step    Flags
> > >              0       0x10    BSP, usable     6       2       1       0x0381
> > >              0       0x10    AP, usable      6       3       4       0x80fbff
> > 
> > You can't have two processors with the same ID.  I'd check to see what
> > the flags mean, too.
> 
> I'd also be worried about the model mismatch, and the steppings; Intel
> normally recommend only pairing processors at most one apart from each
> other in stepping numbers.

Just tried swapping various combinations of processors (we have 2 of
the machines) and I get the exact same result. All 4 processors tested
are PII-266's and there are 2 pairs with each pair from the same
manufacturer and only slight differing serial numbers.

I can't find anything in the Compaq setup that allows me to adjust
SMP/processor attributes.

Thanks for the info.
 -Russell


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