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Date:      Sat, 23 Dec 2000 14:21:06 +0100
From:      "Marco van de Voort" <marcov@stack.nl>
To:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: Pentium 4
Message-ID:  <3A44B4D2.13709.5F439B@localhost>
In-Reply-To: <20001223143242.C59497@ringworld.oblivion.bg>
References:  <200012222333.eBMNXFx79651@iguana.aciri.org>; from rizzo@aciri.org on Fri, Dec 22, 2000 at 03:33:15PM -0800

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> On Fri, Dec 22, 2000 at 03:33:15PM -0800, Luigi Rizzo wrote:
> > > The Linux issue was actually more stupid than that; Linux won't run on a 
> > > CPU it doesn't recognise.  FreeBSD will only refuse to run on a CPU it 
> > > recognises as incapable (since that is a much smaller set).
> > 
> > actually, back in 1.1.5 times, i had a kernel which did not have
> > cpu I586_CPU in the kernel config file, and it did refuse to
> > run on a pentium
> 
> It is still like this - if you do not have support for your CPU *class*,
> FreeBSD will refuse to boot.  However, you do not have to have support
> for each and every CPU model from this class - a I686_CPU kernel will
> very happily run on Pentium 4 CPU's.
> 
> Or am I raving again? :)  Feel free to correct any gross errors I've made :)

Afaik yes :-) 

IIRC the problem is that P4 reports itself back as family 15 or 
something like that, not 6. ?



Marco van de Voort (MarcoV@Stack.nl or marco@freepascal.org)




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