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Date: Mon, 08 Sep 2008 08:43:53 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Andi Kleen <andi@firstfloor.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>, linux@sandersweb.net,
       linux-kernel@vger.kernel.org, the arch/x86 maintainers <x86@kernel.org>,
       Andi Kleen <andi-suse@firstfloor.org>
Subject: Re: [BUG] x86 kenel won't boot under Virtual PC
References: <200808311422.12525.linux@sandersweb.net> <200809071922.32974.linux@sandersweb.net> <48C48467.40703@zytor.com> <200809072249.17280.linux@sandersweb.net> <48C4A46B.90705@zytor.com> <alpine.LFD.1.10.0809080805240.3117@nehalem.linux-foundation.org> <20080908154535.GL26079@one.firstfloor.org>
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Andi Kleen wrote:
> On Mon, Sep 08, 2008 at 08:09:48AM -0700, Linus Torvalds wrote:
>> On Sun, 7 Sep 2008, H. Peter Anvin wrote:
>>> Under that logic we shouldn't even have CPU configurables, since you want it
>>> to "just work" whatever crap you're running on.  That is EXACTLY what
>>> CONFIG_X86_GENERIC means
>> I dunno.. Event he help-text doesn't actually agree with that:
> 
> The help text matches in how I wrote this option originally.
> The original use case was the 128 byte P4 cache lines.
> 

The help text is indeed out of date.  I did a patch yesterday to, among 
other things, update it; I also want to verify that we are disabling all 
options that can cause gcc or binutils to generate nopl's; I plan to 
push it today.

	-hpa