linux-kernel - Re: [BUG] x86 kenel won't boot under Virtual PC

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Date:	Sun, 7 Sep 2008 22:49:15 -0400
From:	David Sanders <linux@...dersweb.net>
To:	linux-kernel@...r.kernel.org
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	the arch/x86 maintainers <x86@...nel.org>,
	Andi Kleen <andi-suse@...stfloor.org>
Subject: Re: [BUG] x86 kenel won't boot under Virtual PC

On Sunday 07 September 2008 21:48, H. Peter Anvin wrote:
> David Sanders wrote:
> > Yes the patch you supplied (and now in Linus's tree) fixes (part) of the
> > problem. In order to get a working kernel I also need a patch for the
> > nops.h issue. I have tested and confirmed that the patch posted by Linus
> > works and finally solves the problem with virtual PC.
> >
> > Linus please apply your patch (which I quote below).
>
> No, please don't.  Instead, David, please enable CONFIG_X86_GENERIC.
>


I checked the distribution I'm using (debian) and the kernel shipped with it 
does not have  CONFIG_X86_GENERIC set.  This means _when_ they ship a 2.6.27 
kernel it won't work with Virtual PC so I won't be able to even install it.
However, with Linus's patch I am guaranteed to work for all kernels built for 
X86_32 and even for X86_64 because in that case the virtual environment will 
support the multibyte NOPs.  I need Linus's fix in order to support the 
Linux-using virtual pc community.  I don't have the resources to lobby each 
individual distribution about their kernel config.  I want it to just work.  
        David
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