Date: Sat, 13 Sep 2003 19:37:58 +0100
From: Dave Jones <davej@redhat.com>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Adrian Bunk <bunk@fs.tum.de>, linux-kernel@vger.kernel.org
Subject: Re: RFC: [2.6 patch] better i386 CPU selection
Message-ID: <20030913183758.GQ1191@redhat.com>
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	Jeff Garzik <jgarzik@pobox.com>, Adrian Bunk <bunk@fs.tum.de>,
	linux-kernel@vger.kernel.org
References: <20030913125103.GE27368@fs.tum.de> <20030913161149.GA1750@redhat.com> <20030913182159.GA10047@gtf.org>
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On Sat, Sep 13, 2003 at 02:21:59PM -0400, Jeff Garzik wrote:

 > >  > In 2.4 selecting e.g. M486 has the semantics to get a kernel that runs 
 > >  > on a 486 and above.
 > >  > In 2.6 selecting M486 means that only the 486 is supported.
 > > 
 > > What are you basing this on ? This seems bogus to me.
 > > Last I checked, I could for eg, boot a 386 kernel on an Athlon.
 > 
 > If you know that you're only booting on a 486, why include all the junk
 > needed solely for later processors?

Reread. a kernel _compiled for 386_
Precisely what junk do you mean ?

 > > If we boot a 386 kernel on a ppro with that bug, this goes bang.
 > Echo my first comment.

Echo 2 lines above. People do use 386 kernels for install kernels
on distros. Removing errata workarounds means distros start randomly
exploding during installs.

		Dave

-- 
 Dave Jones     http://www.codemonkey.org.uk
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