linux-kernel - Re: [PATCH 1/5] x86-32: Split cache flush handler from simd handler

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Message-ID: <4BA519A3.3000605@kernel.org>
Date:	Sat, 20 Mar 2010 11:53:23 -0700
From:	"H. Peter Anvin" <hpa@...nel.org>
To:	Brian Gerst <brgerst@...il.com>
CC:	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] x86-32: Split cache flush handler from simd handler

On 03/19/2010 09:55 PM, H. Peter Anvin wrote:
> 
> Ah, guess it was even older than I first realized ... I should have
> searched for the string "cache flush denied" instead.
> 
> Sounds like we should do three things:
> 
> a) update the comment to actually reflect what is going on;
> b) compile it out for > 486;
> c) report the error as trap 13 rather than 19.
> 

Actually what we should do is recognize that this is nothing other than
a misdirected #GP, and as a result send the fault down the #GP handler
(do_general_protection)... there really isn't any need for a special
routine at all.

	-hpa
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