linux-kernel - Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before switching DS and ES

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Date:	Fri, 15 May 2015 21:53:43 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Willy Tarreau <w@....eu>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, Andy Lutomirski <luto@...capital.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [ 05/48] x86_64, switch_to(): Load TLS descriptors before
 switching DS and ES

On Fri, 2015-05-15 at 17:53 +0200, Andi Kleen wrote:
> > 
> > v2.6.32.65:arch/x86/kernel/process_64.c:425:    /* Must be after DS reload */
> > 
> > If this comment is correct then the patch will cause a regression for
> > FPU state management.  The comment was introduced by:
> 
> Yes I already stated before that these super-risky patches
> are not stable material.
[...]

Which other patches do you include in that?

Ben.

-- 
Ben Hutchings
It is impossible to make anything foolproof because fools are so ingenious.

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