netdev - Re: Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes

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Message-Id: <200808090354.03568.wolfgang.walter@stwm.de>
Date:	Sat, 9 Aug 2008 03:54:03 +0200
From:	Wolfgang Walter <wolfgang.walter@...m.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>,
	"viro@...IV.linux.org.uk" <viro@...iv.linux.org.uk>,
	"vegard.nossum@...il.com" <vegard.nossum@...il.com>
Subject: Re: Kernel oops with 2.6.26, padlock and ipsec: probably problem with fpu state changes

On Saturday 09 August 2008, Herbert Xu wrote:
> On Fri, Aug 08, 2008 at 04:11:21PM -0700, Suresh Siddha wrote:
> > 
> > As I can't test, can you please test this and Ack.
> 
> Someone please test this with tcrypt mode=200 with and without
> the patch.

I'll do that. Where do I find tcrypt?

> 
> If there is a significant degradation I suggest that we back out
> the FPU changes.  Making your competitor's processor go slow is
> not a nice thing to do, especially when you've just released a
> processor in the same space.
> 
> If the degradation is small then I'll push it to Linus.
> 
> Thanks,
> -- 
> Visit Openswan at http://www.openswan.org/
> Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
> 
> 

Regards,
-- 
Wolfgang Walter
Studentenwerk München
Anstalt des öffentlichen Rechts
Leiter EDV
Leopoldstraße 15
80802 München
Tel: +49 89 38196-276
Fax: +49 89 38196-144
wolfgang.walter@...m.de
http://www.studentenwerk-muenchen.de/
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