linux-kernel - Re: AVX "Sandy Bridge" hardware issue?

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Message-Id: <20110715090639.5550ac11.mk@cognitivedissonance.ca>
Date:	Fri, 15 Jul 2011 09:06:39 -0400
From:	MK <mk@...nitivedissonance.ca>
To:	linux-kernel@...r.kernel.org
Subject: Re: AVX "Sandy Bridge" hardware issue?

On Tue, 12 Jul 2011 15:06:48 -0600
Chris Friesen <chris.friesen@...band.com> wrote:
> For what it's worth, Intel says the E31230 supports AVX as well:
> 
> http://ark.intel.com/Product.aspx?id=52271

Thanks for that.
 
> As far as I can tell, support for saving/restoring AVX registers was 
> added in 2.6.30, but gcc 4.6 is needed for proper support to actually 
> use the new instructions.  However, given that you're using openVZ
> then if there is a bug in the kernel all it would take is one VPS
> slice using code built with a new compiler.

I might try building a new gcc (since there is no 4.6 binary for
F14) and then testing that way.




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"Enthusiasm is not the enemy of the intellect." (said of Irving Howe)
"The angel of history[...]is turned toward the past." (Walter Benjamin)

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