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Date:	Thu, 23 Feb 2012 23:52:27 +0100
From:	Willy Tarreau <>
To:	"H. Peter Anvin" <>
Cc:	Linus Torvalds <>,
	Greg Kroah-Hartman <>,, Raphael Prevost <>,
	Suresh Siddha <>,
	Linux Kernel Mailing List <>
Subject: Re: [PATCH 0/5] i387: stable kernel backport

On Thu, Feb 23, 2012 at 02:48:51PM -0800, H. Peter Anvin wrote:
> On 02/23/2012 02:38 PM, Linus Torvalds wrote:
> > 
> > You'd still need an x86-32 machine to test on, because x86-64 was
> > immune to this issue.
> > 
> > But yeah, the impact of this seems to be small enough that for older
> > kernels (which are likely used on older systems for maintenance
> > anyway) disabling AES-NI on x86-32 really might be the way to go.
> > 
> That would really suck for users of encrypted hard disks.

Peter, do you really think there are that many ? I think I only saw
AES-NI on recent 64-bit capable chips, and it's been a while that
users have been installing 64-bit distros on such machines. Note that
I'm not advocating for breaking existing setups, just that I'm surprized
by this combination (aes-ni + 32-bit).


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