From: Robert Hancock <hancockr@shaw.ca>
To: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Bugs aren't features: X86_FEATURE_FXSAVE_LEAK
Date: Sat, 06 May 2006 11:37:20 -0600 [thread overview]
Message-ID: <445CDED0.4070402@shaw.ca> (raw)
In-Reply-To: <69mqY-1Ci-9@gated-at.bofh.it>
Christer Weinigel wrote:
> Andi Kleen <ak@suse.de> writes:
>
>> "H. Peter Anvin" <hpa@zytor.com> writes:
>>
>>> The recent fix for the AMD FXSAVE information leak had a problematic
>>> side effect. It introduced an entry in the x86 features vector which
>>> is a bug, not a feature.
>> It's a non issue because it affects all AMD CPUs (except K5/K6).
>> You'll never find a system where only some CPUs have this problem.
>
> I have a dual CPU system (Tyan Tomcat 1564D) where only one CPU is
> reported to have the F00F bug (iirc). So yes, there can be
> SMP-systems where the CPU's have different bugs.
Point being, not this bug..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/
next parent reply other threads:[~2006-05-06 17:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <69bvw-2zO-5@gated-at.bofh.it>
[not found] ` <69d4M-4Yx-19@gated-at.bofh.it>
[not found] ` <69mqY-1Ci-9@gated-at.bofh.it>
2006-05-06 17:37 ` Robert Hancock [this message]
2006-05-08 17:47 ` Bugs aren't features: X86_FEATURE_FXSAVE_LEAK H. Peter Anvin
2006-05-05 16:36 H. Peter Anvin
2006-05-05 18:11 ` Andi Kleen
2006-05-05 18:18 ` H. Peter Anvin
2006-05-05 18:27 ` Andi Kleen
2006-05-06 4:16 ` Christer Weinigel
2006-05-09 14:38 ` Bill Davidsen
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