From: Bill Davidsen <davidsen@tmr.com>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Bugs aren't features: X86_FEATURE_FXSAVE_LEAK
Date: Tue, 09 May 2006 10:38:02 -0400 [thread overview]
Message-ID: <4460A94A.10905@tmr.com> (raw)
In-Reply-To: <p733bfo5ol1.fsf@bragg.suse.de>
Andi Kleen wrote:
> "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.
>
The initial argument is dead on, bugs should be either presented as a
"fixed" feature, or there could (should?) be a bugs vector which could
be or'd. It's at least possible that AMD might fix this some time.
--
-bill davidsen (davidsen@tmr.com)
"The secret to procrastination is to put things off until the
last possible moment - but no longer" -me
next prev parent reply other threads:[~2006-05-09 14:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-05 16:36 Bugs aren't features: X86_FEATURE_FXSAVE_LEAK 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 [this message]
[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
2006-05-08 17:47 ` H. Peter Anvin
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