From: Andi Kleen <ak@suse.de>
To: Zachary Amsden <zach@vmware.com>
Cc: linux-kernel@vger.kernel.org, macro@linux-mips.org
Subject: Re: 2.6.14: CR4 not needed to be inspected on the 486 anymore?
Date: 05 Nov 2005 18:40:10 +0100 [thread overview]
Message-ID: <p73fyqb2dtx.fsf@verdi.suse.de> (raw)
In-Reply-To: <436AA1FD.3010401@vmware.com>
Zachary Amsden <zach@vmware.com> writes:
>
> He won't like me too much. I'll write up a proper patch for this, a la
> mode de rdmsr_safe / wrmsr_safe. At least it's not a bug, just missing
> information.
I don't think it's a good idea. Relying on nested faults in oops
is a bit unsafe because it could lead to recursive faults in the worst case.
Yes it does it already with __get_user, but that
is only last resort. You would make it default on these systems.
Better keep the if
-Andi
next prev parent reply other threads:[~2005-11-05 17:40 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-03 16:12 2.6.14: CR4 not needed to be inspected on the 486 anymore? Maciej W. Rozycki
2005-11-03 16:34 ` Zachary Amsden
2005-11-03 17:20 ` Maciej W. Rozycki
2005-11-03 23:49 ` Zachary Amsden
2005-11-05 17:40 ` Andi Kleen [this message]
2005-11-07 9:38 ` Maciej W. Rozycki
2005-11-07 15:44 ` Zachary Amsden
2005-11-07 16:37 ` Maciej W. Rozycki
2005-11-07 16:51 ` Zachary Amsden
2005-11-07 17:00 ` linux-os (Dick Johnson)
2005-11-07 17:32 ` Zachary Amsden
2005-11-07 18:17 ` linux-os (Dick Johnson)
2005-11-07 19:02 ` Ondrej Zary
2005-11-07 17:11 ` Maciej W. Rozycki
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