From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Kalyan Rajasekharuni <kalyan@vmware.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Triggering Machine Check Exceptions on x86
Date: Thu, 23 Mar 2006 14:13:53 +0000 [thread overview]
Message-ID: <1143123234.11163.14.camel@localhost.localdomain> (raw)
In-Reply-To: <4421F89A.2070406@vmware.com>
On Mer, 2006-03-22 at 17:23 -0800, Kalyan Rajasekharuni wrote:
> I would like to trigger a Machine Check Exception soley by a
> 'software mechanism' on my x86 box. The idea is to test my
> machine check exception handler thoroughly. I want a reliable
> way which will generate this exception every time when I run
> the software code snippet.
You will need to ask the CPU vendor I think. You can trigger MCEs on
some x86s by exploiting obscure hardware flaws in supervisor mode
(notably with mismatched memory cache types for the same page) but I
don't know of any way to make that predictable.
Alan
prev parent reply other threads:[~2006-03-23 14:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-23 1:23 Kalyan Rajasekharuni
2006-03-23 14:13 ` Alan Cox [this message]
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