Re: Kernel panic: Machine check exception

From: Andi Kleen
Date: Tue Dec 06 2005 - 13:46:30 EST


On Tue, Dec 06, 2005 at 10:45:36AM -0800, Avuton Olrich wrote:
> On 06 Dec 2005 12:45:44 -0700, Andi Kleen <ak@xxxxxxx> wrote:
> > ebiederm@xxxxxxxxxxxx (Eric W. Biederman) writes:
> > >
> > > To decode an Opteron machine_check you can look in
> > > the bios and kernel programmers guide. (Possibly the
>
> > mcelog --ascii decodes the "final" machine checks output
> > by the 64bit kernel. The normal recoverable machine checks
> > should be decoded at runtime assuming your distribution
> > set it up right (normally into /var/log/mcelog)
>
> That also works on kernel panic?

The automatic logging doesn't work during panic, but if you
redirected the output of the kernel panic to some other machine
(using serial console etc) you can pipe that log
into it for decoding.

-Andi
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