[PATCH,RFC] PPC32 Machine Check Handling

Tom Rini trini at kernel.crashing.org
Sat Aug 28 08:12:04 EST 2004

On Fri, Aug 27, 2004 at 11:26:29AM +0100, Adrian Cox wrote:

> The attached patch rearranges PPC32 machine check handling in order to
> test for internal CPU failures before signalling user processes. This
> makes the behaviour match that of i386.
> The patch currently only changes behaviour for 6xx processors. It does
> not enable any extra causes of machine check, but it will turn internal
> CPU faults into kernel panics rather than signals.
> The PowerMac and Qspan specific code is moved into platform files. There
> don't seem to be any boards in the tree that actually use Qspan PCI. I'd
> like to hear test reports for PowerMac machines that take machine checks
> on I/O faults.
> Paul, Tom: This isn't the finished version, but is there any chance of
> something like this going mainstream?  The current behaviour makes it
> very hard to separate chip failures and cooling problems from
> application bugs.

This seems like a fine idea to me.

Tom Rini

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