On Thu, Nov 06, 2014 at 06:32:37PM +0000, Luck, Tony wrote:
> > Basically, this check is being done only for machine check exceptions
> > only.
>
> But you proposed setting excp by looking at mcg_status:
> > excp = ((m->mcg_status & MCG_STATUS_MCIP) ? EXCP_CONTEXT : NO_EXCP);
>
> Which makes the code rather self referential. If we actually did arrive in
> MCE handler
> with MCIP == 0 ... then your code would pretend that we'd arrived here from
> the
> poll code, and skip over the test for MCIP - so fail to report that MCIP
> wasn't set.
Is that ever possible - to have a discrepancy between the setting of
MCIP and where we call mce_severity()?
I'm under the assumption that at all times, when we get a MCE, MCIP will
be set. For example, mce_gather_info() reads MCG_STATUS before we call
mce_severity() in do_machine_check().
Or am I missing something?
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
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