Re: [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace

[Tony Luck]

> Innocent bystanders have RIPV=1, EIPV=0 in MCG_STATUS ... so they
> are quite easy to spot.

Bother ... except for the SRAO cases where *everyone* is an innocent
bystander - but someone should go look for the error and queue up
a page offline event.  Perhaps for this we'd do the self-ipi trick and
then scan the banks to look for SRAO signatures to process as well
as clearing MCIP

-Tony
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