Re: STI architectural question (and lretq -- I'm not even kidding)

[Andi Kleen]

> I think that, other than broadcast MCEs, #MC that hits in kernel mode
> is non-recoverable, or at least can't safely be recovered.  (There's a
> separate APIC interrupt for recoverable errors, I think, but that's a
> much saner interface.)

There are multiple valid cases where #MC can return.

-Andi
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