On Wed, Jul 23, 2014 at 2:18 PM, Andi Kleen <[email protected]> wrote: > Andy Lutomirski <[email protected]> writes: > >> I think an MCE just might be okay -- it's not >> really recoverable anyway. > > That's wrong.
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.) Regardless, I put in a fixup in the patches I sent out -- they should be just as safe as existing code if a #MC hits right after sti. I have no idea how to test that, though... --Andy > > -Andi > > -- > [email protected] -- Speaking for myself only -- Andy Lutomirski AMA Capital Management, LLC -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
