> Is there any reason why, with proper MCE checking for both K7 and PIII
> we can't automatically off-line processors when they start doing bad
> things?
Architectural limitations. Its entirely possible that the cache of the dying
processor contains exclusive copies of arbitary data.
> Also, I'm pretty sure I was seeing overheating problems or something
> on a K7 at one point, but never saw MCE; I take it this code only
> exists fully in -ac kernels? I looked in Linus' tree and couldn't see
> anything.
Only -ac has K7 MCE enabled right now - also MCE is not guaranteed to catch
problems.
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