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

From: Luck, Tony
Date: Mon Nov 17 2014 - 19:22:27 EST

> It could also be interesting to tweak mce_panic to not actually panic
> the machine but to try to return and stop the test instead. Then real
> debugging could be possible :)

The lost cpu is *really* lost. Warm reset doesn't fix the machine, I usually
have to do a full power cycle.

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