[RFC/PATCH RESEND -next 05/21] x86: cpu: don't sanitize early stages of a secondary CPU boot

[Andi Kleen]

Andrey Ryabinin <a.ryabinin at samsung.com> writes:

> Instrumentation of this files may result in unbootable machine.

This doesn't make sense. Is the code not NMI safe? 
If yes that would need to be fixed because

Please debug more.

perf is a common source of bugs (see Vice Weaver's fuzzer results),
so it would be good to have this functionality for it.

-Andi

-- 
ak at linux.intel.com -- Speaking for myself only