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

From: Andrey Ryabinin
Date: Thu Jul 10 2014 - 09:20:55 EST

On 07/09/14 23:33, Andi Kleen wrote:
> Andrey Ryabinin <a.ryabinin@xxxxxxxxxxx> 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.

It turns out that KASAN_SANITIZE_perf_event.o := n is not needed here.
The problem only with common.c

> 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

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