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SubjectRe: [RFC PATCH] x86 NMI-safe INT3 and Page Fault (v5)
* Andi Kleen (andi@firstfloor.org) wrote:
> Mathieu Desnoyers <compudj@krystal.dyndns.org> writes:
> >
> > It allows placing immediate values (and therefore optimized trace_marks) in NMI
> > code
>
> Only if all your trace_mark infrastructure is lock less.
>
> -Andi
>

It uses RCU-style updates and has been designed to be lockless from the
ground up.

Mathieu

--
Mathieu Desnoyers
Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68


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