Re: [tip:perfcounters/core] perf_counter: x86: Fix call-chain support to use NMI-safe methods

H. Peter Anvin
2009-06-15T22:41:10Z

Mathieu Desnoyers wrote:
>
> I'm just thinking that touching or not vmalloc'd areas should not be the
> first thing that comes into the mind of someone willing to write a
> nmi-hooking tracer or oprofile module.
>

But is HAS to be. Otherwise you're in deadlock city anyway.

-hpa