Re: x86_pmu_start WARN_ON.

[Steven Rostedt]

On Thu, 20 Feb 2014 19:15:38 +0100
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:


> I think by using the /debug/tracing/events/ftrace/function event, but
> I'm not actually sure, I've never used it nor did I write the code to do
> it. Jolsa did all that IIRC.
> 
> All I know is that we had some 'fun' bugs around there sometime back.

Note, the function tracer now has a lot better recursion protection than
it use to.

-- Steve
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