On Tue, 10 Dec 2013, Namhyung Kim wrote:

> Hi Vince,
> Okay, the reason I set the bit was consideration of a very strict
> perf_event_paranoid setting (-2).
> 
> So maybe we can try it again with the bit cleared after a failure, or
> checking the paranoid setting first.

If perf_event_paranoid is set to 2 then you should get EPERM rather than 
ENOENT or EINVAL, right?  Maybe that could be used too.

As a side note, why doesn't paranoid 2 block events that don't have
exclude_hv set?

Vince
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