Re: [PATCH 2/2] perf: SNB exclusive PMU access forINST_RETIRED:PREC_DIST

From: Andi Kleen
Date: Fri Oct 19 2012 - 13:20:10 EST

> > > This isn't limited to admin, right? So the above turns into a DoS on the
> > > console.
> > >
> > Ok, so how about a WARN_ON_ONCE() instead?
> That should be fine I guess ;-)

imho there is need for a generic mechanism to return an error string
to the user program without such hacks.


ak@xxxxxxxxxxxxxxx -- Speaking for myself only
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at