Re: [PATCH -tip, final] perf, x86: Add hw_watchdog_set_attr() in asake of nmi-watchdog on P4

[Ingo Molnar]

* Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> wrote:

> On Tue, 2011-07-05 at 15:31 +0200, Ingo Molnar wrote:
> > So there's lots of options to fix/improve this more intelligently.
> 
> Sure, and I like the alternative encoding thing best, but doing 
> that will take time, in the meantime this patch, which is 
> relatively small (and easy to revert once we get something better 
> going) does fix a problem for those few unfortunate souls still 
> using P4 hardware.

Well, the BUS_CYCLES thing looks similarly straightforward and should 
result in an even simpler patch.

On P4 BUS_CYCLES would be able to co-exist with CPU_CYCLES so it will 
solve the P4 issue naturally as well.

Thanks,

	Ingo
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