Re: [PATCH 00/10][RFC] Increased clocksource validation and cleanups

From: John Stultz
Date: Mon Jan 12 2015 - 13:22:18 EST


On Sun, Jan 11, 2015 at 3:41 AM, Richard Cochran
<richardcochran@xxxxxxxxx> wrote:
> On Fri, Jan 09, 2015 at 04:34:18PM -0800, John Stultz wrote:
>> So this series is the result of earlier discussions with Linus
>> and his suggestions around improvements to clocksource validation
>> in the hope we can more easily catch bad hardware.
>
> Why penalize most users just because of a random hardware failure?
> Why not make the "catching code" a compile time option?

Yea, I've not looked at the actual performance impact yet, but things
like the read-time capping (which is in the hot path) could be put
under a debug config. Thanks for the suggestion!
-john
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