Re: [PATCH 2.6.25-rc3] cpuidle: fix cpuidle time and usage overflow

[Yi Yang]

On Mon, 2008-02-25 at 11:15 +0100, Ingo Molnar wrote:
> * Yi Yang <yi.y.yang@xxxxxxxxx> wrote:
> 
> > cpuidle C-state sysfs node time and usage are very easy to overflow 
> > because they are all of unsigned int type, time will overflow within 
> > about two hours, usage will take longer time to overflow, but they are 
> > increasing for ever.
> > 
> > This patch will convert them to unsigned long long.
> 
> what happens if such an overflow happens - any particular regression or 
> other misbehavior, or just funny looking stats in sysfs?
They are just stats info in sysfs, cpuidle's behaviors don't depend on
them. I didn't notice any regression or misbehaviors.

> 
> 	Ingo
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