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

Ingo Molnar
2008-02-25T10:16:20Z

* Yi Yang <yi.y.yang@intel.com> 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?

Ingo