Re: Fwd: Re: [PATCH] linux-2.5.54_delay-cleanup_A0

From: john stultz (
Date: Mon Jan 20 2003 - 14:23:22 EST

On Sat, 2003-01-18 at 05:54, Pavel Machek wrote:

> Well, loop_delay() was big (fatal!) problem -- it can actaully wait
> for *less* time than told to. That happens if notebook boots during
> "battery low" and than goes to AC power. Thinkpad 560X is example of
> such behaviour. Slow (but working!) PIT seems to be only option on
> such machine.

I need to look more at the cpu_freq code, but I suspect it could it help
solve or lessen the problem (if we can detect the event on those older
systems). Regardless, you make a good point, so if I get the time I'll
look into a real PIT based delay.

Thanks for the feeback.

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