Subject: RE: Override timer interrupt

From: Benjamin Herrenschmidt <[email-masked]>
Date: Tue, 16 Oct 2007 07:58:18 +1000

On Mon, 2007-10-15 at 16:50 -0500, Rune Torgersen wrote:
> Huh? Not in 2.6.18/arch/ppc at least, unless I'm completely
> misundrstanding the code.
> ppc/powerpc seems to be using clocksource_jiffies as the clock source,
> and teh gettimeofday gets xtime + a offset from last jiffie, and xtime
> is updated with a fixed amount per tick.
> 
> Things have changed a lot since I last delved deep into this to try to
> ge an accurate freerunning clock (2.6.12).

Hrm... 2.6.18 doesn't have clock sources in the first place, what kernel
are you using ?

Ben.