| Re: [chrony-dev] chronyd not recovering after time stepped. |
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On Thu, Aug 27, 2015 at 11:35:02PM +1200, Bryan Christianson wrote:
> > On 27/08/2015, at 11:24 pm, Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:
> > That is odd. How long is the polling interval? It shouldn't take more
> > than 6-10 new measurements after the step for the frequency to get close
> > again to the right value and correct any remaining offset.
>
> The polling interval is 8 seconds. And indeed, when I restart chronyd it only takes a few cycles to correct the offset.
> I'm not seeing any significant change in frequency, maybe 1ppm (from 17.5 ppm) for just a few samples after the step and then back to 17.5.
Ok, that probably means it's something in the driver or the kernel.
It might help us to see what values at what time is adjtime() getting
and what it returns.
--
Miroslav Lichvar
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