Messages in this thread | | | Subject | Re: Linux 2.6.29-rc6 | From | john stultz <> | Date | Fri, 27 Feb 2009 12:35:36 -0800 |
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On Fri, 2009-02-27 at 07:47 +0100, Jesper Krogh wrote: > john stultz wrote: > > Jesper: How long was the box up for when you noticed the ntpd noise? > > I was booted Feb 25 21:58 .. the first noice from ntp starts here: > Feb 25 22:09:53 quad12 ntpd[4901]: synchronized to LOCAL(0), stratum 13 > Feb 25 22:09:56 quad12 ntpd[4901]: synchronized to 10.194.133.13, stratum 4 > Feb 25 22:14:08 quad12 ntpd[4901]: synchronized to LOCAL(0), stratum 13 > Feb 25 22:16:20 quad12 ntpd[4901]: synchronized to 10.194.133.13, stratum 4 > Feb 25 22:32:25 quad12 ntpd[4901]: time reset -1.601641 s > Feb 25 22:36:18 quad12 ntpd[4901]: synchronized to LOCAL(0), stratum 13 > Feb 25 22:36:45 quad12 ntpd[4901]: synchronized to 10.194.133.12, stratum 4 > Feb 25 22:51:41 quad12 ntpd[4901]: time reset -0.922993 s > Feb 25 22:55:05 quad12 ntpd[4901]: synchronized to LOCAL(0), stratum 13
Ok, so that's not very long. I'd expect by now, if the box is still up, the messages have stopped. Is that true, or is it still resetting?
> > Also what's the output of the following under the different kernels: > > ntpdc -c peers > > ntpdc -c kerninfo [snip] > Working (clocksource=tsc) 2.6.26.8 > jk@quad03:~$ ntpdc -c kerninfo > pll offset: 0.003208 s > pll frequency: -25.070 ppm [snip] > Non-working (clocksource=tsc) 2.6.29-rc6 > jk@quad12:~$ ntpdc -c kerninfo > pll offset: 0 s > pll frequency: -34.754 ppm
Ok, so it seems ntp hasn't really had a chance to settle down, its only made a 10ppm adjustment so far. NTPd will stop corrections at ~ +/-500ppm, so you're not at that bound yet, where things would be really broken.
If the affected kernel isn't resetting in the logs anymore, I'd be interested in what the new ppm value is.
thanks -john
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