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    SubjectRe: Linux 2.6.29-rc6
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    On Tue, 2009-03-03 at 07:04 +0100, Jesper Krogh wrote:
    > john stultz wrote:
    > > On Mon, 2009-03-02 at 10:53 +0100, Jesper Krogh wrote:
    > >> john stultz wrote:
    > >>> 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.
    > >> After 20 hours.. its still resetting.
    > >> Mar 2 10:43:24 quad12 ntpd[4416]: synchronized to 10.194.133.12, stratum 4
    > >> Mar 2 10:50:37 quad12 ntpd[4416]: time reset -1.103654 s
    > >
    > > So what's the "ntpdc -c kerninfo" output now?
    >
    > Mar 3 06:41:10 quad12 ntpd[4416]: time reset -0.813957 s
    > Mar 3 06:45:20 quad12 ntpd[4416]: synchronized to LOCAL(0), stratum 13
    > Mar 3 06:45:36 quad12 ntpd[4416]: synchronized to 10.194.133.12, stratum 4
    > Mar 3 06:51:57 quad12 ntpd[4416]: synchronized to 10.194.133.13, stratum 4
    > Mar 3 07:00:29 quad12 ntpd[4416]: time reset -0.783390 s
    > jk@quad12:~$ ntpdc -c kerninfo
    > pll offset: 0 s
    > pll frequency: -28.691 ppm


    This is baffling. You've only gone from -34.754ppm to -28.691ppm in over
    a day? And you're still not syncing? If the calibration was so bad that
    NTP couldn't sync, I'd expect the freq value to hit +/-500ppm before it
    gave up. This just doesn't follow my expectations.

    Could you provide:
    /usr/sbin/ntpdc -c version

    Do you see the same behavior if you drop all but one server (including
    the local clock: 127.127.1.0)?

    You might also add "minpoll 4 maxpoll 4" to the server line to speed up
    testing.

    Actually, if you could, I'd be interested if you could send your
    ntp.conf

    thanks
    -john




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