-g screqup (from IRC)
hmurray at megapathdsl.net
Mon Sep 12 20:26:38 UTC 2016
> 12:09:40 gemiller
> | "killall ntpd; sleep 1; ntpd -N -g"
> | screws up the clock for over a day,
> | much better without the -g
You have either found a very interesting bug or you are on a wild goose chase.
The -g switch is supposed to be very simple. It allows a large initial step.
Other than that, it shouldn't do anything.
Are you getting steps at all? grep your ntpd.log for "clock_step". It needs
lots of logging turned on. You can test it with the bump option in ntpfrob.
steps are reasonably common at first-boot. The size of the step depends upon
how good your TOY/CMOS clock is.
There is a reasonable common case that I don't like that may be causing you
troubles. The default is to use the first server that responds. That is
likely to be off quite a bit if you are comparing it to a PPS setup that
works well. (But that has nothing to do with -g)
These are my opinions. I hate spam.
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