On 2/17/2012 09:23, Dave Hart wrote:
On Fri, Feb 17, 2012 at 16:44, unruh<[email protected]> wrote:
On 2012-02-17, Dave Hart<[email protected]> wrote:
On Fri, Feb 17, 2012 at 06:06, A C<[email protected]> wrote:
What I've noticed is that normally the clockstats is updated once per second
as the PPS ticks. ?However, during a query by the remote ntpq instance, the
clockstats file pauses for about one second and then resumes. ?You can see
it below in a direct copy from the clockstats file. ?There's a missing
'tick' at 21828 seconds and one at 21832. ?PPS is most certainly ticking at
these times. ?It is extremely obvious, when the two terminal windows are
side by side, that the ntpq poll freezes ntpd.
Round those figures in the 2nd column to whole seconds and you'll note
there are no missing PPS events. You don't say which ntpq query, so
Uh. Yes, there are!. Maybe no the ones he mentions, but there are
missing seconds.
The rounded figures are
23 24 26 27 28 29 31 32 33
^ ^
Good catch, I obviously need to get more sleep.
I restarted ntpd and everything seems to be fine now. This had worked
very well up until last night when I was getting the missing seconds.
After restarting ntpd, the condition went away. I'm watching ntpq poll
ntpd regularly and the clockstats file is not missing an update anymore.
I'll keep watching it as it runs to see if it comes back. Now to follow
the PPM vs. flag3 trail plus finish compiling the fixes to libc (the
libc error has been found).
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