Re: [opensuse] chrony and hwclock



Roger Oberholtzer wrote:

On Mon, 2011-07-18 at 12:05 +0200, Per Jessen wrote:

To stick to the legal metaphors, I think the judge will dismiss your
claim as hear-say :-) At least until you present evidence that the
server is configured but not used ("ntpq -p" will show the peers).


I finally got a chance to run this (after boot, logged in and network
up, time still wrong):

# ntpq -p
ntpq: read: Connection refused

At this point, could you also do 'pidof ntpd', please. I'm pretty
certain ntpd isn't running.

After boot (real time was 21.48), I see this is /var/log/messages:

Jul 18 23:48:59 barracuda ntpd[3033]: ntpd 4.2.6p3@xxxxxxxx Tue Jun 7
03:10:56 UTC 2011 (1) Jul 18 23:48:59 barracuda ntpd[3034]: proto:

So the question now is - _who_ adjusted the system clock? It was _not_
ntpd, because that is only just starting.

/var/log/ntp has (wireless up at 23:54:00):

18 Jul 23:48:59 ntpd[3034]: Deferring DNS for ntp1.sth.netnod.se 1
18 Jul 23:49:02 ntpd[3069]: host name not found: ntp1.sth.netnod.se
18 Jul 23:50:04 ntpd[3069]: host name not found: ntp1.sth.netnod.se
18 Jul 23:52:06 ntpd[3069]: host name not found: ntp1.sth.netnod.se
18 Jul 23:54:00 ntpd[3034]: Listen normally on 4 wlan0 192.168.1.17
UDP 123 18 Jul 23:54:01 ntpd[3034]: Listen normally on 5 wlan0
fe80::227:10ff:fe71:6724 UDP 123 18 Jul 23:54:01 ntpd[3034]: peers
refreshed 18 Jul 23:54:01 ntpd[3034]: new interface(s) found: waking
up resolver 18 Jul 23:54:03 ntpd[3069]: DNS ntp1.sth.netnod.se ->
192.36.144.22

what about the next 20-30mins of log?

My /etc/sysconfig has:

NTPD_OPTIONS="-g -u ntp:ntp"

My /etc/ntp.conf file is:

server 127.127.1.0
fudge 127.127.1.0 stratum 10
driftfile /var/lib/ntp/drift/ntp.drift
logfile /var/log/ntp
keys /etc/ntp.keys
trustedkey 1
requestkey 1
server ntp1.sth.netnod.se iburst

All fine.

So, it seems that the time source is retried, but nothing happens.
And, the -p option is failing.

Because ntpd has left the building.

A wild guess at what is happening - before ntp starts, something adjusts
your system clock 2 hours forward. ntp starts, but has no network, so
just resumes normal working mode. Network comes up, ntpd say "yippee!",
gets fresh time from netnod.se and then leaves as the time gap is more
than the sanity check of 1000s.


--
Per Jessen, Zürich (16.4°C)

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