frequency tolerance: 500

[Udo van den Heuvel]

On 31-03-19 13:16, Achim Gratz via devel wrote:
>> 186 is not sensible.
>> When I set it to 0.000 it still goes way up.
> 
> As long as the time is that much off, yes it'll do that.

Time is not that much off.
It also happens when I sync the clock manually and then start ntpd.

> Does anything in the boot log complain about unstable clock sources and
> or switching between different ones?

It switches only during bootup.
Nothing unstable (?) to be seen.

> How is the GPS connected and how do you get the PPS in?

Same as it ever was:
Garmin GPS18X getting power from USB, PPS is coming in on DCD I believe.

>> Or we get this absurd PLL frequency. (4.19.23).
> 
> Same thing most likely.

Same thing as what?

>> Of course this might just be timing, depending on how soon after bootup,
>> at what spot in the PPS cycle ntpd came online.
> 
> No.  It's a problem with how you set up your GPS.  It's registers with a
> too large offset.

When I switch the GPSses (I have two) the GPS works fine in the other
box. So something on this box is hosed and I ruled out wiring, I guess.
I reset the GPS configuration, I changed PPS pulse length, etc.

And I did not change anythign when this started, I simply rebooted into
a different kernel.

>> But I am not yet convinced of that.
>> Restarting leads to same results.
> 
> Yes, as long as you don't correct the setup 

What is not correct?

> over and over.  Care to show your ntp.conf next time?


# grep -v ^# /etc/ntp.conf |grep -v ^$
driftfile /var/lib/ntp/drift
restrict default nomodify nopeer noquery
restrict -6 default nomodify nopeer noquery
restrict 127.0.0.1
restrict -6 ::1
restrict 192.168.10.0 mask 255.255.255.0 nomodify
refclock nmea unit 0 mode 7 flag3 0 flag2 0 flag1 1 time1 0.00000006
time2 0.260 baud 4800
disable monitor
server 192.168.10.98 minpoll 4 iburst
server fd01:c1a8:a01:2::1
server ntp.xs4all.nl
server ntp2.xs4all.nl
server ntp0.nl.net
server ntp2.nl.net
server keetweej.vanheusden.com
server ntp.nmi.nl
includefile /etc/ntp/crypto/pw
keys /etc/ntp/keys
statsdir /var/log/ntp/



Not so complex....

Udo