Public bug reported:
I have a machine with a serial attached precision reference clock with a
pps accuracy of +/- 1 nanosecond that I have been using as a stratum 1
ntp server for years.
Upon upgrading from 22.04.4 LTS to 24.04.1 LTS ntp went insane.
ntpq -p shows:
xNMEA(0) .PPS. 0 l 12 16 377 0.0000 -96.8229
0.5427
Previously that 'x', which means the source is being rejected, was 'o',
which means the source has pps, and the offset, which now shows as -96
milliseconds was under 1 millisecond.
>From syslog:
ntpd[10299]: REFCLOCK: refclock_params: kernel PLL (hardpps, RFC 1589) not
implemented
ntpd[10299]: REFCLOCK: NMEA(0) set PPSAPI params fails
It appears that the ppsapi has not been implemented in 24.04.1 LTS which
makes it useless as a stratum 1 ntp server.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: ntp ppsapi
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https://bugs.launchpad.net/bugs/2078725
Title:
24.04.1 LTS useless as a stratum 1 ntp server
Status in linux package in Ubuntu:
New
Bug description:
I have a machine with a serial attached precision reference clock with
a pps accuracy of +/- 1 nanosecond that I have been using as a stratum
1 ntp server for years.
Upon upgrading from 22.04.4 LTS to 24.04.1 LTS ntp went insane.
ntpq -p shows:
xNMEA(0) .PPS. 0 l 12 16 377 0.0000 -96.8229
0.5427
Previously that 'x', which means the source is being rejected, was
'o', which means the source has pps, and the offset, which now shows
as -96 milliseconds was under 1 millisecond.
From syslog:
ntpd[10299]: REFCLOCK: refclock_params: kernel PLL (hardpps, RFC 1589) not
implemented
ntpd[10299]: REFCLOCK: NMEA(0) set PPSAPI params fails
It appears that the ppsapi has not been implemented in 24.04.1 LTS
which makes it useless as a stratum 1 ntp server.
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2078725/+subscriptions
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