[chrony-users] PTP TAI Query

[Chris Hodgetts <chris@xxxxxxxxxxxxxxxx>]

Hello, 

I have just upgraded to chrony version 4.6.1 on Debian 13 

I have noticed my PTP time has not failed, and it appears to be when I put : 

refclock PHC /dev/ptp0 poll 0 dpoll 0 tai

If I remove tai - I get 37 second offset and Chrony does not sync to PTP. 

This is my current config 

# Include additional configuration
confdir /etc/chrony/conf.d
sourcedir /etc/chrony/sources.d
sourcedir /run/chrony-dhcp

# PTP Hardware Clock as main reference
refclock PHC /dev/ptp0 poll 0 dpoll 0 tai

# Public NTP pool + HE.net as fallback
pool pool.ntp.org iburst
server clock.sjc.he.net iburst

# Allow local LAN access (optional)
allow

# Drift file
driftfile /var/lib/chrony/chrony.drift

# Real-time clock sync
rtcsync

# Step on large offsets only at boot
makestep 1 3

# TAI/UTC leap second information
leapsectz right/UTC

# Hardware timestamping
hwtimestamp *

logdir /var/log/chrony
maxupdateskew 100.0

- 

I know my PTP can only output TAI - and this seems to be a new issue I think, as all documentation I can see suggests I am doing things correctly ….

Can any one please suggest what I might try to resolve this? 

Thanks in advance, 



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