RE: [chrony-users] Refclock Integration Advice

["Chang, Benjamin" <Benjamin.Chang@xxxxxxxxxxxxxxx>]

So it does seem like the PPS isn't updating my timestamps. 
However, ppswatch does receive updated timestamps? See attached. 

What could be causing my PPS to "register" but not update timestamps? That seems counterintuitive to the system (granted I am a rookie in all this). 

Thank you once again for all your help,
Ben Chang

-----Original Message-----
From: Miroslav Lichvar <mlichvar@xxxxxxxxxx> 
Sent: Monday, November 23, 2020 9:42 AM
To: chrony-users@xxxxxxxxxxxxxxxxxxxx
Subject: Re: [chrony-users] Refclock Integration Advice

On Mon, Nov 23, 2020 at 02:38:05PM +0000, Chang, Benjamin wrote:
> So interestingly, upon playing with ppstest and ppswatch, when I run chronyd -d -d, it causes timeouts/connection timed out. However, if I run ppstest and ppswatch simultaneously without chrony -d -d, I don't get time outs.

Hm, maybe the way ppstest waits for PPS samples doesn't work with concurrent access. Try the following shell command instead of ppstest.

while sleep 1; do cat /sys/class/pps/pps0/assert; done

--
Miroslav Lichvar


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