[ntp:questions] Re: Question to NTP developers

Harlan Stenn stenn at ntp.isc.org
Wed Aug 23 18:37:59 UTC 2006

The comment just above the line in ntp_loopfilter.c that generates that
message says:

 Declare PPS kernel unsync if the pps signal has not been heard for
 a few minutes.

so I'd guess the problem is that ntpd had not heard any pps signals for
PPS_MAXAGE for 120 seconds (the current value of PPS_MAXAGE in


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