ts2phc[9038.883]: [ts2phc.2.config] nmea: no valid rmc fix
ts2phc[9038.883]: [ts2phc.2.config] ens7f3 extts index 0 at 1690227765.005382336 corr 0 src 10661.4096 diff 1690217104005382336
ts2phc[9038.883]: [ts2phc.2.config] ens7f3 ignoring invalid master time stamp

ptp-operator.v4.13.0-202307201923
same messages also appeared in log when this SNO was configured with 4.14 

100%
 

1. Deploy SNO with GM ptpconfig and ptp-operator
2. Check linuxptp-daemon-container:
[kni@registry.kni-qe-28 ~]$ oc logs -n openshift-ptp linuxptp-daemon-xhm2w linuxptp-daemon-container --since=10s
ptp4l[9036.997]: [ptp4l.0.config] master offset         -2 s2 freq  -95907 path delay       331
phc2sys[9037.005]: [ptp4l.2.config] CLOCK_REALTIME phc offset         8 s2 freq   +1700 delay    515
ptp4l[9037.008]: [ptp4l.1.config] master offset        -11 s2 freq  -10702 path delay       303
ptp4l[9037.060]: [ptp4l.0.config] master offset         23 s2 freq  -95864 path delay       332
phc2sys[9037.068]: [ptp4l.2.config] CLOCK_REALTIME phc offset        -7 s2 freq   +1688 delay    513
ptp4l[9037.071]: [ptp4l.1.config] master offset         -5 s2 freq  -10693 path delay       302
ptp4l[9037.122]: [ptp4l.0.config] master offset        -56 s2 freq  -95997 path delay       338

[ ... ]

phc2sys[9037.380]: [ptp4l.2.config] CLOCK_REALTIME phc offset        15 s2 freq   +1708 delay    509
ptp4l[9037.435]: [ptp4l.1.config] master offset         -5 s2 freq  -10693 path delay       302
ptp4l[9037.435]: [ptp4l.0.config] master offset          7 s2 freq  -95890 path delay       332
ts2phc[9037.438]: [ts2phc.2.config] nmea sentence: GNRMC,,V,,,,,,,,,,N,V
ts2phc[9037.438]: [ts2phc.2.config] nmea sentence: GNGGA,,,,,,0,00,99.99,,,,,,
phc2sys[9037.443]: [ptp4l.2.config] CLOCK_REALTIME phc offset        15 s2 freq   +1712 delay    509

[ ... ]

ptp4l[9037.872]: [ptp4l.0.config] master offset         53 s2 freq  -95815 path delay       323
ptp4l[9037.872]: [ptp4l.1.config] master offset         -6 s2 freq  -10696 path delay       304
phc2sys[9037.881]: [ptp4l.2.config] CLOCK_REALTIME phc offset        10 s2 freq   +1716 delay    510
ts2phc[9037.883]: [ts2phc.2.config] nmea: no valid rmc fix
ts2phc[9037.883]: [ts2phc.2.config] ens7f3 extts index 0 at 1690227764.005382336 corr 0 src 10661.4096 diff 1690217103005382336
ts2phc[9037.883]: [ts2phc.2.config] ens7f3 ignoring invalid master time stamp
ptp4l[9037.935]: [ptp4l.0.config] master offset         35 s2 freq  -95841 path delay       323

Full 10s log here: https://drive.google.com/file/d/1fTsAmx98vfpWTyIJdUaq3OF9L4Gz2f2v/view?usp=sharing

ts2phc[9037.883]: [ts2phc.2.config] nmea: no valid rmc fix ts2phc[9037.883]: [ts2phc.2.config] ens7f3 extts index 0 at 1690227764.005382336 corr 0 src 10661.4096 diff 1690217103005382336 ts2phc[9037.883]: [ts2phc.2.config] ens7f3 ignoring invalid master time stamp

spoke must-gather here:  https://drive.google.com/file/d/1n45Rw9JjpFaVuT7zf27bMs_Bm1yhuRwy/view?usp=sharing