Good Morning,
I have a new system that I'm trying to setup as a PTP Grandmaster on an in-vehicle network. It will use upstream NTP servers to keep the time largely in sync with the rest of the world. The setup procedures I'm doing largely follow Ouster's PTP Quickstart Guide here: https://static.ouster.dev/sensor-docs/image_route1/image_route2/appendix/ptp -quickstart.html. /etc/linuxptp/ptp4l.conf Changed clockClass from 248 to 128 Appended: boundary_clock_jbod 1 [enp0s31f6] [eth1] [eth2] [eth3] [eth4] [eth5] Created /etc/systemd/system/ptp4l.service.d/override.conf: [Service] ExecStart= ExecStart=/usr/sbin/ptp4l -f /etc/linuxptp/ptp4l.conf Created /etc/systemd/system/phc2sys_<INTERFACE>.service for each of the above 6 ports After enabling services and restarting the system I'm seeing this output: Jun 26 13:41:13 hel-Nuvo phc2sys[8240]: [2617.426] enp0s31f6 sys offset 1457079943513 s0 freq +23999999 delay 4880 Jun 26 13:41:14 hel-Nuvo phc2sys[8240]: [2618.426] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:14 hel-Nuvo phc2sys[8240]: [2618.426] enp0s31f6 sys offset 1457641512370 s0 freq +23999999 delay 4758 Jun 26 13:41:15 hel-Nuvo phc2sys[8240]: [2619.426] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:15 hel-Nuvo phc2sys[8240]: [2619.426] enp0s31f6 sys offset 1458203078781 s0 freq +23999999 delay 4636 Jun 26 13:41:16 hel-Nuvo phc2sys[8240]: [2620.426] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:16 hel-Nuvo phc2sys[8240]: [2620.426] enp0s31f6 sys offset 1458764650543 s0 freq +23999999 delay 5490 Jun 26 13:41:17 hel-Nuvo phc2sys[8240]: [2621.426] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:17 hel-Nuvo phc2sys[8240]: [2621.426] enp0s31f6 sys offset 1459326242869 s0 freq +23999999 delay 5490 Jun 26 13:41:18 hel-Nuvo phc2sys[8240]: [2622.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:18 hel-Nuvo phc2sys[8240]: [2622.427] enp0s31f6 sys offset 1459887820658 s0 freq +23999999 delay 5368 Jun 26 13:41:19 hel-Nuvo phc2sys[8240]: [2623.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:19 hel-Nuvo phc2sys[8240]: [2623.427] enp0s31f6 sys offset 1460449399871 s0 freq +23999999 delay 5490 Jun 26 13:41:20 hel-Nuvo phc2sys[8240]: [2624.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:20 hel-Nuvo phc2sys[8240]: [2624.427] enp0s31f6 sys offset 1461010971817 s0 freq +23999999 delay 5368 Jun 26 13:41:21 hel-Nuvo phc2sys[8240]: [2625.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:21 hel-Nuvo phc2sys[8240]: [2625.427] enp0s31f6 sys offset 1461572561063 s0 freq +23999999 delay 5368 Jun 26 13:41:22 hel-Nuvo phc2sys[8240]: [2626.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:22 hel-Nuvo phc2sys[8240]: [2626.427] enp0s31f6 sys offset 1462134138947 s0 freq +23999999 delay 5368 Jun 26 13:41:23 hel-Nuvo phc2sys[8240]: [2627.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:23 hel-Nuvo phc2sys[8240]: [2627.427] enp0s31f6 sys offset 1462695708258 s0 freq +23999999 delay 5368 Jun 26 13:41:24 hel-Nuvo phc2sys[8240]: [2628.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:24 hel-Nuvo phc2sys[8240]: [2628.427] enp0s31f6 sys offset 1463257288175 s0 freq +23999999 delay 5490 Jun 26 13:41:25 hel-Nuvo phc2sys[8240]: [2629.427] clockcheck: clock jumped forward or running faster than expected! Jun 26 13:41:25 hel-Nuvo phc2sys[8240]: [2629.427] enp0s31f6 sys offset 1463818857383 s0 freq +23999999 delay 4514 It's continuously growing larger and I have no idea what's causing this. On another computer I tried this on I don't believe this was happening, so I'm looking for some help troubleshooting why it's happening. Thanks! Josh Q
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