Re: [Linuxptp-users] Bug-report for PTP4l

[Martin P. <pec...@fe...>]

Hi, I've started getting into this issue too on one of my test computers 
(Jetson TX2 + Orbitty Carrier running Ubuntu 18.04). I usually "resolve" 
it by rebooting the computer. After a fresh reboot, software 
timestamping works.

Does a reboot help in your case?

Martin

> Hi,
> The command I am trying to run is
> *sudo ptp4l -i eth0 -m -S*
>
> The response I am seeing is:
> port 1 (eth0): send sync failed
> ptp4l[687780.178]: port 1 (eth0): MASTER to FAULTY on FAULT_DETECTED
> (FT_UNSPECIFIED)
> ptp4l[687796.179]: port 1 (eth0): FAULTY to LISTENING on INIT_COMPLETE
> ptp4l[687803.557]: port 1 (eth0): LISTENING to MASTER on
> ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
> ptp4l[687803.557]: port 1 (eth0): assuming the grand master role
> ptp4l[687804.567]: timed out while polling for tx timestamp
> ptp4l[687804.568]: increasing tx_timestamp_timeout may correct this issue,
> but it is likely caused by a driver bug
> ptp4l[687804.568]: port 1 (eth0): send sync failed
> ptp4l[687804.568]: port 1 (eth0): MASTER to FAULTY on FAULT_DETECTED
> (FT_UNSPECIFIED)
> ptp4l[687820.568]: port 1 (eth0): FAULTY to LISTENING on INIT_COMPLETE
> ptp4l[687826.779]: port 1 (eth0): LISTENING to MASTER on
> ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES
> ptp4l[687826.780]: port 1 (eth0): assuming the grand master role
> ptp4l[687827.790]: timed out while polling for tx timestamp
> ptp4l[687827.790]: increasing tx_timestamp_timeout may correct this issue,
> but it is likely caused by a driver bug
> ptp4l[687827.790]: port 1 (eth0): send sync failed
> ptp4l[687827.790]: port 1 (eth0): MASTER to FAULTY on FAULT_DETECTED
> (FT_UNSPECIFIED)
>
> My system is an Ubuntu 20.04 VM hosted on MS Azure.
>
> If I disable the -S flag and run the ptp4l on HW mode for the other
> interface of my system, it works fine.
> *sudo ptp4l -i enP48399s1 -m*
>
> This interface does not support the -S flag. So, I am trying the -S flag on
> the other existing interface eth0. Do you have any suggestions on how to
> make the SW PTP run on the eth0 interface?