Re: [Linuxptp-users] ptp4l and SHM?

[Miroslav L. <mli...@re...>]

On Fri, Oct 27, 2017 at 12:29:40PM -0700, Gary E. Miller wrote:
> Yo All!
> 
> About a year ago I was running tests feeding time from ptp4l to 
> ntpd using a SHM.  I just repeated the experiment after updating
> my linuxptp to git head, and now no luck.

> My logs show that ptp4l has found a master:
> 
> Oct 27 12:22:02 spidey ptp4l[25614]: [3704655.074] tx_type   1 not 1
> Oct 27 12:22:02 spidey ptp4l[25614]: [3704655.074] rx_filter 1 not 12
> Oct 27 12:22:02 spidey ptp4l[25614]: [3704655.074] selected best master clock 0cc47a.fffe.72716b

This could be the local clock.

Is there a "LISTENING to UNCALIBRATED on RS_SLAVE" message in the log?
If not, ptp4l is probably not receiving master's messages, e.g. due to
firewall or switch configuration.

-- 
Miroslav Lichvar