Bug#923346: This problem is not a ptp4l bug

[Geva, Erez]

It is more likely a specific driver in kernel issue

See mailing in the linuxptp dev mailing
https://sourceforge.net/p/linuxptp/mailman/linuxptp-devel/?viewmonth=201903&viewday=12

I recommend this bug report be removed.

Thanks
  Erez Geva