Dear all,
I have ubuntu 16.04 installed on two different PC , and another embedded "ARM"
based system.
i have installed linuxptp 1.8 on all of them. (i'm using HW sync ptp so i
configured ptp and phc as well)
the ARM system acts as master (it is connected to a gps recevier) , to obtain
that it is always the Grand master i have configured its config file with a low
priority1 (100).
this make it always the grand master of my network.
the system worked for several week without any problem.
i used to check the sync status with
tail -f /var/log/syslog | grep ptp
tail -f /var/log/syslog | grep phc
the output is something similar to
Dec 14 16:08:34 it-eva-driving phc2sys: [23058.294] phc offset 10512340976 s2
freq +100000000 delay 2892
and i can see the offset decreasing until reach the sync and then stay almost
stable under 1 msec of delta from the master on both ptp and phc control loop.
but one day the phc stopped to work , on both PC
I mean:
tail -f /var/log/syslog | grep ptp
show , as usual, the offset decreasing and the stay stable this mean the
ethernet board are in sync.
but with
tail -f /var/log/syslog | grep phc
Dec 14 16:08:34 it-eva-driving phc2sys: [23058.294] phc offset 10512340976 s2
freq +100000000 delay 2892
the offset diverge and always increase..
any idea?
thankyou
Omar
--
Omar Pighi
Sr. Engineer, VisLab
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