Yo Miroslav!

On Tue, 24 Feb 2015 08:24:00 +0100
Miroslav Lichvar <mlich...@redhat.com> wrote:

> On Mon, Feb 23, 2015 at 06:48:51PM -0800, Gary E. Miller wrote:

> > WTF was that???
> 
> Hm. Are you running 1.5 or current git? I'm not sure if it could
> explain this, but there was a bug in 1.5 affecting the shm servo.

I am running git head.  I just checked and I am in sync with the
git master.

> >     ptp4l[365.571]: clockcheck: clock jumped forward or running
> > faster than expected!
> 
> Looks like something else than ptp4l is touching the PHC.

How can that be?  I do "killall ptp4l phc2sys" in my test script.

> Also, how is the PTP master synchronized? Is it a PHC synchronized
> from the system clock (phc2sys -a -r -r) which is synchronized by
> chronyd/ntpd/gpsd?

The PTP master is timestamp software and works fine with timestamp
software slaves.  The master is synced from ntpd.  The master
config is here:

http://www.catb.org/gpsd/gpsd-time-service-howto.html#_providing_local_ntp_service

For my timestamp hardware tests I am just changing one of my timestamp
hardware slaves into a timestamp hardware slave.  Just long enough to
screw up the slave clock.  Then I go back to timestamp software.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
        g...@rellim.com  Tel:+1(541)382-8588

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