[LinuxPPS] ntp update

[William S. Brasher]

On Mon, 26 Oct 2009, Udo van den Heuvel wrote:

> On 2009-10-26 05:19, William S. Brasher wrote:
> >> Yay!!!
> >>
> >> https://support.ntp.org/bugs/show_bug.cgi?id=610#c84
> > 
> > I have applied the patch from bugzilla to ntp-dev-4.2.5p236-RC and it does 
> > not work for me.  Ntpd does not sync for me even after several hours of 
> > waiting.  It does seem that refclock_nmea now "sees" the pps pulse, it is 
> > just that ntpd won't sync to either GPS_NMEA or PPS.  I haven't had a 
> > chance to investigate further, so it may be ntpd is not configured 
> > properly.
> 
> William,
> 
> Are you sure the ntpd opened both devices?
> The patch treats them slightly different from the original patch.
> 
> Also the fudge behaviour of ntp-dev is different from the release
> version if I recall correctly. See the documentation on the ntp wiki for
> the NMEA refclock.
> 
> Kind regards,
> Udo
> 
> 

I haven't had a chance yet to see what's happening; I am in the process of 
fetching the latest ntp-dev-4.2.5p237-RC which has the bug 610 fix.  I 
will use that version to make sure the problem wasn't in how I did the 
patching thing.

I have changed some things in the ntp configuration file for the 
development version, such as enabling PPS in the NMEA refclock, for 
example.  The whole leap-second, security, encryption stuff has changed, 
and I haven't changed my configuration to use it with the development 
version of ntpd.

Since others are using the ntpd development version, I suspect the 
problems I am having are due to an error in configuration. Now, to find 
and verify that... :)