Re: [gpsd-dev] GPSd on FreeBSD

[Gary E. Miller]

Yo Daniel!

On Tue, 10 Sep 2019 16:39:05 +0930
"O'Connor, Daniel" <address@hidden> wrote:

> > On 10 Sep 2019, at 13:55, Gary E. Miller <address@hidden> wrote:  
> >>>> 
> >>>> I think NTP must be using PPS otherwise the jitter would be much
> >>>> higher.    
> >>> 
> >>> Your ntpmon showed that you were NOT using the local time from
> >>> gpsd!    
> >> 
> >> Yes, as above.  
> > 
> > The ntpmon showed your system was not using local NTP either.  So
> > you still have not shown your PPS works with NTP.  
> 
> This output:
>     remote           refid      st t when poll reach   delay   offset
>  jitter
> ==============================================================================
> o127.127.20.0    .GPS.            0 l    6   16  377    0.000
> -0.018   0.002 -10.0.2.1        214.52.129.40    3 u   33   64  377
>  0.229   -1.949   0.044 0.au.pool.ntp.o .POOL.          16 p    -
> 64    0    0.000    0.000   0.002 1.au.pool.ntp.o .POOL.          16
> p    -   64    0    0.000    0.000   0.002 2.au.pool.ntp.o .POOL.
>      16 p    -   64    0    0.000    0.000   0.002 +220.233.156.30
> .PPS.            1 u    9   64  377   28.999    0.900   0.166
> +220.158.215.20  202.46.178.18    2 u   36   64  377   78.438
> -0.451   0.086 -13.239.25.115   .GPS.            1 u   25   64  377
> 30.705   -1.130   0.493 +27.124.125.252  27.124.125.250   3 u   31
> 64  377   33.795    0.369   0.220 -103.126.53.123  223.252.32.9     2
> u   21   64  373   31.275   -1.001   0.114[
> 
> Indicates PPS is being used. The 'o' tally code is:
> o  pps.peer

Yes, it shows your ntpd is working when directly reading the PPS.  You
showed that before.  Nothing new.

If that is all you want, then why are we discussing here?

I thought you wanted gpsd to work?  That has nothing to do with gpsd.

> >>>> given it should be using the kernel for PPS edge capture I think
> >>>> it wouldn't have an effect.    
> >>> 
> >>> Well, the logging demonstrated it was NOT using KPPS.  Nor
> >>> TIOMCIWAIT PPS.  So no PPS at all.    
> >> 
> >> You seem to be missing the point that it is trying to do
> >> time_pps_create on a file descriptor set to -2 which is not a valid
> >> FD.  
> > 
> > You are missing the point the -2 is not an FD, it is an error code
> > from an eariler failure.  
> 
> I can't find any earlier failure though..

It was clear in the log you previously posted.

> I put the whole log file at http://www.dons.net.au/~darius/gpsd.log
> if you want to check it out.

No PPS in that log.  Useless for debugging PPS.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        address@hidden  Tel:+1 541 382 8588

            Veritas liberabit vos. -- Quid est veritas?
    "If you can't measure it, you can't improve it." - Lord Kelvin

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