[LinuxPPS] gps influence
Udo van den Heuvel
udovdh at xs4all.nl
Wed Dec 13 14:43:43 CET 2006
Udo van den Heuvel wrote:
> So I download the patch to 2.6.19.1. and compiled, booted.
[...]
> Then I unplugged the gps.
>
> [root at epia ~]# ntpq -pn
> remote refid st t when poll reach delay offset
> jitter
> ==============================================================================
> 127.127.1.0 .LOCL. 10 l 45 64 377 0.000 0.000
> 0.001
> 127.127.20.0 .GPS. 8 l 81m 16 0 0.000 0.000
> 0.001
> +194.109.22.18 193.67.79.202 2 u 3 64 377 9.531 -63.429
> 15.054
> *193.67.79.202 .GPS. 1 u 33 64 377 15.013 -61.513
> 9.578
> +193.79.237.14 .GPS. 1 u 52 64 377 24.107 -68.326
> 5.637
> 82.92.197.115 .STEP. 16 u - 1024 0 0.000 0.000
> 0.000
> +82.93.103.174 .GPS. 1 u 30 64 377 31.068 -69.758
> 2.724
> -83.83.82.105 193.79.237.14 2 u 2 64 377 16.881 -61.174
> 13.112
>
> And stuff got better again.
> So what does a stratum 8 gps do!?
> Any ideas?
> /proc stuff still don't work.
Now I just plugged in the power to the GPS again.
For 2.6.19.1 I enabled debugging.
In dmesg I see:
pps_core: New message from PID 2423 (flags 0)
pps_core: PPS_FETCH: source 0
pps_core: start sending replay to ID 2423...
pps_core: ... replay sent (180)
pps_core: New message from PID 2423 (flags 0)
pps_core: PPS_FETCH: source 0
pps_core: start sending replay to ID 2423...
pps_core: ... replay sent (180)
pps_core: New message from PID 2423 (flags 0)
pps_core: PPS_FETCH: source 0
pps_core: start sending replay to ID 2423...
pps_core: ... replay sent (180)
pps_core: New message from PID 2423 (flags 0)
pps_core: PPS_FETCH: source 0
pps_core: start sending replay to ID 2423...
pps_core: ... replay sent (180)
pps_core: New message from PID 2423 (flags 0)
pps_core: PPS_FETCH: source 0
pps_core: start sending replay to ID 2423...
pps_core: ... replay sent (180)
I assume this is OK?
Udo
PS: Rodolfo, replay should be corrected into reply.
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