-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 3 Feb 2011 at 16:50, Alby wrote:
> > > I've spent the better part of the day trying to get my Stratum 1 > server > running using my GPS 18 LVC. For the most part, everything on the > hardware side seems to be working just fine. My problem seems to be > with the configurations of my server running Debian. > > Does anybody have a clue what I might have missed? > > > NTP is running, but nothing appears to be updating: > ---- > godzilla:/etc# ntpq -pn > remote refid st t when poll reach delay offset > > jitter > ====================================================================== > ======== > 127.127.20.1 .GPS. 0 l - 64 0 0.000 0.000 > > 0.001 > 127.127.22.0 .PPS. 0 l - 16 0 0.000 0.000 > > 0.001 > godzilla:/etc# ntpq -p > remote refid st t when poll reach delay offset > > jitter > ====================================================================== > ======== > GPS_NMEA(1) .GPS. 0 l - 64 0 0.000 0.000 > > 0.001 > PPS(0) .PPS. 0 l - 16 0 0.000 0.000 > > 0.001 > godzilla:/etc# > > > > > > I'm getting a signal on /dev/pps0, but its coming in duplicate > --- > godzilla:/etc# > godzilla:/etc# /usr/src/pps-tools/ppstest /dev/pps0 > trying PPS source "/dev/pps0" > found PPS source "/dev/pps0" > ok, found 1 source(s), now start fetching data... > source 0 - assert 1296769631.017066245, sequence: 1044 - clear > 1296769630.117041643, sequence: 1043 > source 0 - assert 1296769631.017066245, sequence: 1044 - clear > 1296769631.117070403, sequence: 1044 > source 0 - assert 1296769632.017097642, sequence: 1045 - clear > 1296769631.117070403, sequence: 1044 > source 0 - assert 1296769632.017097642, sequence: 1045 - clear > 1296769632.117100679, sequence: 1045 > source 0 - assert 1296769633.017124279, sequence: 1046 - clear > 1296769632.117100679, sequence: 1045 > source 0 - assert 1296769633.017124279, sequence: 1046 - clear > 1296769633.117129435, sequence: 1046 > > > > > Here is my ntp.conf file: > --- > server 127.127.20.1 mode 8 prefer # NMEA GPZDA format > fudge 127.127.20.1 time2 0.090 # NMEA offset > server 127.127.22.0 minpoll 4 maxpoll 4 # PPS ATOM driver > fudge 127.127.22.0 flag3 1 flag2 1 > driftfile /var/lib/ntp/ntp.drift I don't have settings handy from when I used my 18x-LVC with Ubuntu but I don't think they were any different other than the symlink device names being different. On NetBSD with ntpd 4.2.4p6-o I had: ************************* tos mindist 0.4 # /dev/gps1 -> /dev/tty00 server 127.127.20.0 mode 1 prefer minpoll 6 maxpoll 8 fudge 127.127.20.0 time1 0.651 refid GPSb # /dev/pps1 -> /dev/tty00 server 127.127.22.0 minpoll 4 maxpoll 6 fudge 127.127.22.0 refid PPSb flag3 1 ************************* along with another three servers GPS_NMEA offsets were +/-50ms PPS offsets were a few microseconds with a lot of polls being 0.000ms David > > > > > And this is all I see when I query the logs after ntp starts > ---- > Feb 3 16:49:34 empireva ntpd[3544]: ntpd [email protected] Sun Nov 22 > 16:14:34 UTC 2009 (1) Feb 3 16:49:34 empireva ntpd[3545]: precision = > 1.000 usec Feb 3 16:49:34 empireva ntpd[3545]: Listening on interface > #0 wildcard, 0.0.0.0#123 Disabled Feb 3 16:49:34 empireva ntpd[3545]: > Listening on interface #1 wildcard, ::#123 Disabled Feb 3 16:49:34 > empireva ntpd[3545]: Listening on interface #2 lo, ::1#123 Enabled Feb > 3 16:49:34 empireva ntpd[3545]: Listening on interface #3 eth0, > fe80::d227:88ff:fe17:46f9#123 Enabled Feb 3 16:49:34 empireva > ntpd[3545]: Listening on interface #4 lo, 127.0.0.1#123 Enabled Feb 3 > 16:49:34 empireva ntpd[3545]: Listening on interface #5 eth0, > 192.168.3.25#123 Enabled Feb 3 16:49:34 empireva ntpd[3545]: kernel > time sync status 0040 Feb 3 16:49:34 empireva ntpd[3545]: frequency > initialized 3.448 PPM from /var/lib/ntp/ntp.drift > > > > _______________________________________________ > pool mailing list > [email protected] > http://lists.ntp.org/listinfo/pool - -- David Lord <[email protected]> <ftp://ftp.lordynet.org/pub/pgpkeys/lg_david.pkr> <http://www.lordynet.org/pub/pgpkeys/lg_david.pkr> -----BEGIN PGP SIGNATURE----- Version: PGP 7.0.4 -- QDPGP 2.65 Comment: http://community.wow.net/grt/qdpgp.html iQA/AwUBTUtR362RmIodDo7KEQJ4fwCgho17vE0G3C1yP2xWqhIeOq1r3PcAn3uv 9nIkKqtNBbCNfPDCaJIYzeT5 =KSEv -----END PGP SIGNATURE----- _______________________________________________ pool mailing list [email protected] http://lists.ntp.org/listinfo/pool
