LinuxQuestions.org - NTPD exits after time reset

Hi,

I use ntpdate before starting ntpd on my board, however, as soon as the time is synchronized with the NTP server, ntpd exits silently with no messages in the logs :

Code:

root@myServer:/# cat /var/log/messages | grep ntp

Feb 10 13:10:16 NOTICE  ntpdate[974]: step time server 192.168.29.211 offset 5.610707 sec

Feb 10 13:10:17 NOTICE  ntpd[985]: ntpd 4.2.4p0@1.1472-o Thu Jan  6 11:12:03 UTC 2011 (1)

Feb 10 13:10:17 INFO    /etc/init.d/ntpd: ntpd startup - OK

Feb 10 13:10:17 INFO    ntpd[986]: precision = 10.895 usec

Feb 10 13:10:17 INFO    ntpd[986]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled

Feb 10 13:10:17 INFO    ntpd[986]: Listening on interface #1 lo, 127.0.0.1#123 Enabled

Feb 10 13:10:17 INFO    ntpd[986]: Listening on interface #2 eth0, 192.168.29.200#123 Enabled

Feb 10 13:10:17 INFO    ntpd[986]: kernel time sync status 0040

Feb 10 13:12:15 INFO    watchdog[1292]: pidfile: /var/run/ntpd.pid

Feb 10 13:13:32 INFO    ntpd[986]: synchronized to 192.168.29.211, stratum 11

Feb 10 13:13:32 NOTICE  ntpd[986]: kernel time sync enabled 0001

Feb 10 13:28:39 NOTICE  ntpd[986]: time reset +0.215637 s

Feb 10 13:28:45 ERROR  watchdog[1292]: pinging process 986 (/var/run/ntpd.pid) gave errno = 3 = 'No such process'

Feb 10 13:28:45 INFO    watchdog: Watchdog restarted ntpd

Feb 10 13:28:45 ERROR  /etc/init.d/ntpd: ntpd shutdown - FAILED

Feb 10 13:28:46 NOTICE  ntpd[1624]: ntpd 4.2.4p0@1.1472-o Thu Jan  6 11:12:03 UTC 2011 (1)

Feb 10 13:28:46 INFO    ntpd[1625]: precision = 10.895 usec

Feb 10 13:28:46 INFO    ntpd[1625]: Listening on interface #0 wildcard, 0.0.0.0#123 Disabled

Feb 10 13:28:46 INFO    ntpd[1625]: Listening on interface #1 lo, 127.0.0.1#123 Enabled

Feb 10 13:28:46 INFO    ntpd[1625]: Listening on interface #2 eth0, 192.168.29.200#123 Enabled

Feb 10 13:28:46 INFO    ntpd[1625]: kernel time sync status 0040

Feb 10 13:28:46 INFO    /etc/init.d/ntpd: ntpd startup - OK

Feb 10 13:32:01 INFO    ntpd[1625]: synchronized to 192.168.29.211, stratum 11

Feb 10 13:32:01 NOTICE  ntpd[1625]: kernel time sync enabled 0001

Every time I observe a "time reset" message in the log, the ntpd process gets killed somehow however the PID file still exits. I don't have any idea why is this happening. Here are the contents of my ntp.conf file :

Code:

driftfile /var/lib/ntp/drift

restrict 0.0.0.0 mask 0.0.0.0 noserve

server 192.168.29.211 prefer

restrict 192.168.29.211 mask 255.255.255.255 nomodify notrap noquery

I use the following command to start ntpd on my board:

Code:

ntpd -u ntp:ntp -p /var/run/ntpd.pid -g

The debug info shows the following:

Code:

ntpq> as



ind assID status  conf reach auth condition  last_event cnt

===========================================================

  1 51965  9014  yes  yes  none    reject  reachable  1



ntpq> rv 51965

assID=51965 status=9014 reach, conf, 1 event, event_reach,

srcadr=192.168.29.211, srcport=123, dstadr=192.168.29.200, dstport=123,

leap=00, stratum=11, precision=-20, rootdelay=0.000,

rootdispersion=11.093, refid=LOCAL(0), reach=007, unreach=0, hmode=3,

pmode=4, hpoll=6, ppoll=6, flash=400 peer_dist, keyid=0, ttl=0,

offset=-0.314, delay=1.119, dispersion=1937.996, jitter=0.356,

reftime=d2e4ad11.612a2f53  Tue, Feb 14 2012 15:21:13.379,

org=d2e4ad1d.5fd4fdf0  Tue, Feb 14 2012 15:21:25.374,

rec=d2e4ad1d.600e34aa  Tue, Feb 14 2012 15:21:25.375,

xmt=d2e4ad1d.5fc24ffd  Tue, Feb 14 2012 15:21:25.374,

filtdelay=    1.12    0.47    0.47    0.00    0.00    0.00    0.00    0.00,

filtoffset=  -0.31    0.03    0.05    0.00    0.00    0.00    0.00    0.00,

filtdisp=      0.02    0.98    1.95 16000.0 16000.0 16000.0 16000.0 16000.0



ntpdc> dmpeers



    remote          local          st  poll  reach  delay    offset    disp

===================================================================================

*192.168.29.211  192.168.29.200    11  64    377  0.00047  0.003895  0.04347



ntpdc> loopinfo

offset:              0.003637 s

frequency:        3.334 ppm

poll adjust:        18

watchdog timer: 27 s



ntpdc> monlist

remote address    port    local address      count    m  ver  code  avgint  lstint

===============================================================================

localhost          32782    127.0.0.1        5          7    2    2      54      0

192.168.29.211      123      192.168.29.200    10        4    4    1c0    64      46



ntpdc> pstats 192.168.29.211

remote host:          192.168.29.211

local interface:      192.168.29.200

time last received:  19s

time until next send: 47s

reachability change:  661s

packets sent:        11

packets received:    11

bad authentication:  0

bogus origin:        0

duplicate:            0

bad dispersion:      0

bad reference time:  0

candidate order:      6

flags:  system_peer, config, bclient, prefer



ntptime

ntp_gettime() returns code 0 (OK)

  time d2e4afb8.f3def000  Tue, Feb 14 2012 15:32:32.952, (.952621),

  maximum error 65225 us, estimated error 1218 us

ntp_adjtime() returns code 0 (OK)

  modes 0x0 (),

  offset 2877.000 us, frequency 3.359 ppm, interval 1 s,

  maximum error 65225 us, estimated error 1218 us,

  status 0x1 (PLL),

  time constant 6, precision 1.000 us, tolerance 512 ppm,



ntpstat

synchronised to NTP server (192.168.29.211) at stratum 12

  time correct to within 18 ms

  polling server every 64 s

Any suggestions?

Thanks
Mantis