[ntp:questions] Time reset

venu gopal neo.venu at gmail.com
Mon Mar 3 09:50:01 UTC 2008


Hi,

We have a time-server with about seven clients over LAN.
Only in one clients it is observed that the time is reset almost daily.
We have replaced the client with a new system. And if not daily but
the time reset has occurred once. Below is the ntp log :

2 Mar 02:33:52 ntpd[1566]: offset -0.000033 sec freq 0.245 ppm error
0.000020 poll 4
2 Mar 03:33:52 ntpd[1566]: offset 0.000010 sec freq 0.267 ppm error
0.000017poll 4
2 Mar 04:33:52 ntpd[1566]: offset -0.000020 sec freq 0.232 ppm error
0.057544 poll 4
2 Mar 04:37:56 ntpd[1566]: time reset 2.220040 s
2 Mar 04:37:56 ntpd[1566]: synchronisation lost
2 Mar 04:37:56 ntpd[1566]: system event 'event_clock_reset' (0x05) status
'leap_none, sync_unspec, 15 events, event_peer/strat_c        hg' (0xf4)
2 Mar 04:37:56 ntpd[1566]: system event 'event_peer/strat_chg' (0x04) status
'leap_none, sync_unspec, 15 events, event_clock_res        et' (0xf5)
2 Mar 04:37:57 ntpd[1566]: peer 10.10.10.10 event 'event_reach' (0x84)
status 'unreach, conf, 5 events, event_reach' (0x8054)
2 Mar 04:38:46 ntpd[1566]: peer 10.10.10.11 event 'event_reach' (0x84)
status 'unreach, conf, 5 events, event_reach' (0x8054)
2 Mar 04:38:50 ntpd[1566]: peer 10.10.10.12 event 'event_reach' (0x84)
status 'unreach, conf, 7 events, event_reach' (0x8074)
2 Mar 05:33:54 ntpd[1566]: offset -0.000327 sec freq 3.477 ppm error
0.000015 poll 4
2 Mar 06:33:54 ntpd[1566]: offset -0.000009 sec freq 0.246 ppm error
0.000019 poll 4
2 Mar 07:33:54 ntpd[1566]: offset 0.000005 sec freq 0.246 ppm error
0.000014poll 4

In the third line the ppm error jumped from 0.000017 to 0.057544.
Is it something to do with improper clock interrupts due to its misbehavior
?

Venu



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