[Soekris] Time drift on a net4801

[Robbie Stone]

Hi,

I'm running OpenBSD 3.5 on a net4801 with NTP v4.1.1c-rc1 at 1.836 and I keep
seeing time slew errors reported in my syslog. 

Jul 23 14:25:27 charon ntpd[19849]: time slew -0.344605 s
Jul 23 23:31:34 charon ntpd[19849]: time slew 0.183619 s
Jul 24 03:13:35 charon ntpd[19849]: time slew -0.238044 s
Jul 24 05:13:03 charon ntpd[19849]: time slew 0.235565 s
Jul 24 06:12:51 charon ntpd[19849]: time slew -0.212560 s
Jul 24 07:55:23 charon ntpd[19849]: time slew 0.197873 s
Jul 24 09:37:46 charon ntpd[19849]: time slew -0.185680 s
Jul 24 11:37:16 charon ntpd[19849]: time slew 0.171464 s
Jul 24 13:19:42 charon ntpd[19849]: time slew -0.201864 s
Jul 24 13:36:47 charon ntpd[19849]: time slew -0.182646 s
Jul 24 13:53:49 charon ntpd[19849]: time slew 0.272825 s
Jul 24 14:53:41 charon ntpd[19849]: time slew -0.311513 s
Jul 24 15:10:43 charon ntpd[19849]: time slew -0.181630 s

It seems like the time is drifting quite a bit. Has anyone else run into this? 
Should I be tuning a kernel option or changing the timer values to compensate
for the constant clock drift? NTP is mitigating the problem, of course, but
without being synced it would drift way the heck off :-\ Not exactly what I'd
like..

So, any ideas?


Thanks,

Robbie Stone