On Tue, 27 Mar 2007, peter@tech-no-logical.net wrote:
quoted text > hi,
>
> i'm trying to keep my local clock synched through ntpd. i used to do
> that with ntpdate, but since ntpd is available in a standard install
> i thought i'd try that. i start ntpd at boot, with added -s to synch
> the clock right away. however, after that it starts moving the clock
> backwards. restarting ntpd just makes it repeat the process :
>
> [old ntpd, started at boot]
> Mar 27 08:46:58 ntpd[20919]: adjusting local clock by 9642.320276s
> Mar 27 08:49:06 ntpd[20919]: adjusting local clock by 2143.405987s
> Mar 27 08:50:07 ntpd[20919]: adjusting local clock by 2142.248606s
> Mar 27 08:51:42 ntpd[20919]: adjusting local clock by 9644.027785s
> Mar 27 08:54:45 ntpd[1871]: ntp_dispatch_imsg in ntp engine: pipe closed
> Mar 27 08:54:45 ntpd[1871]: ntp engine exiting
> [restart]
> Mar 27 08:55:02 ntpd[2426]: ntp engine ready
> Mar 27 11:35:52 ntpd[16439]: set local clock to Tue Mar 27 11:35:52 CEST 2007 (offset 9649.641093s)
> Mar 27 11:36:09 ntpd[2426]: peer 194.146.227.112 now valid
> [some more peers snipped]
> Mar 27 11:37:33 ntpd[6515]: adjusting local clock by 1.288053s
> Mar 27 11:40:10 ntpd[6515]: adjusting local clock by 6.464148s
> Mar 27 11:40:10 ntpd[2426]: clock is now synced
> Mar 27 11:44:23 ntpd[6515]: adjusting local clock by 10.656797s
> Mar 27 11:46:36 ntpd[6515]: adjusting local clock by 13.004900s
> Mar 27 11:46:36 ntpd[2426]: clock is now unsynced
> Mar 27 11:49:17 ntpd[6515]: adjusting local clock by 11.683026s
> Mar 27 11:53:39 ntpd[6515]: adjusting local clock by 15.193740s
>
> (if left alone, this adjustment will increase perpetually).
>
> timezone is set correctly :
> $ ls -la /etc/localtime
> lrwxr-xr-x 1 root wheel 36 Dec 2 00:38 /etc/localtime -> /usr/share/zoneinfo/Europe/Amsterdam
>
> $ date
> Tue Mar 27 12:25:30 CEST 2007
>
> any ideas ? it _has_ managed to keep the clock synched once,
> but after a reboot it went completely bonkers. i tried removing
> the drift-file and restarting it as well, to no avail. i'm
> running 4.0-release, and the provided ntpd.
>
> --
> CUL8R, Peter.
It looks like your clock drifts more that ntpd can compensate. Please
share some details on your setup, like the dmesg. Also, if you remove
the drift file, you must reboot, since otherwise the existing
frequency compensations stays in effect.
-Otto
