Funny ntpd?

[Xavier <xavier_(_at_)_rootshell_(_dot_)_be>]

Hi *,

Today, my named crashed several times on a 3.5 server.
I reviewed the logs and saw something very strange coming from ntpd:

Aug  5 23:00:01 boogey syslogd: restart
Jul 18 19:17:20 boogey ntpd[21623]: time reset +31.477366 s
Jul 18 19:17:20 boogey ntpd[21623]: frequency error 28825 PPM exceeds tolerance 500  PPM
Jul 18 19:17:21 boogey named[15514]: /usr/src/usr.sbin/bind/lib/isc/unix/time.c:239: INSIST(t1->nanoseconds < 1000000000 && t2->nanoseconds < 1000000000) failed
Jul 18 19:17:21 boogey named[15514]: exiting (due to assertion failure)
[lines deleted]
Aug  5 23:31:41 boogey ntpd[21623]: time reset +31.060438 s
Aug  5 23:31:41 boogey ntpd[21623]: frequency error 28470 PPM exceeds tolerance 500  PPM

Any idea???

Xavier