At 1:37 PM -0800 1/10/02, Byan, Stephen wrote:
>  > Time server need not rely on the (internal) RTC for it's sense
>>  of time.  (think GPS receiver, radioclock, etc. Heck, even an RTC
>>  dangling off a serial port via a "one wire" interface would do the
>>  trick!)
>
>It seems Mac68K should arrange to have the NTP time server periodically
>check the wall-clock time RTC hardware. Then we could update the kernel
>notion of time (counted off of unreliable periodic interrupts) from NTP.

The hardware clock is the real reference for old MacOS.  The trouble 
is that it only reports the time to a second (or a little better) so 
it isn't suitable for the usual sort of time reference.

What we've always done in practice is to run ntpdate in a cron job.
-- 
The opinions expressed in this message are mine,
not those of Caltech, JPL, NASA, or the US Government.
Henry.B.Hotz@jpl.nasa.gov, or hbhotz@oxy.edu