Valery Ushakov <uwe%stderr.spb.ru@localhost> writes: > My main g4 mini seems to be struggling with keeping time and has been > for ages. After a reboot it keeps time just fine for days (with ntpd > running). Then at some point it just falls apart and starts losing > time steadily (like, a few minutes a day). This time round I kept an > eye on it, to see when it's gonna start doing that and it took about > 20 days. Nothing interesting in the logs. FWIW, I've observed no such problems on a G4 laptop (12" AL Powerbook, I think the 2004 model). I've been running 10.1 on it for awhile, but 10.0 before that didn't have such issues either. > Anything I can do to debug (and hopefully fix) this? I wonder whether tracking the contents of the driftfile (/var/db/ntp.drift) would yield any insight. Also, are you using any nondefault ntpd options? > Some 32-bit counter overflows? 2^31 milliseconds is a shade under 25 days, so if the problem manifests after 20 days that explanation doesn't seem to quite fit. regards, tom lane