Peter Jeremy <peterjer...@acm.org> writes: > At least some versions of Linux also save a RTC drift approximation > and "last set" timestamp whenever the RTC is updated. This allows the > kernel to better set the system clock from the RTC at boot (ie, our > inittodr()). The downside is that this needs to store 8-16 bytes of > state somewhere non-volatile. Linux does this using an external > program and a file - but finding a location for a regularly updated > file that is read very early in the rc.d sequence might be problematic.
We already do something similar for entropy. > that it _is_ updated. This suggests that an alternative approach > would be for adjtime() / ntp_adjtime() to directly call resettodr() if > it's more than P minutes since resettodr() was last called. ...if we want something like Linux's eleven-minute-mode. DES -- Dag-Erling Smørgrav - d...@des.no _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
