As per the discussion on -current@ between Sept 6 - 9, disable ntpd mlock() of pages in memory by default. As ntpd can account for possible (though unlikely) jitter, the impact to ntpd is minimal.
Additionally, disabling ntpd's use of mlock() is default on Linux.
See the discussion on freebsd-current@.
A corresponding change will be made to ports/net/ntp and ports/net/ntp-devel.
Users may enable memory locking through the rlimit memlock statement in ntp.conf.