[pkg-ntp-maintainers] Bug#793745: Bug#793745: [PATCH] I'm seeing it too.

[sacrificial-spam-address at horizon.com]

> Maybe the comment is a little misleading.

How about

# Preventing ntpd from swapping (with mlockall()) reduces time delays,
# but resource limits (ulimit -l) cause out-of-meory errors that lead to
# ntpd quitting with strange (or no) error messages.  Particular trouble
# spots are the -u option (depending on /etc/nsswitch.conf) and the pool
# command (which does DNS lookups at run time).  It's more reliable with
# this disabled.
#
# Note that the busier your NTP server, the less swapping is a concern
# in the first place.