Hi fellow Archers, I seem to be having trouble with ntpd.service since the 4.2.7 upgrade. I can't get ntpd to run as the ntp user. I'm using the /etc/ntp.conf provided by the package ntp. When starting ntpd.service (systemctl start ntp.service), ntpd spikes the CPU for a moment, and then spikes the CPU about every 5 minutes afterward. What's more is ntpq -p returns "No association ID's returned". I ran "ntpd -g -u ntp:ntp -p /run/ntpd.pid -d" (from the Systemd unit file). The results: http://sprunge.us/QbYL The part I found of interest were the lines that read: intres: EAI_SYSTEM errno 11 (Resource temporarily unavailable) means try again, right? select() returned -1: Interrupted system call select() returned -1: Interrupted system call I took out the "-u ntp:ntp" parameter (so ntp runs as root), and these errors disappeared. Also, ntpq -p returns the NTP servers I'm synchronized with. So, I'm pretty sure the issue is permissions related, but I have no idea what it's running into. Any insight? I currently modified /usr/lib/systemd/system/ntpd.service so that ntpd runs as root instead of the user ntp. (Is there a cleaner way to tweak a systemd unit file?) Everything seems to run fine for now. On a side note, the Wiki says that timedatectl (part of systemd) can use ntp for synchronization [1]. However, the man page for timedatectl shows an example where chrony (another NTP server) is running. Does ntpd.service need to be running for timedatectl to set time via NTP? Is there a way to force timedatectl to query NTP (for testing)? --Kyle [1] https://wiki.archlinux.org/index.php/Ntp#systemd_services