NetBSD-current Time issues on RPI3

[Sad Clouds <cryintothebluesky%gmail.com@localhost>]

rp3$ dmesg | grep Pi
[     1.000000] simplebus0 at armfdt0: Raspberry Pi 3 Model B Plus Rev
1.3

I was running pkgsrc builds and after a while

Running "sleep 1" sleeps forever

Also, Running "date" every second shows time is stuck and jumps up/down
by 1 second:

rp3$ date
Sat May  4 09:36:13 BST 2019
rp3$ date
Sat May  4 09:36:14 BST 2019
rp3$ date
Sat May  4 09:36:14 BST 2019
rp3$ date
Sat May  4 09:36:13 BST 2019
rp3$ date
Sat May  4 09:36:14 BST 2019

Is this related to ntpd or something else?