Timekeeping / NTP Oddity

[SPremeau]

On my most recent FreeNAS system (and my first physical system), I have noticed an behavior that I haven't seen before.

When I am logged via SSH, the time has randomly jumped to a complete different time. (So far, I have not seen it shift when I am no logged in.)

Code:

# ntpdate -u 192.168.8.1
21 Dec 13:31:12 ntpdate[91948]: adjust time server 192.168.8.1 offset -0.005170 sec

# .... time passes ....

# ntpq -pwn
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+192.168.8.1     23.131.160.7     3 u    - 1024  376    0.332   -5.282   0.595
*129.250.35.251  249.224.99.213   2 u    - 1024  376   39.984   -5.908   1.918
+216.6.2.70      58.148.140.87    2 u    - 1024  376   51.818    2.040   7.123

# date
Fri Dec 21 01:57:18 EST 2018
# ntpdate -u 192.168.8.1
21 Dec 13:47:09 ntpdate[95047]: step time server 192.168.8.1 offset 42575.768492 sec

# ntpq -pwn
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
+192.168.8.1     23.131.160.7     3 u 1124 1024  376    0.332   -5.282   0.595
*129.250.35.251  249.224.99.213   2 u 1187 1024  376   39.984   -5.908   1.918
+216.6.2.70      58.148.140.87    2 u 1087 1024  376   51.818    2.040   7.123


# date
Fri Dec 21 13:48:17 EST 2018

So, the time jumps back by a large amount, and the NTPd process does not seem to be aware of it. But ntpdate can correct it.

The BIOS clock is set in UTC time and doesn't appear to drift, though I haven't checked it the last few times this has happened.

I'm stumped, any thoughts at what I should check?

Steve.

 

[dlavigne]

Were you able to figure this out?