Time set timeout on boot: "clock tick timed out"

Unraid: 6.12.10 which is running in a Proxmox VM, USB pass-through.

Every time I boot I need wait for this command to timeout and error out (seems like 10-20s):

hwclock: select() to /dev/rtc0 to wait for clock tick timed out

Searching for this error produced results on Slackware going back to the early 2000s, but nothing on UnRaid or UnRaid forums.

Anyone know if this is a setting on the VM config side? Blocking access to the clock? Or is this a setting I can change in UnRaid?

In a terminal: this outputs the correct UTC datetime:

hwclock --directisa

This seems to work without error:

hwclock --directisa --systohc

Edit: This is also odd. rtc0 had 0 interrupts?

cat /proc/interrupts
           CPU0       CPU1       CPU2       CPU3       CPU4       CPU5       CPU6       CPU7       CPU8       CPU9       CPU10      CPU11      
  0:        114          0          0          0          0          0          0          0          0          0          0          0   IO-APIC   2-edge      timer
  1:          0          0          9          0          0          0          0          0          0          0          0          0   IO-APIC   1-edge      i8042
  6:          0          0          0          2          0          0          0          0          0          0          0          0   IO-APIC   6-edge      floppy
  8:          0          0          0          0          0          0          0          0          0          0          0          0   IO-APIC   8-edge      rtc0
  9:          0          0          0          0          0          0          0          0          0          0          0          0   IO-APIC   9-fasteoi   acpi

Edited July 10, 20241 yr by BigJimsBoat