Troubleshoot spontaneous reboots on 4B

#1

Hi

I’m running homeassistant on rockpi 4B(4/32) with

  • Ubuntu 20.04.6 LTS
  • kernel rockpi4b 4.4.154-116-rockchip-g86a614bc15b3
  • authentic raspberrypi PSU
  • a massive solid state heatsink, and the temperature is 45C within a couple of degrees according to /sys/class/thermal/thermal_zone0/temp
  • headless.

my reboot history looks like this:

rock@rockpi4b:~$ last reboot
reboot   system boot  4.4.154-116-rock Tue Jun 20 10:18   still running
reboot   system boot  4.4.154-116-rock Tue Jun 20 10:05   still running
reboot   system boot  4.4.154-116-rock Sun Jun 18 00:22   still running
reboot   system boot  4.4.154-116-rock Sat Jun 17 10:21   still running
reboot   system boot  4.4.154-116-rock Fri Jun 16 19:21   still running
reboot   system boot  4.4.154-116-rock Fri Jun 16 16:32   still running
reboot   system boot  4.4.154-116-rock Fri Jun 16 12:51   still running
reboot   system boot  4.4.154-116-rock Wed Jun 14 23:34   still running
reboot   system boot  4.4.154-116-rock Wed Jun 14 13:28 - 23:34  (10:05)
reboot   system boot  4.4.154-116-rock Sun Jun 11 04:27 - 23:34 (3+19:06)
reboot   system boot  4.4.154-116-rock Sat Jun 10 12:34 - 23:34 (4+10:59)
reboot   system boot  4.4.154-116-rock Sat Jun 10 11:22 - 23:34 (4+12:12)
reboot   system boot  4.4.154-116-rock Tue Jun  6 00:11 - 23:34 (8+23:23)

These are not graceful shutdowns, they are full on resets that sometimes lead to corruption of fs and containers. Now the latest update of HA causes the reboot reliably, that is, it never goes through. I’ve been following dmesg during the reboot but there is no info there. I would guess that the reboots are more likely to happen when the system is under load.
How can i investigate this behavior further?

#2

Exactly the same happens here. We have 45W PD power source. Debian with kernel 5.10. System is completely idle, nothing runs in the background, CPU temp is 36°C. The board randomly reboots. Nothing logged in the system log. It seems that these Rock 4B boards are totally buggy.

#3

I gave up on rock PI. I switched to one of those older mini PCs with an intel i5, it’s way faster, more reliable(so far), cheaper and probably 10x more power hungry. I might restore the rock to be the backup to home assistant but it’s not high on my priority list.