And again, one of the RevPis has "died" somewhere around 2 A.M. on 29.11.2022. Two log files attached. Any suggestions?

Is there a simple way to limit resources (CPU/RAM) for selected process? We have an idea, just for tests, to try to limit our 3rd party software, maybe that would help to solve our problems.

I have available now three RevPi’s just for testing purposes. Yesterday I prepared from scratch two of them:
- Clean buster image 2022-05-25, TeamViewer uninstalled, VNC service turnd on, Codesys control V4.5 and Codesys Edge V4.5 installed
- Clean buster image 2022-07-28, TeamViewer uninstalled ...

Nothing really, just HTOP is working all the time.

Oct 31 16:49:14 RevPi10030476771 kernel: [457094.027985] Hardware name: BCM2835
Oct 31 16:49:14 RevPi10030476771 kernel: [457094.027989] Backtrace:
Oct 31 16:49:14 RevPi10030476771 kernel: [457094.027995] [<80a56350>] (dump_backtrace) from [<80a566dc>] (show_stack+0x20/0x24)
Oct 31 16:49:14 ...

Unfortunately, the RevPi still freezes even without mentioned "connect-gateway" service and without TeamViewer (both uninstalled). I will try to give more details later, because I have 3 x RevPi running right now for test with different config. Is there anything that I can check myself at this point ...

Hi,
Yes, of course. It can take minutes or days, but I will inform asap if something will change.

Daemon LOG

Sep 7 05:57:52 RevPi10030476771 dhcpcd[1515]: pileft: bpf_send: No buffer space available
Sep 7 05:58:05 RevPi10030476771 systemd[1]: connect-gateway-supervisor.service: Service RestartSec=1min expired, scheduling restart.
Sep 7 05:58:05 RevPi10030476771 systemd[1]: connect-gateway ...

Kern LOG

Sep 7 00:00:38 RevPi10030476771 kernel: [48964.732590] piControl: pileft: received data packet ack 0x6e, expected 0x6f
Sep 7 00:04:48 RevPi10030476771 kernel: [49214.122716] piControl: pileft: received data packet ack 0xcc, expected 0xcd
Sep 7 00:14:52 RevPi10030476771 kernel: [49818 ...

Good morning!
I'm experiencing sudden hangs on at least one of our RevPi's. First thought was the temperature, but on the core it's not going over 60'C. I made a test with other unit and heat it up over 82'C and everything was fine.
Second thought - RAM. I'm pretty sure that it could cause problems ...