6.12.10 Keeps Crashing every 4-8 hours

Downgrade back to the previous release you were using and retest, it could for example be a new hardware issue.

I upgraded to 6.12.13, as I had not noticed that it had been released and marked stable, to see if things would improve. About 6 hours later, I lost the host with the same issue, and no faults I can find in Syslog. I realize it might be a new hardware issue, but I am looking for suggestions or clues on where I should start. I am uploading new dialogs from the recent reboot.

nas-diagnostics-20241011-0808.zip

The syslog in the diagnostics is the RAM copy and only shows what happened since the reboot.   It could be worth enabling the syslog server to get a log that survives a reboot so we can see what happened prior to the reboot. The mirror to flash option is the easiest to set up, but if you are worried about excessive wear on the flash drive you can put your server’s address into the Remote Server field.

Yeah, the mirror is already enabled and not capturing any panics / traces that point me anywhere. Today I booted into safe mode (no plugins), and only ran a limited set of dockers (to keep my network services alive), and then on the console ran tail of syslog running nonstop. It died again; there was nothing in the syslog of concern on the screen. I could ctrl-c to a console, but no commands would run. However, I saw my server prompt. I could not open any logs or top. Hard rebooted and ran a memtest for the evening. It's 35% through, and no errors thus far. The second diag above, was captured with the mirror already enabled.

Five MemTests passes passed with no errors. I have gone ahead and booted the server in safe mode without plugins, started the array, and started a parity check with dockers off. I will see if that causes a crash.

The parity check finished fine without errors. I moved the boot disk to a new USB, which booted normally. Started a limited set of dockers. I will report the next crash when that occurs.