DFS patches potentially problematic
Initial thread here: https://forum.armbian.com/topic/16038-random-system-reboots/
a2495963 adds frequency scaling patches that I have tested to be problematic with an armada 388 platform. The thread is long but to summarize,
Running btrfs scrub on a 4TB raid (3TB after RAID5) results in a system freeze (which the watchdog fixes) after around an hour.
Removing the DFS patches fixes the issue.
I remember having this issue with Samba where while viewing a video, the Omnia would reboot. I attributed the problem to Samba's sendfile option at the time, but it turns out not to be the case.