I have a newly-installed OMV5 on Odroid HC2. I don't think there is anything out of the ordinary about it. It is running the openmediavault-flashmemory 5.0.7 plugin installed by default. A number of CIFS shares and also some NFS shares. After just less than a week of stable 24x7 operation the oom-killer popped up and killed rpc.statd and a salt-minion. I didn't notice initially, but then 1 day later oom-killer killed rpc.mountd and another salt-minion.
Both issues arose just after 04:30, and I notice that cron seemed to be running debian-sa1 at just that time, and armbian-truncate-logs 5 minutes earlier.
I've posted syslog here, showing the oom-killer processing.
Any ideas what is going on? I see that rpc.statd and salt-minion are both slightly RSS-heavy, but surely this isn't behaviour to be expected?