Woke up this morning to reports of out of memory errors by check common problems.
Haven't installed anything new since BOINC (linuxserver/boinc) a couple weeks back. Diagnostic logs attached.
I just stopped BOINC, and memory usage is back down from 95% to 15%. (System has 32GB RAM) I think I found the culprit... Possibly just a configuration issue - I'll leave this stopped and see if I can reconfigure to reduce memory usage and let it go again. FWIW, my last system r