Comment # 8 on bug 1215636 from James Fehlig

Have you tried removing the cgroup_enable, systemd.unified_cgroup_hierarchy,
and isolcpus kernel parameters, and overriding DefaultMemoryAccounting=no as I
suggested #4? Let me know if you have any questions about that.

(In reply to Michał Szczepaniak from comment #6)
> Created attachment 869801 [details]
> log from when containers died

From this log it appears virtlxcd has crashed. Do you see any coredumps via
'coredumpctl list virtlxcd'? If so, provide the crashing stack trace with
'coredumpctl info virtlxcd'.

(In reply to Michał Szczepaniak from comment #5)
> also if i run systemctl restart virtlxcd it kills all containers
> immediately. Don't know if it should but just reporting

Hmm, I don't see this behavior. My test containers continue running fine across
virtlxcd restarts. I'll leave the containers running over the weekend and see
if they mysteriously disappear as you've seen.