The reproducer in [1] shows that a process running under Cgroup2 control is OOM'ed if its stdout goes to a file at at tmpfs filesystem. For a regular file system that behaviour is not reproduced here. I do wonder if this is a feature? [1] https://gist.github.com/toralf/0dbb422c0889c594165a8be69e610a86 TIA -- Toralf