Comment 19 for bug 1516451

This looks similar to https://bugs.launchpad.net/ubuntu/+source/monitoring-plugins/+bug/1827159.

However, installing nagios-plugins in a fresh Xenial LXC container does not appear sufficient to reproduce the bug:

1. There is no /sys/kernel/debug/tracing present on the system. Installing perf-tools-unstable caused the directory to be created.
2. There is not a nagios user on the system. I created this manually, but wonder if there is some third component that should be installed, that would create this?
3. The directory in question is owned by 'nobody':
    root@triage-xenial:~# ls -l /sys/kernel/debug/tracing
    ls: cannot access '/sys/kernel/debug/tracing': Permission denied
    root@triage-xenial:~# ls -l /sys/kernel
    (...)
    drwx------ 36 nobody nogroup 0 Jul 10 23:10 debug
    (...)

It would be quite helpful to have a step-by-step test case that can be invoked in a Xenial lxc container.

Has anyone checked that this same issue affects bionic or newer, or is Xenial-specific?