When FEATURES=cgroup setup fails, it disables itself silently: https://gitweb.gentoo.org/proj/portage.git/tree/pym/_emerge/AbstractEbuildProcess.py?h=portage-2.3.3#n121 It would be nice to get a warning message, so that users will have a clue that there's a problem to correct.
> It would be nice to get a warning message, so that users will have a clue that there's a problem to correct. It's worth noting that this would trigger a warning by default on systemd systems, since systemd mounts /sys/fs/cgroup read-only. It really wants to be the only process to manage cgroups.
(In reply to Mike Gilbert from comment #1) > It's worth noting that this would trigger a warning by default on systemd > systems, since systemd mounts /sys/fs/cgroup read-only. > > It really wants to be the only process to manage cgroups. That's a good point. It looks like the preferred way to cooperate with systemd is documented here: https://www.freedesktop.org/wiki/Software/systemd/ControlGroupInterface/
