Bug#918764: udev: "udevadm control --reload-rules" kills all processes except init

[Gedalya]

> This currently looks like this now (after I have uninstalled
> cgroupfs-mount):
>
> → findmnt -R /sys/fs/cgroup
> TARGET                   SOURCE  FSTYPE  OPTIONS
> /sys/fs/cgroup           tmpfs   tmpfs   rw,nosuid,nodev,noexec,mode=755
> ├─/sys/fs/cgroup/unified cgroup2 cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate
> └─/sys/fs/cgroup/elogind cgroup  cgroup  rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/lib/elogind
>
> But I have to assume that these mount points where at least present
> before I uninstalled cgroupfs-mount, too.
>
> 		Regards, Axel

I can say I've always had this issue with only cgroup2 mounted and no cgroup (what you might call "v1")