Hello, On Sun, Jun 26, 2016 at 06:42:49PM -0700, James Bottomley wrote: > This is the right answer. I've spent ages trying to figure out how to > do it on my openSUSE laptop because I actually want to demo the v2 API. > However, it seems to be impossible. You can't prevent systemd from > mounting the v1 hierarchies and that means you can't get v2 ones > running. The only real way to do it on a modern laptop is to use a > virtual machine (sadly you can't use a container because systemd has > already contaminated the host kernel). I tend to use debian because > they have an installation procedure for dumping systemd: * That's what cgroup_no_v1= option is for. * For a while systemd had a bug where it created sub cgroups even for controllers which don't have any resource limits configured. This has been fixed for a while now and you should be able to umount hierarchies with unused hierarchies now (it's ugly but does work). Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html