[arch-general] libvirt / lxc : no valid cgroup for machine

[Tom Kuther]

Am 16.02.2014 11:56, schrieb arnaud gaboury:
>> └» systemd-cgls
> 
> That's the point : I do not see any machine.slice in the tree :-(
> 

That would be strange. With your machine-dahlia.slice config and the
partition setting in your domain.xml, you should have
machine.slice -> machine-dahlia.slice -> machine-lxc...scope

What does "machinectl -l" spit out?

└» machinectl -l
MACHINE                          CONTAINER SERVICE
lxc-arch-web1                    container libvirt-lxc

└» machinectl status lxc-arch-web1
lxc-arch-web1(xxx)
           Since: Sa 2014-02-15 22:09:04 CET; 14h ago
          Leader: 28398
         Service: libvirt-lxc; class container
            Unit: machine-lxc\x2darch\x2dweb1.scope
                  ├─ [... the cgroup tree again ..]



> gabx at hortensia ➤➤ ~aur/libvirt-git % ls -al /sys/fs/cgroup
> total 0
> drwxr-xr-x 10 root root 240 Feb 15 23:39 ./
> drwxr-xr-x  7 root root   0 Feb 15 23:39 ../
> drwxr-xr-x  3 root root   0 Feb 15 23:39 blkio/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 cpu,cpuacct/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 cpuset/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 devices/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 freezer/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 memory/
> drwxr-xr-x  3 root root   0 Feb 15 23:39 net_cls/
> drwxr-xr-x  4 root root   0 Feb 15 23:39 systemd/
> lrwxrwxrwx  1 root root  11 Feb 15 23:39 cpu -> cpu,cpuacct/
> lrwxrwxrwx  1 root root  11 Feb 15 23:39 cpuacct -> cpu,cpuacct/
> 
> Do you have anything more inside this dir ? I can not find machine.slice
> I think I must have a closer look at my systemd setup. Can you tell em yours ?

As said, it's all in the systemd/ subdir there.

└» ls -l /sys/fs/cgroup/systemd/
insgesamt 0
-rw-r--r--  1 root root 0 15. Feb 18:12 cgroup.clone_children
--w--w--w-  1 root root 0 15. Feb 18:12 cgroup.event_control
-rw-r--r--  1 root root 0 15. Feb 18:12 cgroup.procs
-r--r--r--  1 root root 0 15. Feb 18:12 cgroup.sane_behavior
drwxr-xr-x  3 root root 0 15. Feb 22:09 machine.slice
-rw-r--r--  1 root root 0 15. Feb 18:12 notify_on_release
-rw-r--r--  1 root root 0 15. Feb 18:12 release_agent
drwxr-xr-x 98 root root 0 15. Feb 18:27 system.slice
-rw-r--r--  1 root root 0 15. Feb 18:12 tasks
drwxr-xr-x  3 root root 0 15. Feb 18:12 user.slice


~tom