Comment 11 for bug 799660

The package cgroup is not installed.
These are the outputs
daniele@daniele-hp:~$ mount | grep cgroup
daniele@daniele-hp:~$ dpkg -l | grep cgroup
daniele@daniele-hp:~$ cat /proc/cgroups
#subsys_name hierarchy num_cgroups enabled
cpuset 0 1 1
ns 0 1 1
cpu 0 1 1
cpuacct 0 1 1
memory 0 1 1
devices 0 1 1
freezer 0 1 1
net_cls 0 1 1
daniele@daniele-hp:~$ cat /proc/self/cgroup
daniele@daniele-hp:~$