[pkg-lxc-devel] Bug#843450: Bug#843450: Bug#843450: lxc: Corrupt /proc/self/cgroup / Failed to get list of controllers

[Evgeni Golov]

On Mon, Nov 07, 2016 at 08:17:09AM +0100, Evgeni Golov wrote:
> control: reassign -1 libpam-cgfs
> 
> Hi Francois,
> 
> On Sun, Nov 06, 2016 at 10:00:35AM -0800, Francois Marier wrote:
> > Since I upgraded to a 4.8.0 kernel, I get these messages in my logs:
> > 
> >   Nov  5 18:02:08 hostname PAM-CGFS[6968]: Corrupt /proc/self/cgroup
> >   Nov  5 18:05:01 hostname PAM-CGFS[8574]: Corrupt /proc/self/cgroup
> >   Nov  5 18:05:01 hostname PAM-CGFS[8574]: Failed to get list of controllers
> >   Nov  5 18:05:01 hostname PAM-CGFS[8574]: Corrupt /proc/self/cgroup
> >   Nov  5 18:10:01 hostname PAM-CGFS[8612]: Corrupt /proc/self/cgroup
> >   Nov  5 18:10:01 hostname PAM-CGFS[8612]: Failed to get list of controllers
> 
> Can you please post the outputs of
>  cat /proc/1/mountinfo
>  cat /proc/self/cgroup
> 
> I suspect that with kernel 4.8 systemd mounts th cgroup2 fs instead of
> old cgroup and this breaks libpam-cgfs :(
> 
> See also https://github.com/lxc/lxc/issues/1280

Can you please try booting with
 systemd.legacy_systemd_cgroup_controller
and see if that fixes the issue for you for now?