Stuck on Starting container... since upgrade to precise :(

[Serge E. Hallyn]

Quoting Luis Arias (kaaloo at gmail.com):
> I found an error creating the container in the unit's container.log.  I'll
> go ahead and file a bug.
> 
> luis at athena:/tmp/juju-local/luis-local/units/mysql-0$ cat container.log
>       lxc-start 1335813579.706 DEBUG    lxc_conf - cgroup 'devices.deny'
> set to 'a'

This worked, but

>       lxc-start 1335813579.706 DEBUG    lxc_cgroup - lxc_cgroup_path_get:
> called for subsys devices name luis-local-mysql-0
> 
>       lxc-start 1335813579.706 DEBUG    lxc_cgroup - get_init_cgroup: found
> init cgroup for subsys devices at /
> 
> 
>       lxc-start 1335813579.707 DEBUG    lxc_cgroup - using cgroup mounted
> at '/sys/fs/cgroup/devices//lxc'
>       lxc-start 1335813579.707 DEBUG    lxc_cgroup - lxc_cgroup_path_get:
> returning /sys/fs/cgroup/devices//lxc/luis-local-mysql-0 for subsystem
> devices.allow
>       lxc-start 1335813579.707 ERROR    lxc_cgroup - write
> /sys/fs/cgroup/devices//lxc/luis-local-mysql-0/devices.allow : Invalid
> argument

this failed.  That suggests to me that the container configuration file
has a bad lxc.cgroup.devices.allow entry.

-serge