[lxc-users] lxc-start: cgroups/cgfs.c: do_setup_cgroup_limits: 2037 No such file or directory - Error setting devices.deny to a for jessie1

[Harald Dunkel]

Hi Serge,

On 05/12/17 15:59, Serge E. Hallyn wrote:
> Quoting Harald Dunkel (harald.dunkel at aixigo.de):
>> Hi folks,
>>
>> my LXCs don't start anymore:
> 
> Odd, do_setup_cgroup_limits() seems to be called twice.
> 
> First time is sucessful,
> 
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.deny' set to 'a'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c *:* m'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'b *:* m'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 1:3 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 1:5 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 1:7 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 5:0 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 5:1 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 5:2 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 1:8 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 1:9 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 136:* rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 10:229 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 254:0 rm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 10:200 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 10:228 rwm'
>>       lxc-start 20170511140840.901 DEBUG    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2042 - cgroup 'devices.allow' set to 'c 10:232 rwm'
>>       lxc-start 20170511140840.901 INFO     lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2046 - cgroup has been setup
>>       lxc-start 20170511140840.930 DEBUG    lxc_conf - conf.c:lxc_assign_network:3185 - move 'veth59JIW0'/'(null)' to '4419': .
>>       lxc-start 20170511140840.966 DEBUG    lxc_conf - conf.c:lxc_assign_network:3185 - move 'vethTIN4QF'/'(null)' to '4419': .
> ...
> 
>>       lxc-start 20170511140841.710 ERROR    lxc_cgfs - cgroups/cgfs.c:do_setup_cgroup_limits:2037 - No such file or directory - Error setting devices.deny to a for jessie1
>>       lxc-start 20170511140841.710 ERROR    lxc_start - start.c:lxc_spawn:1236 - Failed to setup the devices cgroup for container "jessie1".
> 
> Second time fails.
> 
> Can you tell us the old (working) and new (nonworking) lxc versions?

The host is running sysvinit. It failed with lxc 2.0.7.

I would guess the problem was related to mounting cgroup. Both /cgroup
and /sys/fs/cgroup were mounted via /etc/fstab, and libvirt0 and
cgroupfs-mount were installed, too. I have removed all except cgroupfs-\
mount and installed lxc 2.0.7 from scratch. Problem gone, as it seems.

Thanx anyway for looking into this.


Regards
Harri