[lxc-users] LXC not responsive after update

[Fajar A. Nugraha]

On Thu, Jan 21, 2016 at 5:49 AM, Fajar A. Nugraha <list at fajar.net> wrote:

> On Thu, Jan 21, 2016 at 5:23 AM, Viktor Trojanovic <viktor at troja.ch>
> wrote:
>
>> I just did a system upgrade on my Arch System which included updating the
>> kernel, systemd and lxc to the newest versions. After having done so, I
>> cannot interact with my Linux container any longer. The system within the
>> container still seems to work fine and can be contacted from outside (Samba
>> server) but if I try to use one of the lxc commands to query or otherwise
>> interact with the container (e.g. lxc-ls -f, lxc-stop, lxc-console,
>> lxc-attach), the command hangs until I cancel it with CTRL+C.
>>
>> I get the following message when cancelling lxc-ls -f (as root):
>>
>> ^CTraceback (most recent call list):
>>   File "/usr/bin/lxc-ls", line 432, in <module>
>>     containers = get_containers(root=True)
>>   File "user/bin/lxc-ls", line 261, in get_containers
>>     if container.controllable:
>> KeyboardInterrupt
>>
>> Regular lxc-ls works normal, by the way.
>>
>> I can probably just reboot the server but I still wanted to ask around if
>> anyone has an idea why this is happening and what I could do except
>> rebooting to regain control of LXC? I tried already systemctl restart lxc
>> but that doesn't help.
>>
>>
>
> Do you have lxcfs installed? If yes, this should be a know issue. When you
> restart lxcfs, all existing running containers that use it will be unable
> to access lxcfs-provided resources. AFAIK restarting lxc service does
> restart running containers.
>
>
That should be: AFAIK restarting lxc service does *NOT *restart running
containers.


Try killing one of those containers (lxc-stop -k -n ...), start it, and
> then test again. If it works, do the same for other containers.
>
> --
> Fajar
>
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