Richard Weinberger <[email protected]> writes:

> Am 28.05.2015 um 16:08 schrieb Serge Hallyn:
>> Quoting Andy Lutomirski ([email protected]):
>>> On Fri, May 22, 2015 at 10:39 AM, Eric W. Biederman
>>> <[email protected]> wrote:
>>>> I had hoped to get some Tested-By's on that patch series.
>>>
>>> Sorry, I've been totally swamped.
>>>
>>> I suspect that Sandstorm is okay, but I haven't had a chance to test
>>> it for real.  Sandstorm makes only limited use of proc and sysfs in
>>> containers, but I'll see if I can test it for real this weekend.
>> 
>> Testing this with unprivileged containers, I get
>> 
>> lxc-start: conf.c: lxc_mount_auto_mounts: 808 Operation not permitted - 
>> error mounting sysfs on 
>> /usr/lib/x86_64-linux-gnu/lxc/sys/devices/virtual/net flags 0
>>
>
> FWIW, it breaks also libvirt-lxc:
> Error: internal error: guest failed to start: Failed to re-mount /proc/sys on 
> /proc/sys flags=1021: Operation not permitted

Interesting.  I had not anticipated a failure there?  And it is failing
in remount?  Oh that is interesting.

That implies that there is some flag of the original mount of /proc that
the remount of /proc/sys is clearing, and that previously 

The flags specified are current rdonly,remount,bind so I expect there
are some other flags on proc that libvirt-lxc is clearing by accident
and we did not fail before because the kernel was not enforcing things.

What are the mount flags in a working libvirt-lxc?

Eric

--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to