[CRIU] Restore fails in overlay2

[Cyrill Gorcunov]

On Fri, Sep 23, 2016 at 02:01:35PM -0300, Marcos Lilljedahl wrote:
>    Hi guys, this issue has been posted into runC issue tracker and I'm
>    wondering if anyone has a hint about it:
>    https://github.com/opencontainers/runc/issues/1070#issuecomment-249135456
>    I've already requested for the CRIU restore.log.

I guess avagin@ might shed some light on this but he is on vacation for a while.
restore.log is definitely would help a lot. Note please that log depends on
verbosity level passed (not sure which one docker is using), the best is
where -v4 option passed to criu.