[lxc-devel] [PATCH 1/1] pivot_root: switch to a new mechanism (v2)

[Eric W. Biederman]

Andy Lutomirski <luto at amacapital.net> writes:

> To me, this smells like MNT_DETACH does something awful when there are
> mounts under the detached mount.
>
> For example:
>
> mount --rbind / /mnt
> umount -l /mnt
>
> does *not* end well on my system.  I find it hard to believe that this
> behavior is intentional.

Hmm.  I think what is happening on your system is in some way related to
mount propgatation and systemd.   On my debian stable system system it
works without problems.

Eric