On Mon, Apr 06, 2009 at 01:47:42PM -0500, Serge E. Hallyn wrote:
If a container has no root, liblxc remounts /proc. If the system had marked / as MS_SHARED, then even though the container is in a new mounts namespace, the mount event is propagated back to the host mounts namespace, overwriting /proc. After that, for instance, ps will no longer show system processes.
A Fedora 11 default install has / MS_SHARED.
Make sure that root is not MS_SHARED before remounting /proc. I'm making it MS_SLAVE so that the container will receive mount events from the host, but not vice versa.
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Doh, that's rather annoying. ACK to this patch. Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|