Hi all
http://bugs.centos.org/view.php?id=8417
In short - it's not Centos bug, it's probably bug of
iproute2<->netlink interactions on
kernel 3.10.0-229
As workaround you can fallback to prev kernel and command
# ip link set macvlanX namens PID
would work.
b.r.
Maxim Kozin