management disable and reconfigure never finish

On a fresh install of 7.2 with :

• eth0 with dhcp as management, but has no ip on it (the switch port is member of a lag).
• when running xe host-management-disable from the local shell, the command never finish, you can cancel it but eth0 is still with management=true in pif-list.
• You have to reboot to get the change done.

After adding a bond using eth0 and eth1 and getting it to work

• xe host-management-reconfigure pif-uuid=<bond-uuid> never finish, i have to cancel it
• checking /etc/xensource-inventory display MANAGEMENT_INTERFACE set to xapi0 but i can't connect from xen center
• After a reboot, i can connect to it from xen center

Bugs :

• commands never finish
• you need to reboot to get modifications active