[  720.618915] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  720.619035] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  720.750299] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  720.750390] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode