[  972.656973][T19734] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  972.657510][T19734] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  973.275628][T19765] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  973.275982][T19765] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode