[  946.206973][T20825] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  946.207443][T20825] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  947.023628][T20875] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  947.024839][T20875] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode