[  948.900279][T20279] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  948.900769][T20279] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  949.802214][T20342] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  949.811800][T20342] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode