[  936.818202][T20821] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  936.818755][T20821] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  937.484451][T20875] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  937.484759][T20875] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode