[  960.534407][T20475] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  960.534908][T20475] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  961.228147][T20536] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  961.228445][T20536] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode