[  944.571047][T21129] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  944.571539][T21129] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  945.338863][T21193] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  945.339159][T21193] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode