[  945.037087][T20235] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  945.037812][T20235] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  945.874359][T20297] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  945.874828][T20297] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode