[ 942.118930][T20900] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 942.119466][T20900] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 942.854636][T20961] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 942.854937][T20961] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode