[ 950.740601][T20029] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 950.741148][T20029] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 951.463356][T20083] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 951.464044][T20083] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode