[ 950.485909][T20872] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 950.486501][T20872] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 951.226516][T20929] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 951.226819][T20929] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode