[ 949.865078][T19974] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 949.865875][T19974] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 950.705205][T20031] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 950.705545][T20031] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode