[ 947.500426][T20368] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 947.500902][T20368] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 948.276570][T20418] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 948.276893][T20418] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode