[  990.197096][T20980] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  990.197572][T20980] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  991.208176][T21035] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  991.208509][T21035] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode