[  960.094443][T20789] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  960.094986][T20789] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  960.793739][T20853] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  960.794048][T20853] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode