[  943.479161][T20858] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  943.479704][T20858] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  944.422576][T20908] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  944.422882][T20908] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode