[  784.644464] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  784.644581] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  784.745450] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  784.745512] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode