[  938.606318][T19886] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  938.606805][T19886] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  939.480359][T19948] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  939.480784][T19948] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode