[  840.195282] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  840.195423] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  840.302461] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  840.302539] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode