[  950.360982][T20292] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  950.361441][T20292] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  951.113348][T20349] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  951.113636][T20349] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode