[  939.140309][T20917] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  939.140839][T20917] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  939.842616][T20978] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  939.842910][T20978] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode