[  955.549008][T20183] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  955.549892][T20183] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  956.417863][T20250] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  956.418317][T20250] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode