[ 885.250618] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 885.250672] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 885.374851] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 885.374909] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode