[  966.830886][T19309] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  966.831912][T19309] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  967.557248][T19366] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  967.561422][T19366] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode