[  840.983993] 8021q: adding VLAN 0 to HW filter on device test-bond0
[  840.984097] test-bond1: (slave test-bond0): making interface the new active one
[  840.984196] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link
[  841.007416] 8021q: adding VLAN 0 to HW filter on device test-bond1
[  841.017949] test-bond1: entered promiscuous mode
[  841.017984] test-bond0: entered promiscuous mode
[  842.020189] test-bond1: left promiscuous mode
[  842.020245] test-bond0: left promiscuous mode
[  842.725026] test-dummy0: entered promiscuous mode
[  844.739746] test-dummy0: left promiscuous mode
[  844.858281] test-bond1 (unregistering): (slave test-bond0): Releasing backup interface
[  844.865871] test-bond1 (unregistering): Released all slaves
[  844.879929] test-bond0 (unregistering): Released all slaves