[  840.901356] 8021q: adding VLAN 0 to HW filter on device test-bond0
[  840.901459] test-bond1: (slave test-bond0): making interface the new active one
[  840.901542] test-bond1: (slave test-bond0): Enslaving as an active interface with an up link
[  840.924602] 8021q: adding VLAN 0 to HW filter on device test-bond1
[  840.935066] test-bond1: entered promiscuous mode
[  840.935139] test-bond0: entered promiscuous mode
[  841.937174] test-bond1: left promiscuous mode
[  841.937249] test-bond0: left promiscuous mode
[  842.643689] test-dummy0: entered promiscuous mode
[  844.658947] test-dummy0: left promiscuous mode
[  844.785442] test-bond1 (unregistering): (slave test-bond0): Releasing backup interface
[  844.792297] test-bond1 (unregistering): Released all slaves
[  844.801202] test-bond0 (unregistering): Released all slaves