455.662288][   T51] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  455.752676][   T51] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0
[  455.848872][   T51] bridge_slave_1: left allmulticast mode
[  455.864739][   T51] bridge_slave_1: left promiscuous mode
[  455.871441][   T51] bridge0: port 2(bridge_slave_1) entered disabled state
[  455.880718][   T51] bridge_slave_0: left allmulticast mode
[  455.886996][   T51] bridge_slave_0: left promiscuous mode
[  455.892810][   T51] bridge0: port 1(bridge_slave_0) entered disabled state
[  456.050908][   T51] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
[  456.061743][   T51] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface
[  456.074123][   T51] bond0 (unregistering): Released all slaves
[  456.299278][   T51] hsr_slave_0: left promiscuous mode
[  456.309344][   T51] hsr_slave_1: left promiscuous mode
[  456.317315][   T51] batman_adv: batadv0: Interface deactivated: batadv_slave_0
[  456.325479][   T51] batman_adv: batadv0: Removing interface: batadv_slave_0
[  456.334817][   T51] batman_adv: batadv0: Interface deactivated: batadv_slave_1
[  456.342746][   T51] batman_adv: batadv0: Removing interface: batadv_slave_1
[  456.361211][   T51] veth1_macvtap: left promiscuous mode
[  456.367267][   T51] veth0_macvtap: left promiscuous mode
[  456.373219][   T51] veth1_vlan: left promiscuous mode
[  456.378667][   T51] veth0_vlan: left promiscuous mode
[  456.586622][   T51] team0 (unregistering): Port device team_slave_1 removed
[  456.611192][   T51] team0 (unregistering): Port device team_slave_0 removed
serialport: Connection terminated to allow system upgrade. Please reconnect at your convenience.