[   12.350996] ip (1934) used greatest stack depth: 11896 bytes left
[   12.359867] br0: port 1(c1) entered blocking state
[   12.359912] br0: port 1(c1) entered disabled state
[   12.359958] c1: entered allmulticast mode
[   12.360012] c1: entered promiscuous mode
[   12.374756] br0: port 2(c2) entered blocking state
[   12.374829] br0: port 2(c2) entered disabled state
[   12.374900] c2: entered allmulticast mode
[   12.375002] c2: entered promiscuous mode
[   12.390040] br0: port 3(c3) entered blocking state
[   12.390078] br0: port 3(c3) entered disabled state
[   12.390112] c3: entered allmulticast mode
[   12.390159] c3: entered promiscuous mode
[   12.405334] br0: port 4(sender) entered blocking state
[   12.405398] br0: port 4(sender) entered disabled state
[   12.405469] sender: entered allmulticast mode
[   12.405557] sender: entered promiscuous mode
[   12.411294] br0: port 4(sender) entered blocking state
[   12.411334] br0: port 4(sender) entered forwarding state
[   12.411366] br0: port 3(c3) entered blocking state
[   12.411395] br0: port 3(c3) entered forwarding state
[   12.411424] br0: port 2(c2) entered blocking state
[   12.411449] br0: port 2(c2) entered forwarding state
[   12.411479] br0: port 1(c1) entered blocking state
[   12.411508] br0: port 1(c1) entered forwarding state
[   23.092266] br0: port 1(c1) entered disabled state
[   23.092716] c1 (unregistering): left allmulticast mode
[   23.092786] c1 (unregistering): left promiscuous mode
[   23.092815] br0: port 1(c1) entered disabled state
[   23.116067] br0: port 2(c2) entered disabled state
[   23.116266] c2 (unregistering): left allmulticast mode
[   23.116299] c2 (unregistering): left promiscuous mode
[   23.116330] br0: port 2(c2) entered disabled state
[   23.139052] br0: port 4(sender) entered disabled state
[   23.139132] br0: port 3(c3) entered disabled state
[   23.139286] sender (unregistering): left allmulticast mode
[   23.139319] sender (unregistering): left promiscuous mode
[   23.139349] br0: port 4(sender) entered disabled state
[   23.139681] c3 (unregistering): left allmulticast mode
[   23.139712] c3 (unregistering): left promiscuous mode
[   23.139743] br0: port 3(c3) entered disabled state