[  753.478565] br0: port 1(c1) entered blocking state
[  753.478636] br0: port 1(c1) entered disabled state
[  753.478706] c1: entered allmulticast mode
[  753.478798] c1: entered promiscuous mode
[  753.530814] br0: port 2(c2) entered blocking state
[  753.530877] br0: port 2(c2) entered disabled state
[  753.530935] c2: entered allmulticast mode
[  753.531038] c2: entered promiscuous mode
[  753.583460] br0: port 3(c3) entered blocking state
[  753.583545] br0: port 3(c3) entered disabled state
[  753.583627] c3: entered allmulticast mode
[  753.583713] c3: entered promiscuous mode
[  753.638673] br0: port 4(sender) entered blocking state
[  753.638737] br0: port 4(sender) entered disabled state
[  753.638795] sender: entered allmulticast mode
[  753.638895] sender: entered promiscuous mode
[  753.639403] ip (16946) used greatest stack depth: 12088 bytes left
[  753.660009] br0: port 4(sender) entered blocking state
[  753.660091] br0: port 4(sender) entered forwarding state
[  753.660156] br0: port 3(c3) entered blocking state
[  753.660208] br0: port 3(c3) entered forwarding state
[  753.660269] br0: port 2(c2) entered blocking state
[  753.660326] br0: port 2(c2) entered forwarding state
[  753.660383] br0: port 1(c1) entered blocking state
[  753.660433] br0: port 1(c1) entered forwarding state
[  764.370120] br0: port 1(c1) entered disabled state
[  764.370413] c1 (unregistering): left allmulticast mode
[  764.370483] c1 (unregistering): left promiscuous mode
[  764.370530] br0: port 1(c1) entered disabled state
[  764.413097] br0: port 2(c2) entered disabled state
[  764.413370] c2 (unregistering): left allmulticast mode
[  764.413425] c2 (unregistering): left promiscuous mode
[  764.413463] br0: port 2(c2) entered disabled state
[  764.460163] br0: port 3(c3) entered disabled state
[  764.460470] c3 (unregistering): left allmulticast mode
[  764.460537] c3 (unregistering): left promiscuous mode
[  764.460591] br0: port 3(c3) entered disabled state
[  764.506124] br0: port 4(sender) entered disabled state
[  764.506744] sender (unregistering): left allmulticast mode
[  764.506815] sender (unregistering): left promiscuous mode
[  764.506865] br0: port 4(sender) entered disabled state