[  974.697298][T31969] br0: port 1(c1) entered blocking state
[  974.697999][T31969] br0: port 1(c1) entered disabled state
[  974.698160][T31969] c1: entered allmulticast mode
[  974.699668][T31969] c1: entered promiscuous mode
[  974.784852][T31971] ip (31971) used greatest stack depth: 23544 bytes left
[  974.867846][T31974] br0: port 2(c2) entered blocking state
[  974.868017][T31974] br0: port 2(c2) entered disabled state
[  974.868184][T31974] c2: entered allmulticast mode
[  974.870363][T31974] c2: entered promiscuous mode
[  975.049582][T31979] br0: port 3(c3) entered blocking state
[  975.049779][T31979] br0: port 3(c3) entered disabled state
[  975.049946][T31979] c3: entered allmulticast mode
[  975.051708][T31979] c3: entered promiscuous mode
[  975.264128][T31984] br0: port 4(sender) entered blocking state
[  975.264463][T31984] br0: port 4(sender) entered disabled state
[  975.264767][T31984] sender: entered allmulticast mode
[  975.267387][T31984] sender: entered promiscuous mode
[  975.351101][T31986] br0: port 4(sender) entered blocking state
[  975.351324][T31986] br0: port 4(sender) entered forwarding state
[  975.351657][T31986] br0: port 3(c3) entered blocking state
[  975.351802][T31986] br0: port 3(c3) entered forwarding state
[  975.352092][T31986] br0: port 2(c2) entered blocking state
[  975.352233][T31986] br0: port 2(c2) entered forwarding state
[  975.352949][T31986] br0: port 1(c1) entered blocking state
[  975.353094][T31986] br0: port 1(c1) entered forwarding state
[  986.460687][   T12] br0: port 1(c1) entered disabled state
[  986.463767][   T12] c1 (unregistering): left allmulticast mode
[  986.464009][   T12] c1 (unregistering): left promiscuous mode
[  986.464221][   T12] br0: port 1(c1) entered disabled state
[  986.631151][   T12] br0: port 2(c2) entered disabled state
[  986.638052][   T12] c2 (unregistering): left allmulticast mode
[  986.638370][   T12] c2 (unregistering): left promiscuous mode
[  986.640707][   T12] br0: port 2(c2) entered disabled state
[  986.785842][   T12] br0: port 3(c3) entered disabled state
[  986.788894][   T12] c3 (unregistering): left allmulticast mode
[  986.789083][   T12] c3 (unregistering): left promiscuous mode
[  986.789246][   T12] br0: port 3(c3) entered disabled state
[  986.963512][   T12] br0: port 4(sender) entered disabled state
[  986.979797][   T12] sender (unregistering): left allmulticast mode
[  986.980092][   T12] sender (unregistering): left promiscuous mode
[  986.980366][   T12] br0: port 4(sender) entered disabled state