[    9.847184] ip (1850) used greatest stack depth: 12296 bytes left
[    9.920283] ip (1878) used greatest stack depth: 12232 bytes left
[    9.988965] br0: port 1(c1) entered blocking state
[    9.988988] br0: port 1(c1) entered disabled state
[    9.989008] c1: entered allmulticast mode
[    9.989043] c1: entered promiscuous mode
[   10.003376] br0: port 2(c2) entered blocking state
[   10.003395] br0: port 2(c2) entered disabled state
[   10.003418] c2: entered allmulticast mode
[   10.003448] c2: entered promiscuous mode
[   10.017824] br0: port 3(c3) entered blocking state
[   10.017870] br0: port 3(c3) entered disabled state
[   10.017918] c3: entered allmulticast mode
[   10.017979] c3: entered promiscuous mode
[   10.024352] ip (1913) used greatest stack depth: 11992 bytes left
[   10.032348] br0: port 4(sender) entered blocking state
[   10.032370] br0: port 4(sender) entered disabled state
[   10.032391] sender: entered allmulticast mode
[   10.032424] sender: entered promiscuous mode
[   10.038019] br0: port 4(sender) entered blocking state
[   10.038037] br0: port 4(sender) entered forwarding state
[   10.038054] br0: port 3(c3) entered blocking state
[   10.038070] br0: port 3(c3) entered forwarding state
[   10.038087] br0: port 2(c2) entered blocking state
[   10.038104] br0: port 2(c2) entered forwarding state
[   10.038119] br0: port 1(c1) entered blocking state
[   10.038136] br0: port 1(c1) entered forwarding state
[   20.782348] br0: port 1(c1) entered disabled state
[   20.782489] c1 (unregistering): left allmulticast mode
[   20.782513] c1 (unregistering): left promiscuous mode
[   20.782531] br0: port 1(c1) entered disabled state
[   20.796262] br0: port 2(c2) entered disabled state
[   20.796369] c2 (unregistering): left allmulticast mode
[   20.796388] c2 (unregistering): left promiscuous mode
[   20.796403] br0: port 2(c2) entered disabled state
[   20.815257] br0: port 3(c3) entered disabled state
[   20.815370] c3 (unregistering): left allmulticast mode
[   20.815389] c3 (unregistering): left promiscuous mode
[   20.815405] br0: port 3(c3) entered disabled state
[   20.832274] sender: left allmulticast mode
[   20.832293] sender: left promiscuous mode
[   20.832309] br0: port 4(sender) entered disabled state