[   10.790418] ip (1920) used greatest stack depth: 12136 bytes left
[   10.851253] br0: port 1(c1) entered blocking state
[   10.851293] br0: port 1(c1) entered disabled state
[   10.851324] c1: entered allmulticast mode
[   10.851365] c1: entered promiscuous mode
[   10.863799] br0: port 2(c2) entered blocking state
[   10.863837] br0: port 2(c2) entered disabled state
[   10.863872] c2: entered allmulticast mode
[   10.863909] c2: entered promiscuous mode
[   10.876260] br0: port 3(c3) entered blocking state
[   10.876296] br0: port 3(c3) entered disabled state
[   10.876324] c3: entered allmulticast mode
[   10.876363] c3: entered promiscuous mode
[   10.888952] br0: port 4(sender) entered blocking state
[   10.888994] br0: port 4(sender) entered disabled state
[   10.889023] sender: entered allmulticast mode
[   10.889065] sender: entered promiscuous mode
[   10.893924] br0: port 4(sender) entered blocking state
[   10.893959] br0: port 4(sender) entered forwarding state
[   10.893994] br0: port 3(c3) entered blocking state
[   10.894023] br0: port 3(c3) entered forwarding state
[   10.894052] br0: port 2(c2) entered blocking state
[   10.894081] br0: port 2(c2) entered forwarding state
[   10.894108] br0: port 1(c1) entered blocking state
[   10.894144] br0: port 1(c1) entered forwarding state
[   21.559942] br0: port 1(c1) entered disabled state
[   21.560125] c1 (unregistering): left allmulticast mode
[   21.560158] c1 (unregistering): left promiscuous mode
[   21.560186] br0: port 1(c1) entered disabled state
[   21.581898] br0: port 3(c3) entered disabled state
[   21.582003] br0: port 2(c2) entered disabled state
[   21.582143] c3 (unregistering): left allmulticast mode
[   21.582183] c3 (unregistering): left promiscuous mode
[   21.582216] br0: port 3(c3) entered disabled state
[   21.582441] c2 (unregistering): left allmulticast mode
[   21.582485] c2 (unregistering): left promiscuous mode
[   21.582518] br0: port 2(c2) entered disabled state
[   21.597907] sender: left allmulticast mode
[   21.597945] sender: left promiscuous mode
[   21.597977] br0: port 4(sender) entered disabled state