[ 2197.514690][T17311] br0: port 1(dummy0) entered blocking state
[ 2197.514916][T17311] br0: port 1(dummy0) entered disabled state
[ 2197.515128][T17311] dummy0: entered allmulticast mode
[ 2197.516058][T17311] dummy0: entered promiscuous mode
[ 2197.539778][T17312] br0: port 1(dummy0) entered blocking state
[ 2197.539952][T17312] br0: port 1(dummy0) entered forwarding state
[ 2199.679409][   T70] dummy0: left allmulticast mode
[ 2199.679592][   T70] dummy0: left promiscuous mode
[ 2199.679828][   T70] br0: port 1(dummy0) entered disabled state
[ 2201.036449][T28675] kworker/0:0 (28675) used greatest stack depth: 23376 bytes left