[ 2250.133883][T28723] br0: port 1(dummy0) entered blocking state
[ 2250.134205][T28723] br0: port 1(dummy0) entered disabled state
[ 2250.134505][T28723] dummy0: entered allmulticast mode
[ 2250.135518][T28723] dummy0: entered promiscuous mode
[ 2250.163153][T28724] br0: port 1(dummy0) entered blocking state
[ 2250.163582][T28724] br0: port 1(dummy0) entered forwarding state
[ 2251.130913][    C0] clocksource: Watchdog remote CPU 3 read timed out
[ 2253.107059][   T12] dummy0: left allmulticast mode
[ 2253.108502][   T12] dummy0: left promiscuous mode
[ 2253.108892][   T12] br0: port 1(dummy0) entered disabled state