batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. SYZFAIL: repeatedly failed to execute the program proc=5 req=37 state=1 status=7 (errno 9: Bad file descriptor) connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF