user:~/fasm/project$ qemu-system-x86_64 -s -S -chardev socket,host=localhost,port=1234,server,nowait,id=port1-char
qemu-system-x86_64: -chardev socket,host=localhost,port=1234,server,nowait,id=port1-char: Failed to bind socket: Address already in use
qemu-system-x86_64: -chardev socket,host=localhost,port=1234,server,nowait,id=port1-char: chardev: opening backend "socket" failed