On Fri, Feb 28, 2014 at 03:05:12PM +1100, Alexey Kardashevskiy wrote: > However once socket_scm_helper talked to "mon" (./qemu.monitor), I cannot > get any response from it via "socat UNIX-CONNECT:./qemu.monitor STDIN".
Have you tried with QMP? Perhaps the HMP monitor handles connect/disconnect differently from the QMP monitor. I guess this will require more step-by-step debugging of monitor.c to find out what's going on. Stefan