Comment 2 for bug 1611279

Sorry for long delay in answer.

Remove option 'fork' can solve issues with de-activating and unlimit forks number.
socat will accept only one connection, and will terminates after that connection end.
But, when use direct telnet connection to socat, user will need to re-activate console before connection.
This may be not problem when user requests console via nova virt driver (it activates new console process for each new request)

Maybe is possible to re-execute socat command, when it finished (when single connection was closed)
Also will nice to add timeout checks for each connection.