[Simh] DZ issues on PDP10

[Mark Pizzolato]

On Saturday, April 14, 2018 at 7:34 AM, Quentin North wrote:
> There has been quite a bit of chat about the DZ handler recently, so I just
> wanted to share an issue that I have found whilst using a DZ mux on pdp10.
> When I have more than one terminal connected, intermittently i/o on one
> terminal stop until there is i/o on another terminal (usually me pressing
> return). I haven’t identified any cause but if I experience it again is there any
> diagnostics I can do to help pin it down?

First, please use the latest github code.
Second, if you see something like that, use CTRL-E and SHOW MUX to help
understand what's happening.  If you see a problem please create an issue
at https://github.com/simh/simh/issues.

Thanks.

- Mark