How to rescue ctwm from its deaf state

Hi all,

Sometimes, usually after I use one of my self-defined hotkeys, ctwm
goes into a state in which it appears not to hear keypresses or
mouseclicks. You can still move the mouse pointer around, but can't do
anything else.

When this happens, issuing a kill -s SIGHUP $CTWMPID from a virtual
terminal either does nothing or makes it worse (now  you can't move the
mouse).

The whole thing seems to be intermittent, so before I go to all the
trouble to make a minimal working example of the defect, which would be
hard to do because of the intermittence, I was hoping someone on the
list has seen this before and knows how to bust out of it without going
Ctrl+Alt+F1 and then ctrl+C'ing out of the startx command that ran ctwm
in the first place.

Thanks,

SteveT

Steve Litt
September 2017 featured book: Manager's Guide to Technical
Troubleshooting Brand new, second edition
http://www.troubleshooters.com/mgr