From: Todd C. Miller <millert@openbsd.org>
Subject: Re: changes to signal handling with respect to ksh ?
To: Walter Alejandro Iglesias <wai@roquesor.com>
Cc: Theo Buehler <tb@theobuehler.org>, Marc Espie <marc.espie.openbsd@gmail.com>, Claudio Jeker <cjeker@diehard.n-r-g.com>, ports@openbsd.org
Date: Thu, 08 Aug 2024 09:31:47 -0600

You might try changing that raise(SIGSTOP) in terminal_thread() to
kill(getpid(), SIGSTOP).  You want to stop the entire process, not
just the terminal thread.

Prior to that commit, each thread that received SIGTSTP would be
stopped.  After the commit, only the terminal thread will be stopped.

 - todd