bug#57199: 29.0.50; Processes spawned by Emacs become zombie after restarting

[Eli Zaretskii]

> Date: Sun, 14 Aug 2022 13:30:26 +0600
> From:  Akib Azmain Turja via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> Some child processes don't terminate when Emacs kills them (e.g. Tor).

What is special in those processes?  How do they avoid being killed by
Emacs?

> So, trying to kill them after restarting Emacs with "restart-emacs"
> makes those processes zombie.  So I have to kill Emacs to remove those
> zombies.

If a process actively resists being killed, then what you see is the
expected behavior, determined by the underlying OS.