bug#45198: 28.0.50; Sandbox mode

[Eli Zaretskii]

> Date: Sat, 17 Apr 2021 19:15:06 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: alan@idiocy.org, mattiase@acm.org, 45198@debbugs.gnu.org,
>  stefankangas@gmail.com, joaotavora@gmail.com, monnier@iro.umontreal.ca
> 
> What I'm missing is some details about what operations (in Emacs
> terms) should not be allowed in the sandbox, and how can users take
> advantage of that.  I asked more questions about this a few days ago,
> but got no responses.  I don't really understand how we can
> intelligently talk about using this in Emacs while we remain on the
> level of file descriptors and syscalls.

Btw, please don't interpret the above as pressure to get these issues
discussed and figured out.  There's no pressure; all I'm saying is
that if this is preliminary code for which we don't yet have a clear
common idea about its practical usage, it should be on a branch.