bug#41321: 27.0.91; Emacs aborts due to invalid pseudovector objects

[Pip Cet]

On Sat, May 30, 2020 at 4:32 PM Eli Zaretskii <eliz@gnu.org> wrote:
> > From: Pip Cet <pipcet@gmail.com>
> > Date: Sat, 30 May 2020 13:29:33 +0000
> > Cc: eggert@cs.ucla.edu, 41321@debbugs.gnu.org,
> >       Stefan Monnier <monnier@iro.umontreal.ca>
> > (The runtime stack isn't relevant, as far as I can tell, since we walk
> > that in 4-byte steps on such systems anyway.)
>
> I think it might be relevant for stack-based Lisp objects (if we keep
> requiring that Lisp objects are 8-byte aligned on 32-bit platforms).

We should never mark stack-based Lisp objects, no matter how
well-aligned they are!