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

[Paul Eggert]

On 5/30/20 10:22 AM, Eli Zaretskii wrote:
> > > > That's not correct for !USE_LSB_TAG, where LISP_ALIGNMENT is merely the native
> > > > alignment (there's no need to align objects to 8 because the tags are at the
> > > > high end).
> > > I'm using a !USE_LSB_TAG build, but LISP_ALIGNMENT is 8 nonetheless.
> > That's true for your platform, since alignof (max_align_t) == 8 on your
> > platform.
> No, it's 16.  And I don't understand what does that have to do with
> LISP_ALIGNMENT on the master branch, since we all but removed
> max_align_t from there.

Oh, I thought you were talking about the emacs-27 branch which is still 
using max_align_t.

You're right that LISP_ALIGNMENT is 8 on your platform on the master 
branch. However, my comment "That's not correct for !USE_LSB_TAG ..." 
(Bug#41321#305) was responding to Pip Cet's earlier comment "I would 
prefer simply defining LISP_ALIGNMENT to be 8" (Bug#41321#272) which was 
talking about the emacs-27 branch.