bug#39962: 27.0.90; Crash in Emacs 27.0.90

[Pip Cet]

On Sat, Mar 14, 2020 at 4:00 PM Paul Eggert <eggert@cs.ucla.edu> wrote:
> > +/* If P is a pointer into a buffer, killed or live, return the buffer.
> > +   Otherwise, return nil.  M is a pointer to the mem_block for P.  */
> > +
> > +static Lisp_Object
> > +valid_buffer_holding (struct mem_node *m, void *p)
> > +{
> > +  /* P must point into the block, and the buffer
> > +     must not have been killed.  */
>
> The two comments do not seem to agree. Surely second one should say just
> something like "P must point into block M."

Thanks! Revised patch attached.

0001-Don-t-collect-reachable-killed-buffers-during-GC.patch
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