bug#36649: 27.0.50; pure space and pdumper

[Pip Cet]

On Sun, Jul 21, 2019 at 3:06 PM Robert Pluim <rpluim@gmail.com> wrote:

> Hmm, it crashed the first time I ran make, then I got distracted, so I
> ran make again later, and this time it built:
>
> make[2]: Nothing to be done for `all'.
>   ELC      char-fold.elc
> freeing symbol def-tmp-var

Hmm. So it worked with the second patch, but only when you reran make?
That's strange. Looking at the crash backtrace again, it seems that
this is the initial garbage collection, when everything should be
pristine. I still think it dies while marking the obarray, upon
encountering a symbol which has somehow become corrupted...