bug#39962: 27.0.90; Crash in Emacs 27.0.90

[Pieter van Oostrum]

I wrote:

> You probably mean vm-update-summary-and-mode-line (in frame #24). That one 
> indeed calls mapatoms. It uses it to find all the buffers. I don't know why 
> they don't use '(buffer-list)'.
> And then that calls vm-do-needed-summary-rebuild which calls 
> vm-set-summary-pointer

I checked, and VM uses mapatoms a lot, but always on its own obarrays. They use 
these as hash storages. So it shouldn't affect the Lisp obarray. So I was wrong 
about the (buffer-list).
-- 
Pieter van Oostrum
www: http://pieter.vanoostrum.org/
PGP key: [8DAE142BE17999C4]