Subject: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs

From: Andreas Schwab <[email-masked]>
Date: Wed, 07 Apr 2021 09:52:47 +0200

On Apr 06 2021, Michael Welsh Duggan wrote:

> But window_list() does call into lisp (nconc2, which calls Fnconc) when
> constructing Vwindow_list, and it uses Vwindow_list as a temporary in
> the process.  Is it possible that during that call something happens
> asynchronously (via gc?)

nconc doesn't allocate any lisp data, since it is destructive.

Andreas.

-- 
Andreas Schwab, [email-masked]
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."