GNU bug report logs - #27779
26.0.50: read -- Re-entering top level after C stack overflow

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From: Keith David Bershatsky <esq <at> lawlist.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: Paul Eggert <eggert <at> cs.ucla.edu>, npostavs <at> gmail.com, 27779 <at> debbugs.gnu.org, mail <at> vasilij.de
Subject: bug#27779: 26.0.50: read -- Re-entering top level after C stack overflow
Date: Thu, 21 Apr 2022 11:56:35 -0700

As to the most recent versions of Emacs 28 and the Master Branch, built on El Capitan, the issue is not present when using the test case:

(require 'cl-lib)

(defun make-deep-object (depth)
    (let ((obj 1))
      (while (> (cl-decf depth) 0)
        (setq obj (vector (list obj))))
      obj))

(let* ((print-circle t)
       (max-lisp-eval-depth most-positive-fixnum)
       (max-specpdl-size most-positive-fixnum)
       (deep-object (make-deep-object 4600))
       (string (prin1-to-string deep-object))
       (result (read string)))
  (when result
    (message "Success!")))

I do not have any computers running a higher version of the MacOS operating system.

Keith

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

> Date: [04-21-2022 06:33:29] <21 Apr 2022 15:33:29 +0200>
> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> To: Keith David Bershatsky <esq <at> lawlist.com>
> Cc: Paul Eggert <eggert <at> cs.ucla.edu>, mail <at> vasilij.de, npostavs <at> gmail.com, 27779 <at> debbugs.gnu.org
> Subject: Re: bug#27779: 26.0.50:  read -- Re-entering top level after C stack overflow
> 
> Keith David Bershatsky <esq <at> lawlist.com> writes:
> 
> > TEST:  Lanched without the terminal by opening Emacs.app.
> >
> > RESULT:  Re-entering top level after C stack overflow
> 
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
> 
> I've tried reproducing this issue, but with the test cases in the final
> message here, I get "Success" in the current Emacs.
> 
> Are you still seeing this issue in recent Emacs versions?

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