GNU bug report logs - #28329
25.2; Eshell: 40M+ output: Stack overflow in regexp matcher

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Package: emacs;

Reported by: Pierre Neidhardt <ambrevar <at> gmail.com>

Date: Sat, 2 Sep 2017 09:36:02 UTC

Severity: normal

Tags: moreinfo, unreproducible

Found in version 25.2

Done: Stefan Kangas <stefan <at> marxist.se>

Bug is archived. No further changes may be made.

Full log

Message #28 received at 28329 <at> debbugs.gnu.org (full text, mbox):

From: Noam Postavsky <npostavs <at> users.sourceforge.net>
To: Pierre Neidhardt <ambrevar <at> gmail.com>
Cc: 28329 <at> debbugs.gnu.org
Subject: Re: bug#28329: 25.2;
 Eshell: 40M+ output: Stack overflow in regexp matcher
Date: Sun, 05 Nov 2017 09:44:42 -0500

Pierre Neidhardt <ambrevar <at> gmail.com> writes:

> That being said, no issue doing that.  So the output "saved after the
> fact" does not seem to produce the issue.

Damn.  I guess the chunking is significant too.  Could you try saving
the output chunks, with this:

    (defvar eshell-chunk-number 0)
    (defconst eshell-output-chunk-dir "eshell-output")
    (make-directory eshell-output-chunk-dir t)

    (defun catch-eshell-output-chunk ()
      (write-region eshell-last-output-block-begin
                    eshell-last-output-end
                    (format "%s/chunk.%d"
                            eshell-output-chunk-dir
                            eshell-chunk-number)
                    nil :quiet)
      (setq eshell-chunk-number (1+ eshell-chunk-number)))

    (add-hook 'eshell-output-filter-functions
              'catch-eshell-output-chunk)

And then afterwards 'cat eshell-output/chunk.*' should hopefully
reproduce it?
This bug report was last modified 5 years and 329 days ago.

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