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

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Kangas <stefan <at> marxist.se>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#28329: closed (25.2; Eshell: 40M+ output: Stack overflow in
 regexp matcher)
Date: Sun, 30 Jun 2019 07:09:02 +0000

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Your message dated Sun, 30 Jun 2019 09:07:56 +0200
with message-id <CADwFkm=bu34ZUNgB357BLpzOJXUOLMXWfDBP-CpATun+11zZuQ <at> mail.gmail.com>
and subject line Re: bug#28329: 25.2; Eshell: 40M+ output: Stack overflow in regexp matcher
has caused the debbugs.gnu.org bug report #28329,
regarding 25.2; Eshell: 40M+ output: Stack overflow in regexp matcher
to be marked as done.

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[Message part 2 (message/rfc822, inline)]

From: Pierre Neidhardt <ambrevar <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2; Eshell: 40M+ output: Stack overflow in regexp matcher
Date: Sat, 02 Sep 2017 10:34:55 +0100

Today I update my Gentoo:

	> emerge --update --newuse --deep @world

in Eshell.  After a very long output (40M+), the shell started stuttering and hanging, messaging the following errors on every new line of output:

	error in process filter: eshell-watch-for-password-prompt: Stack overflow in regexp matcher
	error in process filter: Stack overflow in regexp matcher

The process became so slow it was unlikely it would ever complete, so I terminated it and had to re-run it in a *term*.



In GNU Emacs 25.2.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.15)
 of 2017-08-28 built on dhiov23k
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
System Description:	Gentoo Base System release 2.3

Configured using:
 'configure --prefix=/usr --build=x86_64-pc-linux-gnu
 --host=x86_64-pc-linux-gnu --mandir=/usr/share/man
 --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc
 --localstatedir=/var/lib --disable-dependency-tracking
 --disable-silent-rules --docdir=/usr/share/doc/emacs-25.2
 --htmldir=/usr/share/doc/emacs-25.2/html --libdir=/usr/lib64
 --program-suffix=-emacs-25 --infodir=/usr/share/info/emacs-25
 --localstatedir=/var
 --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp
 --with-gameuser=:gamestat --without-compress-install
 --with-file-notification=inotify --enable-acl --without-dbus
 --without-modules --without-gpm --without-hesiod --without-kerberos
 --without-kerberos5 --with-xml2 --without-selinux --with-gnutls
 --without-wide-int --with-zlib --with-sound=alsa --with-x --without-ns
 --without-gconf --without-gsettings --without-toolkit-scroll-bars
 --with-gif --with-jpeg --with-png --with-rsvg --with-tiff --with-xpm
 --with-imagemagick --with-xft --without-cairo --without-libotf
 --without-m17n-flt --with-x-toolkit=gtk3 --without-xwidgets
 GENTOO_PACKAGE=app-editors/emacs-25.2 'CFLAGS=-march=ivybridge -O2
 -pipe' CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed''

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND NOTIFY ACL GNUTLS LIBXML2
FREETYPE XFT ZLIB GTK3 X11

Important settings:
  value of $LANG: en_US.utf8
  locale-coding-system: utf-8-unix

[Message part 3 (message/rfc822, inline)]

From: Stefan Kangas <stefan <at> marxist.se>
To: Pierre Neidhardt <mail <at> ambrevar.xyz>
Cc: 28329-done <at> debbugs.gnu.org, Noam Postavsky <npostavs <at> users.sourceforge.net>,
 Pierre Neidhardt <ambrevar <at> gmail.com>
Subject: Re: bug#28329: 25.2;
 Eshell: 40M+ output: Stack overflow in regexp matcher
Date: Sun, 30 Jun 2019 09:07:56 +0200

Pierre Neidhardt <mail <at> ambrevar.xyz> writes:
> Sorry, I should have updated this thread.
> So I never got around reproducing the issue with Gentoo, and soon after
> I dropped Gentoo and moved to Guix, with which I've never been able to
> re-experience this issue, even on massive Eshell buffers (couple of 10M...).

Thank you for your reply.

> As far as I'm concerned, this could be closed, but maybe another Gentoo
> user out there would be able to tell us more.

OK, now closed.  If anyone else runs into any issues, they can always
open a new bug report.

Best regards,
Stefan Kangas

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