GNU logs - #6015, boring messages

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Subject: bug#6015: 23.1.96; Internal error in rng-validate-mode for very long attribute
Resent-From: Jay Berkenbilt <ejb@HIDDEN>
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To: 6015 <at> debbugs.gnu.org
From: Jay Berkenbilt <ejb@HIDDEN>
Message-ID: <20100423104120.1616631296.qww314159@HIDDEN>
Date: Fri, 23 Apr 2010 10:41:20 -0400
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Create a file called "a.xml" and place the buffer in fundamental mode by
typing

M-x fundamental-mode RET

Create a simple XML file consisting of a single element with a single
attribute whose value is 40,000 characters long:

<x value="CTRL-U 40000 w"/> RET

and save the file.  Reload the file so that emacs enters nxml mode upon
initial load:

C-x C-v RET

Observe the following errors in *Messages*:

File mode specification error: (error "Stack overflow in regexp matcher")
Error during redisplay: (error Stack overflow in regexp matcher)
Internal error in rng-validate-mode triggered at buffer position 4. Stack overfl

Information below pertains to my environment, but the issue reported
above can be reproduced with emacs -Q.

In GNU Emacs 23.1.96.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.10.4)
 of 2010-04-20 on motoko.argon.local
Windowing system distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--prefix=/opt/tps/packages/linux.x86_64.rhel5/emacs-23.1.96-1''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: nXML

Minor modes in effect:
  which-function-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
<return> C-x C-v C-g C-x C-v C-a C-k C-g C-x C-f C-a 
C-k C-g C-x C-g 6 5 2 C-g C-x b <return> C-x C-g 6 
5 2 <return> C-x C-z C-p C-e M-b M-b M-f M-f M-b C-b 
u n d e f , SPC C-x C-x C-x C-x C-x C-s C-x b a . <tab> 
<return> C-x C-v C-g C-v C-l M-< C-s < d e s c r t 
<backspace> p t i o n C-a C-x C-v <return> y M-x g 
o t o SPC c SPC <return> 1 4 5 2 1 0 8 5 <return> C-f 
M-f M-f M-f C-v C-e C-g C-x C-x M-< M-p M-x M-p <return> 
M-p <return> C-a C-SPC C-n M-w C-x C-f / t m p / a 
<backspace> b . x m l <return> C-y M-< M-> M-< C-s 
v a l u e s <backspace> = C-s C-f M-x r e p l SPC s 
SPC <return> { <backspace> [ ^ " ] C-a C-k C-g M-x 
r e p l SPC r e SPC <return> g SPC <return> C-y <return> 
w <return> <backspace> <backspace> <backspace> / > 
M-< C-s v a l u e = C-s C-f M-l M-< M-f M-b M-d x M-d 
M-d M-d M-d M-d C-d C-d C-d C-x C-s y C-x C-v <return> 
M-> M-? M-> M-< C-f C-f C-f C-f C-f C-f C-f C-f C-f 
C-f C-x h M-w C-x r s a M-f M-f M-f M-b C-k C-u 4 0 
0 0 0 w M-x C-g <C-backspace> M-< M-x f u n d a m <tab> 
<return> C-e w <backspace> C-u 4 0 0 0 0 w " / > M-> 
M-< C-x C-s C-x C-v <return> M-x r e p o r t SPC e 
SPC b SPC <return>

Recent messages:
Saved text until "wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww"/>
"
Quit [2 times]
Undo!
Mark set [3 times]
Saving file /tmp/b.xml...
Wrote /tmp/b.xml
File mode specification error: (error "Stack overflow in regexp matcher")
Error during redisplay: (error Stack overflow in regexp matcher)
Internal error in rng-validate-mode triggered at buffer position 4. Stack overflow in regexp matcher

Load-path shadows:
/home/jberkenb/elisp/startup hides /opt/tps/packages/linux.x86_64.rhel5/emacs-23.1.96-1/share/emacs/23.1.96/lisp/startup

Features:
(shadow warnings emacsbug help-mode view sgml-mode nxml-uchnm rng-xsd
xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse
nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode
nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok perl-mode
desktop rmail multi-isearch tabify man assoc vc-rcs epa-file epa derived
epg flow-fill starttls dabbrev auth-source mailalias tls q-valid-addr
newcomment flyspell ispell w3m-form w3m-symbol sort gnus-cite ansi-color
mail-extr gnus-async gnus-bcklg parse-time gnus-ml disp-table vc-accurev
paranoid-backup byte-opt bytecomp byte-compile nndraft nnmh nnfolder
gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art
mm-uu mml2015 epg-config mm-view smime dig nntp gnus-cache gnus-sum
gnus-group gnus-undo nndoc nnoo nnmail mail-source format-spec
gnus-start gnus-spec gnus-int gnus-range gnus-win gnus gnus-ems vc-svn
vc vc-dispatcher w3m browse-url doc-view image-mode dired timezone
w3m-hist w3m-fb w3m-ems w3m-ccl ccl w3m-favicon w3m-image w3m-proc
w3m-util qmime qmime-compose qmime-view which-func imenu filecache
server uniquify compile ange-ftp comint ring message ecomplete rfc822
mml mml-sec password-cache mm-decode mm-bodies mm-encode mailcap
mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader
gnus-util netrc time-date mm-util mail-prsvr gmm-utils mailheader
canlock sha1 hex-util hashcash mail-utils cc-styles cc-align cc-engine
cc-vars cc-defs smtpmail sendmail regexp-opt project advice help-fns
advice-preload jka-compr cus-edit easymenu wid-edit cus-start cus-load
edmacro kmacro cl cl-19 tooltip ediff-hook vc-hooks lisp-float-type
mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev loaddefs button minibuffer faces cus-face files text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Jay Berkenbilt <ejb@HIDDEN>
Subject: bug#6015: Acknowledgement (23.1.96; Internal error in
 rng-validate-mode for very long attribute)
Message-ID: <handler.6015.B.127203370713534.ack <at> debbugs.gnu.org>
References: <20100423104120.1616631296.qww314159@HIDDEN>
X-Gnu-PR-Message: ack 6015
X-Gnu-PR-Package: emacs
Reply-To: 6015 <at> debbugs.gnu.org
Date: Fri, 23 Apr 2010 14:42:02 +0000

Thank you for filing a new bug report with GNU.

This is an automatically generated reply to let you know your message
has been received.

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interested parties for their attention; they will reply in due course.

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Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#6015: 23.1.96; Internal error in rng-validate-mode for very long attribute
Resent-From: Andrew Hyatt <ahyatt@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
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Resent-Date: Sun, 07 Aug 2016 04:10:02 +0000
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To: Jay Berkenbilt <ejb@HIDDEN>
Cc: 6015 <at> debbugs.gnu.org
From: Andrew Hyatt <ahyatt@HIDDEN>
References: <20100423104120.1616631296.qww314159@HIDDEN>
Date: Sun, 07 Aug 2016 00:09:42 -0400
In-Reply-To: <20100423104120.1616631296.qww314159@HIDDEN> (Jay
 Berkenbilt's message of "Fri, 23 Apr 2010 10:41:20 -0400")
Message-ID: <m2poplgqyh.fsf@HIDDEN>
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1.50 (darwin)
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Thanks for the bug report.  This still happens in Emacs 25.

However, this seems to be an unusually large value, and not something
users would ordinarily experience.  Due to that, I'm going to change the
bug priority to minor.  

Jay Berkenbilt <ejb@HIDDEN> writes:

> Create a file called "a.xml" and place the buffer in fundamental mode by
> typing
>
> M-x fundamental-mode RET
>
> Create a simple XML file consisting of a single element with a single
> attribute whose value is 40,000 characters long:
>
> <x value="CTRL-U 40000 w"/> RET
>
> and save the file.  Reload the file so that emacs enters nxml mode upon
> initial load:
>
> C-x C-v RET
>
> Observe the following errors in *Messages*:
>
> File mode specification error: (error "Stack overflow in regexp matcher")
> Error during redisplay: (error Stack overflow in regexp matcher)
> Internal error in rng-validate-mode triggered at buffer position 4. Stack overfl
>
> Information below pertains to my environment, but the issue reported
> above can be reproduced with emacs -Q.
>
>
>
> In GNU Emacs 23.1.96.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.10.4)
>  of 2010-04-20 on motoko.argon.local
> Windowing system distributor `The X.Org Foundation', version 11.0.70101000
> configured using `configure  '--prefix=/opt/tps/packages/linux.x86_64.rhel5/emacs-23.1.96-1''
>
> Important settings:
>   value of $LC_ALL: nil
>   value of $LC_COLLATE: nil
>   value of $LC_CTYPE: nil
>   value of $LC_MESSAGES: nil
>   value of $LC_MONETARY: nil
>   value of $LC_NUMERIC: nil
>   value of $LC_TIME: nil
>   value of $LANG: en_US.UTF-8
>   value of $XMODIFIERS: @im=none
>   locale-coding-system: utf-8-unix
>   default enable-multibyte-characters: t
>
> Major mode: nXML
>
> Minor modes in effect:
>   which-function-mode: t
>   tooltip-mode: t
>   mouse-wheel-mode: t
>   file-name-shadow-mode: t
>   global-font-lock-mode: t
>   font-lock-mode: t
>   blink-cursor-mode: t
>   auto-encryption-mode: t
>   auto-compression-mode: t
>   column-number-mode: t
>   line-number-mode: t
>
> Recent input:
> <return> C-x C-v C-g C-x C-v C-a C-k C-g C-x C-f C-a 
> C-k C-g C-x C-g 6 5 2 C-g C-x b <return> C-x C-g 6 
> 5 2 <return> C-x C-z C-p C-e M-b M-b M-f M-f M-b C-b 
> u n d e f , SPC C-x C-x C-x C-x C-x C-s C-x b a . <tab> 
> <return> C-x C-v C-g C-v C-l M-< C-s < d e s c r t 
> <backspace> p t i o n C-a C-x C-v <return> y M-x g 
> o t o SPC c SPC <return> 1 4 5 2 1 0 8 5 <return> C-f 
> M-f M-f M-f C-v C-e C-g C-x C-x M-< M-p M-x M-p <return> 
> M-p <return> C-a C-SPC C-n M-w C-x C-f / t m p / a 
> <backspace> b . x m l <return> C-y M-< M-> M-< C-s 
> v a l u e s <backspace> = C-s C-f M-x r e p l SPC s 
> SPC <return> { <backspace> [ ^ " ] C-a C-k C-g M-x 
> r e p l SPC r e SPC <return> g SPC <return> C-y <return> 
> w <return> <backspace> <backspace> <backspace> / > 
> M-< C-s v a l u e = C-s C-f M-l M-< M-f M-b M-d x M-d 
> M-d M-d M-d M-d C-d C-d C-d C-x C-s y C-x C-v <return> 
> M-> M-? M-> M-< C-f C-f C-f C-f C-f C-f C-f C-f C-f 
> C-f C-x h M-w C-x r s a M-f M-f M-f M-b C-k C-u 4 0 
> 0 0 0 w M-x C-g <C-backspace> M-< M-x f u n d a m <tab> 
> <return> C-e w <backspace> C-u 4 0 0 0 0 w " / > M-> 
> M-< C-x C-s C-x C-v <return> M-x r e p o r t SPC e 
> SPC b SPC <return>
>
> Recent messages:
> Saved text until "wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww"/>
> "
> Quit [2 times]
> Undo!
> Mark set [3 times]
> Saving file /tmp/b.xml...
> Wrote /tmp/b.xml
> File mode specification error: (error "Stack overflow in regexp matcher")
> Error during redisplay: (error Stack overflow in regexp matcher)
> Internal error in rng-validate-mode triggered at buffer position 4. Stack overflow in regexp matcher
>
> Load-path shadows:
> /home/jberkenb/elisp/startup hides /opt/tps/packages/linux.x86_64.rhel5/emacs-23.1.96-1/share/emacs/23.1.96/lisp/startup
>
> Features:
> (shadow warnings emacsbug help-mode view sgml-mode nxml-uchnm rng-xsd
> xsd-regexp rng-cmpct rng-nxml rng-valid rng-loc rng-uri rng-parse
> nxml-parse rng-match rng-dt rng-util rng-pttrn nxml-ns nxml-mode
> nxml-outln nxml-rap nxml-util nxml-glyph nxml-enc xmltok perl-mode
> desktop rmail multi-isearch tabify man assoc vc-rcs epa-file epa derived
> epg flow-fill starttls dabbrev auth-source mailalias tls q-valid-addr
> newcomment flyspell ispell w3m-form w3m-symbol sort gnus-cite ansi-color
> mail-extr gnus-async gnus-bcklg parse-time gnus-ml disp-table vc-accurev
> paranoid-backup byte-opt bytecomp byte-compile nndraft nnmh nnfolder
> gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art
> mm-uu mml2015 epg-config mm-view smime dig nntp gnus-cache gnus-sum
> gnus-group gnus-undo nndoc nnoo nnmail mail-source format-spec
> gnus-start gnus-spec gnus-int gnus-range gnus-win gnus gnus-ems vc-svn
> vc vc-dispatcher w3m browse-url doc-view image-mode dired timezone
> w3m-hist w3m-fb w3m-ems w3m-ccl ccl w3m-favicon w3m-image w3m-proc
> w3m-util qmime qmime-compose qmime-view which-func imenu filecache
> server uniquify compile ange-ftp comint ring message ecomplete rfc822
> mml mml-sec password-cache mm-decode mm-bodies mm-encode mailcap
> mail-parse rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader
> gnus-util netrc time-date mm-util mail-prsvr gmm-utils mailheader
> canlock sha1 hex-util hashcash mail-utils cc-styles cc-align cc-engine
> cc-vars cc-defs smtpmail sendmail regexp-opt project advice help-fns
> advice-preload jka-compr cus-edit easymenu wid-edit cus-start cus-load
> edmacro kmacro cl cl-19 tooltip ediff-hook vc-hooks lisp-float-type
> mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe
> lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
> mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
> georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
> korean japanese hebrew greek romanian slovak czech european ethiopic
> indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
> abbrev loaddefs button minibuffer faces cus-face files text-properties
> overlay md5 base64 format env code-pages mule custom widget
> hashtable-print-readable backquote make-network-process dbusbind
> system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)

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severity 6015 minor

Message sent to bug-gnu-emacs@HIDDEN:

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Subject: bug#6015: 23.1.96; Internal error in rng-validate-mode for very long attribute
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From: Lars Ingebrigtsen <larsi@HIDDEN>
References: <20100423104120.1616631296.qww314159@HIDDEN>
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Date: Sun, 18 Jul 2021 15:29:48 +0200
In-Reply-To: <20100423104120.1616631296.qww314159@HIDDEN> (Jay
 Berkenbilt's message of "Fri, 23 Apr 2010 10:41:20 -0400")
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 Content preview:  Jay Berkenbilt <ejb@HIDDEN> writes: > Create a file called
 "a.xml" and place the buffer in fundamental mode by > typing > > M-x
 fundamental-mode
 RET > > Create a simple XML file consisting of a single element with a single
 > attribute w [...] 
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Jay Berkenbilt <ejb@HIDDEN> writes:

> Create a file called "a.xml" and place the buffer in fundamental mode by
> typing
>
> M-x fundamental-mode RET
>
> Create a simple XML file consisting of a single element with a single
> attribute whose value is 40,000 characters long:
>
> <x value="CTRL-U 40000 w"/> RET
>
> and save the file.  Reload the file so that emacs enters nxml mode upon
> initial load:
>
> C-x C-v RET
>
> Observe the following errors in *Messages*:
>
> File mode specification error: (error "Stack overflow in regexp matcher")

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

I'm able to reproduce this problem in Emacs 28, too, but I have to up
the number of ws to 400000.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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