bug#22347: 23.4 / 24; jump over block hangs with emacs at 100% cpu till control + g

[Wilfried Goesgens]

From: w.goesgens@outgesourced.org
To: bug-gnu-emacs@gnu.org
Subject: 23.4; jump over block hangs with emacs at 100% cpu till control + g
Date: Mon, 11 Jan 2016 16:52:59 +0100
Message-ID: <rhxr3hoxgdg.fsf@w.goesgens@outgesourced.org>
--text follows this line--


 Using emacs in markdown mode. Trying to jump over this section using
 strg+ cursor forward / backward.

 Emacs sits dead eating cpu:

@EXAMPLES
@startDocuBlockInline EDGCOL_02_outEdges
@EXAMPLE_ARANGOSH_OUTPUT{EDGCOL_02_outEdges}
@endDocuBlock EDGCOL_02_outEdges
  db._create("vertex");
  db._createEdgeCollection("relation");
~ var myGraph = {};
  myGraph.v1 = db.vertex.insert({ name : "vertex 1" });
  myGraph.v2 = db.vertex.insert({ name : "vertex 2" });
| myGraph.e1 = db.relation.insert(myGraph.v1, myGraph.v2,
                                  { label : "knows"});
  db._document(myGraph.e1);
  db.relation.outEdges(myGraph.v1._id);
  db.relation.outEdges(myGraph.v2._id);
~ db._drop("relation");
~ db._drop("vertex");
@END_EXAMPLE_ARANGOSH_OUTPUT


tried with emacs 23 and 24.



In GNU Emacs 23.4.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.22)
 of 2013-12-22 on binet, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11604000
configured using `configure  '--build' 'x86_64-linux-gnu' '--build' 
'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib' 
'--libexecdir=/usr/lib' '--localstatedir=/var/lib' 
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes' 
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.4/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.4/site-lisp:/usr/share/emacs/site-lisp' 
'--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes' 
'--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector 
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall 
-DDEBIAN -O2' 'CPPFLAGS=-D_FORTIFY_SOURCE=2''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t

Major mode: Shell-script

Minor modes in effect:
  text-scale-mode: t
  cua-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
  line-number-mode: t
  transient-mark-mode: t

Recent input:
e <down> <left> <left> <left> SPC - e C-x C-s <up>
<up> <end> <return> <tab> e c h o SPC " S U B : SPC
$ # <backspace> g " C-x C-s <down> <C-right> <C-right>
<C-right> <C-right> <C-right> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <right> <right>
<right> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> $ g { <backspace>
} <left> <left> { <down> <home> <S-down> <delete> <up>
<end> <C-left> <C-left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> <right> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> $ g
<backspace> { <right> <left> g } C-x C-s <left> <left>
<left> <left> <up> <return> <tab> C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_
C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ C-_ <S-up> <delete>
<down> <down> <down> <delete> <delete> <delete> <delete>
<delete> <delete> <delete> <delete> <delete> <up> <up>
<tab> <down> <tab> <up> <C-right> <C-right> <C-right>
<C-right> <C-right> C-x C-s M-x r e p o r t - b u <tab>
<return>

Recent messages:
Wrote /local/home/willi/testreplace.sh
Saving file /local/home/willi/testreplace.sh...
Wrote /local/home/willi/testreplace.sh
Saving file /local/home/willi/testreplace.sh...
Wrote /local/home/willi/testreplace.sh
Saving file /local/home/willi/testreplace.sh...
Wrote /local/home/willi/testreplace.sh
Undo! [80 times]
Saving file /local/home/willi/testreplace.sh...
Wrote /local/home/willi/testreplace.sh

Load-path shadows:
~/.emacs.d/color-theme hides 
/usr/share/emacs23/site-lisp/emacs-goodies-el/color-theme
/usr/share/emacs23/site-lisp/css-mode/css-mode hides 
/usr/share/emacs/site-lisp/css-mode/css-mode
/usr/share/emacs/23.4/site-lisp/debian-startup hides 
/usr/share/emacs/site-lisp/debian-startup
/usr/share/emacs23/site-lisp/cmake-data/cmake-mode hides 
/usr/share/emacs/site-lisp/cmake-mode
/usr/share/emacs23/site-lisp/html-helper-mode/tempo hides 
/usr/share/emacs/23.4/lisp/tempo
/usr/share/emacs23/site-lisp/dictionaries-common/ispell hides 
/usr/share/emacs/23.4/lisp/textmodes/ispell
/usr/share/emacs/site-lisp/rst hides 
/usr/share/emacs/23.4/lisp/textmodes/rst
/usr/share/emacs23/site-lisp/dictionaries-common/flyspell hides 
/usr/share/emacs/23.4/lisp/textmodes/flyspell
/usr/share/emacs23/site-lisp/css-mode/css-mode hides 
/usr/share/emacs/23.4/lisp/textmodes/css-mode
/usr/share/emacs23/site-lisp/html-helper-mode/hhm-config hides 
/usr/share/emacs/site-lisp/html-helper-mode/hhm-config
/usr/share/emacs23/site-lisp/html-helper-mode/html-helper-mode hides 
/usr/share/emacs/site-lisp/html-helper-mode/html-helper-mode
/usr/share/emacs23/site-lisp/html-helper-mode/tempo hides 
/usr/share/emacs/site-lisp/html-helper-mode/tempo
/usr/share/emacs23/site-lisp/html-helper-mode/visual-basic-mode hides 
/usr/share/emacs/site-lisp/html-helper-mode/visual-basic-mode

Features:
(shadow sort mail-extr 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 emacsbug skeleton cua-rect sh-script executable
novice ruby-mode disp-table whitespace python-21 python comint add-log
log-view wid-edit pcvs-util vc-annotate vc vc-dispatcher rect make-mode
html-mode jsp-html-helper-mode asp-html-helper-mode php-html-helper-mode
html-helper-mode warnings advice help-fns advice-preload tempo cl cl-19
cus-start cus-load js byte-opt bytecomp byte-compile json etags ring
imenu newcomment multi-isearch cc-mode cc-fonts cc-menus cc-cmds
cc-styles cc-align cc-engine cc-vars cc-defs help-mode view kmacro
face-remap vc-git markdown-mode regexp-opt noutline outline easymenu
cua-base server goto-addr thingatpt emacs-goodies-el
emacs-goodies-custom emacs-goodies-loaddefs easy-mmode 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)