bug#22519: 25.1.50; Emacs gets stuck while doing incremental search forward

[Vincent Belaïche]

I was runnning emacs built with Mingw W64 under a debug session. It gets
stucks while doing an incremental search. I cannot even make a screen
copy of it.

Sans titre.png
Description: PNG image

This report is sent from another Emacs instance than that running the
debugger, and that which is stuck.




In GNU Emacs 25.1.50.1 (i686-w64-mingw32)
 of 2016-01-29 built on AIGLEROYAL
Repository revision: 487bd7aedf9bbbf0b939b653912253fbeb7d16b9
Windowing system distributor 'Microsoft Corp.', version 10.0.10586
Configured using:
 'configure --prefix=c:/Nos_Programmes/GNU/Emacs --without-jpeg
 --without-tiff --without-gif --without-png 'CFLAGS= -Og -g3 -L
 C:/Programmes/installation/emacs-install/libXpm-3.5.8/src' 'CPPFLAGS=
 -DFOR_MSW=1 -I
 C:/Programmes/installation/emacs-install/libXpm-3.5.8/include -I
 C:/Programmes/installation/emacs-install/libXpm-3.5.8/src -L
 C:/Programmes/installation/emacs-install/libXpm-3.5.8/src''

Configured features:
XPM SOUND NOTIFY ACL ZLIB TOOLKIT_SCROLL_BARS

Important settings:
  value of $LANG: FRA
  locale-coding-system: cp1252

Major mode: Fundamental

Minor modes in effect:
  recentf-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t

Recent messages:
Loading c:/Users/Vincent/AppData/Roaming/.emacs.d/etc/my_loaddefs.el 
(source)...done
Loading c:/Users/Vincent/AppData/Roaming/.emacs.d/recentf...done
Cleaning up the recentf list...done (0 removed)
Source file ‘c:/Nos_Programmes/GNU/emacs-extension/lisp/template.el’ newer than 
byte-compiled file
Loading c:/Programmes/installation/bbdb-git/bbdb/lisp/bbdb-loaddefs.el 
(source)...done
Loading c:/Users/Vincent/AppData/Roaming/.emacs.d/etc/my_autoloads.el 
(source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.
GNU Emacs 25.1.50.1 (i686-w64-mingw32) of 2016-01-29
Making completion list...
Loading dired-x...done

Load-path shadows:
c:/Programmes/installation/cedet-install/cedet-git/lisp/speedbar/loaddefs hides 
c:/Nos_Programmes/GNU/Emacs/share/emacs/25.1.50/lisp/loaddefs
c:/Programmes/installation/cedet-install/cedet-git/lisp/speedbar/loaddefs hides 
c:/Programmes/installation/cedet-install/cedet-git/lisp/cedet/loaddefs

Features:
(shadow sort bbdb-message mail-extr emacsbug message dired-x dired
dired-loaddefs format-spec rfc822 mml mml-sec epg epg-config gnus-util
mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils
mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util help-fns
help-mode mail-prsvr mail-utils edmacro kmacro skeleton calc-misc
calc-arith calc-ext calc calc-loaddefs calc-macs tex-mik preview-latex
tex-site auto-loads bbdb bbdb-site timezone bbdb-loaddefs template
w32utils cl-seq cl-macs cl gv recentf tree-widget wid-edit cl-loaddefs
pcase cl-lib easymenu load-path-to-cedet-svn time-date mule-util tooltip
eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel
dos-w32 ls-lisp disp-table w32-win w32-vars term/common-win tool-bar dnd
fontset image regexp-opt fringe tabulated-list newcomment elisp-mode
lisp-mode prog-mode register page menu-bar rfn-eshadow timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame
cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian
slovak czech european ethiopic indian cyrillic chinese charscript
case-table epa-hook jka-cmpr-hook help simple abbrev obarray minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote w32notify w32 multi-tty
make-network-process emacs)

Memory information:
((conses 8 137476 9420)
 (symbols 32 24807 0)
 (miscs 32 79 193)
 (strings 16 27702 4554)
 (string-bytes 1 819707)
 (vectors 8 15543)
 (vector-slots 4 460529 5876)
 (floats 8 169 27)
 (intervals 28 367 17)
 (buffers 520 13))