Stack overflow in regexp matcher when opening file

[Kim F. Storm]

Create two (huge) files like this:

emacs -q

C-x C-f file1.txt RET RET C-p ESC 3 4 0 0 0 0 x C-x C-s

C-x C-f file2.txt RET RET C-p ESC 3 4 0 0 0 0 C-q 2 1 2 RET C-x C-s

C-x C-c to exit

Restart emacs:

emacs -q

C-x C-f file1.txt RET

C-x C-f file2.txt RET

Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
  looking-at("\\(?:<\\?xml\\s +[^>]*>\\)?\\s 
*<\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\(?:!DOCTYPE\\s +[^>]*>\\s *<\\s 
*\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\)?[Hh][Tt][Mm][Ll]")
  #[(re dummy) "Á!‡" [re looking-at] 2]("\\(?:<\\?xml\\s +[^>]*>\\)?\\s 
*<\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\(?:!DOCTYPE\\s +[^>]*>\\s *<\\s 
*\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\)?[Hh][Tt][Mm][Ll]" nil)
  assoc-default(nil (("\\(?:<\\?xml\\s +[^>]*>\\)?\\s 
*<\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\(?:!DOCTYPE\\s +[^>]*>\\s *<\\s 
*\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s *<\\)*\\)?[Hh][Tt][Mm][Ll]" . html-mode) 
("<\\?xml " . xml-mode) ("\\s *<\\(?:!--\\(?:[^-]\\|-[^-]\\)*-->\\s 
*<\\)*!DOCTYPE " . sgml-mode) ("%![^V]" . ps-mode) ("# xmcd " . 
conf-unix-mode)) #[(re dummy) "Á!‡" [re looking-at] 2])
  set-auto-mode()
  normal-mode(t)
  after-find-file(nil t)
  find-file-noselect-1(#<buffer file2.txt> "~/fsf/latest/file2.txt" nil nil 
"~/fsf/latest/file2.txt" (2320055 774))
  find-file-noselect("~/fsf/latest/file2.txt" nil nil t)
  find-file("~/fsf/latest/file2.txt" t)
  call-interactively(find-file)

Very oddly, it doesn't happen if I load file2.txt before file1.txt,
so is there some form of leak in the "regexp matcher stack" ???


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2006-02-02 on kfs-l.imdomain.dk
X server distributor `The XFree86 Project, Inc', version 11.0.40300000
configured using `configure  'CFLAGS=-g -O0''

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
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  cua-mode: t
  display-time-mode: t
  tooltip-mode: t
  auto-compression-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> 
<S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> 
<S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> 
<S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> 
<S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> <S-up> 
<S-up> <S-up> <S-up> C-x <timeout> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<menu-bar> <help-menu> <report-emacs-bug> m <backspace> 
r e g e x p SPC m a t c h e r SPC s t a c k SPC o v 
e r f l o w <return> y C-g C-x k <return> y <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>

Recent messages:
Loading subst-jis...done
Auto-saving...done
Mark set [2 times]
Loading emacsbug...done
Buffer has unsaved changes; reinitialize it and discard them? (y or n) 
sendmail-user-agent-compose: Message aborted
Buffer has unsaved changes; reinitialize it and discard them? (y or n) 
Disconnect buffer from visited file? (y or n) 
Quit
Buffer *mail* modified; kill anyway? (y or n) 


--
Kim F. Storm <address@hidden> http://www.cua.dk