undo-start: No undo information in this buffer

[Andrew M. Scott]

My symptoms seem similar to David L's bug report on Sept 12, 2006:
http://lists.gnu.org/archive/html/emacs-pretest-bug/2006-09/msg00157.html

I have (but have not included, see explanation below) a reproducible
testcase for this issue; I get the same results on Sept 13th and Sept
19th CVS Emacs builds on two different gnu/linux systems. 

This testcase is really a scratchpad/diary of code fragments and notes
I've pasted from many sources (and probably encodings). The gzip'd
file is ~980KB and ~81K lines of ascii, and I don't really want to
post it due to its contents. Also, our NNTP posting host is offline.

Is there someone to whom I can email the testcase who has a GPG key? 
Thanks.


After gunzipping the testcase, say to ~/start-undo.txt

% emacs -Q &
C-x C-f ~/start-undo.txt
Answer y to the "safe-variables list"
Select region beginning with the first character in th file through
the end of the line marked
--- Select from top of file through this line ---
M-w (kill-ring-save)
C-n (next-line)
C-y (yank)
C-x u (advertised-undo)
Minibuffer says "No undo information in this buffer"
*Messages* says "undo-start: No undo information in this buffer"

Andy Scott

In GNU Emacs 22.0.50.1 (x86_64-unknown-linux-gnu, X toolkit)
 of 2006-09-19 on chlr6708
X server distributor `The XFree86 Project, Inc', version 11.0.40201000
configured using `configure '--prefix=/stor/garray/linux_2.6.5_x86-64' 
'--x-includes=/usr/intel/pkgs/X11/R7.0/include' 
'--x-libraries=/usr/intel/pkgs/X11/R7.0/lib' 'CC=gcc' 'CFLAGS=-O2 
-I/usr/intel/pkgs/X11/R7.0/include -L/usr/intel/pkgs/X11/R7.0/lib 
-I/usr/intel/pkgs/zlib/1.2.3/include -L/usr/intel/pkgs/zlib/1.2.3/lib  
-I/usr/intel/pkgs/ncurses/5.5/include -L/usr/intel/pkgs/ncurses/5.5/lib 
-I/usr/intel/pkgs/libungif/4.1.4/include -L/usr/intel/pkgs/libungif/4.1.4/lib 
-I/usr/intel/pkgs/libpng/1.2.12/include -L/usr/intel/pkgs/libpng/1.2.12/lib 
-I/usr/intel/pkgs/jpeg/6b-2/include -L/usr/intel/pkgs/jpeg/6b-2/lib 
-I/usr/intel/pkgs/libglade/2.5.1/include -L/usr/intel/pkgs/libglade/2.5.1/lib64 
-I/usr/intel/pkgs/gtk+/2.8.17/include -L/usr/intel/pkgs/gtk+/2.8.17/lib64 
-I/usr/intel/pkgs/lesstif/0.94.4/include -L/usr/intel/pkgs/lesstif/0.94.4/lib' 
'LDFLAGS=-L/usr/intel/pkgs/X11/R7.0/lib -L/usr/intel/pkgs/zlib/1.2.3/lib 
-L/usr/intel/pkgs/ncurses/5.5/lib -L/usr/intel/pkgs/libungif/4.1.4/!
 lib -L/usr/intel/pkgs/libpng/1.2.12/lib -L/usr/intel/pkgs/jpeg/6b-2/lib 
-Wl,-rpath=/usr/intel/pkgs/X11/R7.0/lib:/usr/intel/pkgs/zlib/1.2.3/lib:/usr/intel/pkgs/ncurses/5.5/lib:/usr/intel/pkgs/libungif/4.1.4/lib:/usr/intel/pkgs/libpng/1.2.12/lib:/usr/intel/pkgs/jpeg/6b-2/lib:/usr/intel/pkgs/libglade/2.5.1/lib64:/usr/intel/pkgs/gtk+/2.8.17/lib64:/usr/intel/pkgs/lesstif/0.94.4/lib''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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: Text

Minor modes in effect:
  tooltip-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
  auto-compression-mode: t
  line-number-mode: t