Dear Handa San,

Now, I meet the same thing that I reported to you two days ago.  I debug 
it under gdb according to your guidance.  I describe the problem as 
follows and sent you a sample file as well as the corresponding debug 
informations:

-------------------------------------------------------
The description of my problem:

First, the build parameters of Emacs Unicode 2 is as follows:

===============
% cd EMACS_BUILD_TREE
% ./configure --prefix=/usr \
--x-includes=/usr/include/X11 --x-libraries=/usr/lib/X11 \
--enable-font-backend --enable-asserts \
--enable-locallisppath=/usr/share/emacs/site-lisp:/etc/emacs-snapshot/site-start.d 
\
--enable-largefile --with-pop --with-sound \
--with-x=yes --with-x-toolkit=gtk --with-toolkit-scroll-bars \
--with-xpm --with-jpeg --with-tiff --with-gif --with-png \
--with-freetype  --with-xft --with-xim \
--with-kerberos --with-kerberos5 --with-hesiod
% make bootstrap
===============

The following is my problem, may it be clear for you to understand:

In my sample file *sample-file.mp*, which is metapost file.  I open it·
in emacs by using the meta-mode to edit it.  The parameters I used to open 
Emacs is: *--enable-font-backend -fn "Dejavu Sans Mono-14"*.

When I open the file, then I use the *M-%* and *!* to replace all the 
*-* (the character is in Half shape) into *－* (the character is in Full 
shape) or vice versa and do this thing again and again.  I mean, if the 
there have *-* (half shape) in my file, I replace all of them into *－* 
(full shape) and then do the reverse replacements again and again; if 
there have *－* (full shape) in my file, I replace all of them into *-* 
(half shape) and then do the reverse replacements again and again.  Then 
I find that after some circles, the Emacs will be aborting 
abnormally.  The debug-results-gdb is my debug informations under 
gdb.
-----------------------------------------------------

P.S.  When I use the command *bt full*, I find so many debug 
informations, can I use a command to pipe these informations into a 
file.

Thanks in advance.
---
Hongyi Zhao (赵弘毅)
GnuPG DSA: 0xD108493B

老子道德经：第二十八章
知其白，守其黑，为天下式。
为天下式，常德不忒，复归于无极。