[Unicode2] Crash

[Leo]

I just met a few crashes and took down one backtrace. See the
attached. The crash happens when I move mouse over a link in ERC.

crash.log
Description: crash.log

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/local/packages/emacs23/share/emacs/23.0.0/etc/DEBUG for instructions.


In GNU Emacs 23.0.0.18 (i686-pc-linux-gnu, X toolkit)
 of 2007-04-29 on Fedora6
Windowing system distributor `The X.Org Foundation', version 11.0.70101000
configured using `configure  '--prefix=/usr/local/packages/emacs23' 
'--with-kerberos5' '--enable-locallisppath=/usr/local/share/emacs/site-lisp' 
'--without-toolkit-scroll-bars' '--with-xft' '--enable-font-backend' 
'--with-x-toolkit=yes''

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_GB.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-topic-mode: t
  gnus-undo-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  show-paren-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  display-time-mode: t
  shell-dirtrack-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
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> C-y C-y <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <return> <up> C-y <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> C-y <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y 
C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y 
C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y 
C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y C-y 
C-y C-y <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> C-x 
C-s C-x C-j C-x k <return> C-x k <return> M-x g n u 
s <return> <f7> v <return> C-x [ <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> C-x k <return> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> L <down> 
<down> <down> <down> <down> <up> <up> <up> <up> <up> 
<up> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <up> 
<up> <up> <up> <up> <up> <up> M-x r e p o <tab> o <backspace> 
r <tab> <return>

Recent messages:
Checking new news...
Opening nntp server on nntp-serv.cam.ac.uk...done
Checking new news...done
Loading gnus-topic...done
Open /home/leo/crash.log
widget-before-change: Text is read-only: "Attempt to change text outside 
editable field"
Making completion list...
Loading eieio-opt...done
Loading emacsbug...done
Loading skeleton...done