Subject: bug#2800: 23.0.91; Emacs has no response when
mini-buffer is too narrow to display information



Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@xxxxxxx mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

I opened two windows using C-x 3, and set the width of the right windows to a really small value (to be more precisely, it can display 50 characters per line). Then on the left line I run some command like M-x align<TAB>, as a result, the right window will be used as minibuffer and display auto-completion list. The bug is that, the list comes with all '\' on the right most and just cannot stop printing, and does not response to my control. In program 'top' I can see the CPU% of this emacs process is 100%.

I now can reproduce bug with the above operations. Under ArchLinux, in a bash terminal with screen 4.00.03.


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/share/emacs/23.0.91/etc/DEBUG for instructions.


In GNU Emacs 23.0.91.1 (i686-pc-linux-gnu, GTK+ Version 2.14.7)
 of 2009-03-19 on pupykin
configured using `configure  '--prefix=/usr' '--localstatedir=/var/lib/emacs' '--libexecdir=/usr/lib/emacs' '--with-xpm' '--with-jpeg' '--with-tiff' '--with-gif' '--with-png' '--with-x-toolkit=gtk' '--without-sound' '--enable-font-backend' '--with-freetype' '--with-xft' '--with-libotf' 'CFLAGS=-march=i686 -mtune=generic -O2 -pipe''

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.utf8
  value of $XMODIFIERS: @im=fcitx
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  diff-auto-refine-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  global-auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
ESC [ > 8 3 ; 4 0 0 0 3 ; 0 c C-x C-f C-g C-x 3 C-u
1 0 C-x } C-x C-g C-x < C-g C-x { C-x { C-x { C-x {
C-x { C-x { C-x { C-x { C-x { C-x { C-x { C-x { C-x
{ C-x { C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-g ESC x r e p o TAB TAB r t TAB TAB RET C-g ESC C-z
C-x C-f C-g ESC x r e p o TAB r t TAB RET

Recent messages:
Loading /usr/share/emacs/site-lisp/themes/color-theme-library.el (source)...done
Loading /home/wyx/emacs/my-utils.el (source)...done
Loading /home/wyx/emacs/muse-init.el (source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.
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