23.0.50; TLS infinite loop

[Leo <sdl.web@gmail.com>]

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@gnu.org mailing list.

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

This bug takes Gnus and a Gmail account to reproduce.

I am using Gnus 5.110007 from CVS (2007-09-10) and tls.el is from Emacs.

You need to use openssl to see this problem. So first,
(setq tls-program '("openssl s_client -connect %h:%p -no_ssl2"))

(setq mail-sources
      '((pop :server "pop.gmail.com"
	     :port 995
	     :user "sdl.web@googlemail.com"
	     :password "test")
        ))

Make sure that there is at least one new mail in that account.

Now try to retrieve new mail in "misc.mail" by "M-g". You can see that a
message like "Retrieving message 1 of 1 from pop.gmail.com..." will
display in the echo area for good and Emacs is frozen until you type
"C-g" to stop it.

I tried to edebug `pop3-retr' and found out it hangs at
(pop3-read-response process) at the beginning of the function.

[BTW, using gnutls is even more problematic. I have reported but no one
is fixing it.
http://news.gmane.org/group/gmane.emacs.gnus.user/thread=8526]

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/emacs/share/emacs/23.0.50/etc/DEBUG for instructions.


In GNU Emacs 23.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.10.14, multi-tty)
 of 2007-09-01 on Fedora
configured using `configure  '--prefix=/usr/local/packages/emacs' '--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
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  erc-spelling-mode: t
  erc-page-mode: t
  erc-menu-mode: t
  erc-services-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-smiley-mode: t
  erc-readonly-mode: t
  erc-scrolltobottom-mode: t
  gnus-topic-mode: t
  gnus-undo-mode: t
  auto-insert-mode: t
  dired-omit-mode: t
  recentf-mode: t
  icomplete-mode: t
  show-paren-mode: t
  savehist-mode: t
  xterm-mouse-mode: t
  delete-selection-mode: t
  global-auto-revert-mode: t
  display-time-mode: t
  minibuffer-indicate-depth-mode: t
  partial-completion-mode: t
  which-function-mode: t
  shell-dirtrack-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
B ESC O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC 
O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC O A 
ESC O A ESC O A ESC O A ESC O A ESC O A ESC O A ESC 
O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC O B 
ESC O B ESC O B ESC O B ESC O B ESC O B ESC O B ESC 
O B ESC O B ESC O B ESC O B C-x o SPC SPC SPC SPC SPC 
SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC 
SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC 
SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC SPC 
ESC O A ESC O A RET q g q C-x b RET ESC O A ESC O A 
ESC O B ESC O B ESC O B ESC C-x C-x b RET g ESC O A 
ESC O A ESC O A ESC O B RET ESC [ M a d ; ESC [ M a 
d ; ESC [ M a d ; ESC [ M a d ; ESC [ M a d ; ESC [ 
M a d ; ESC [ M a d ; ESC [ M a d ; ESC [ M a d ; ESC 
[ M a d ; ESC [ M SPC 7 / ESC [ M # 7 / ESC u q n n 
n n ESC x r e p o r TAB b u DEL DEL e m a TAB b TAB 
RET