bug#8050: Gnus does not connect to my IMAP server any more

[Stefan Monnier]

Package: Emacs
Version: 24.0.50

When I start Gnus, it seems to try and connect to my IMAP server but
never asks for my password (which I don't save in authinfo.gpg).
In just ends up saying "done", but the *Server* buffer says "offline".
If I try to use O in the *Server* buffer, it switches instantly to
"opened" but if I try to do anything that involves the IMAP server,
I get (wrong-type-argument arrayp nil) errors because nnimap-object
is nil.

The *Message* buffer says:

auth-source-search: found 2 backends matching (:max 1 :host 
"news2.teksavvy.com" :port ("119" "nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo.gpg" netrc "~/.authinfo.gpg" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news2.teksavvy.com" :port 
("119" "nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo" netrc "~/.authinfo" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news2.teksavvy.com" :port 
("119" "nntp"))
Reading /home/monnier/var/newsrc.eld...
Checking new news...
Opening connection to imap.iro.umontreal.ca via tls...
Opening TLS connection to `imap.iro.umontreal.ca'...
Opening TLS connection with `gnutls-cli --insecure -p imaps 
imap.iro.umontreal.ca'...done
Opening TLS connection to `imap.iro.umontreal.ca'...done
auth-source-search: found 2 backends matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo.gpg" netrc "~/.authinfo.gpg" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo" netrc "~/.authinfo" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)
auth-source-search: found 2 backends matching (:max 1 :host "news.gmane.org" 
:port ("119" "nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo.gpg" netrc "~/.authinfo.gpg" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news.gmane.org" :port ("119" 
"nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo" netrc "~/.authinfo" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news.gmane.org" :port ("119" 
"nntp"))
Reading active file from eso via nntp...
Opening nntp server on eso...
auth-source-search: found 2 backends matching (:max 1 :host 
"news.eternal-september.org" :port ("119" "nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo.gpg" netrc "~/.authinfo.gpg" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news.eternal-september.org" 
:port ("119" "nntp"))
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo" netrc "~/.authinfo" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host "news.eternal-september.org" 
:port ("119" "nntp"))
Opening nntp server on eso...done
Reading active file from diro via nnimap...done
Reading active file via nndraft...done
Checking new news...done




In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2011-02-15 on pastel
Windowing system distributor `The X.Org Foundation', version 11.0.10707000
configured using `configure  '--enable-maintainer-mode' 'CFLAGS=-Wall 
-Wno-pointer-sign -DUSE_LISP_UNION_TYPE -DSYNC_INPUT -DENABLE_CHECKING 
-DXASSERTS -DFONTSET_DEBUG -g -O1 -I/usr/include/GNUstep' 
'--with-x-toolkit=lucid''

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: fr_CH.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  gnus-undo-mode: t
  electric-pair-mode: t
  electric-indent-mode: t
  url-handler-mode: t
  global-reveal-mode: t
  reveal-mode: t
  auto-insert-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
^ <down> <down> <down> <down> O <up> C <up> O <up> 
C-x 5 b * M e <tab> <return> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> q <switch-frame> 
<switch-frame> <switch-frame> <switch-frame> <switch-frame> 
<switch-frame> M-x r e p - e m - b u <tab> <return
>

Recent messages:
Reading active file from diro via nnimap...done
Reading active file via nndraft...done
Checking new news...done
Opening connection to imap.iro.umontreal.ca via tls...
Opening TLS connection to `imap.iro.umontreal.ca'...
Opening TLS connection with `gnutls-cli --insecure -p imaps 
imap.iro.umontreal.ca'...done
Opening TLS connection to `imap.iro.umontreal.ca'...done
auth-source-search: found 2 backends matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo.gpg" netrc "~/.authinfo.gpg" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)
auth-source-search: found 0 results (max 1/1) in [object auth-source-backend 
"~/.authinfo" netrc "~/.authinfo" t t t auth-source-netrc-create 
auth-source-netrc-search] matching (:max 1 :host ("diro" 
"imap.iro.umontreal.ca") :port ("143" "993" "imap" "imaps") :create nil)

Load-path shadows:
/usr/share/emacs23/site-lisp/bbdb/bbdb hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb
/usr/share/emacs23/site-lisp/bbdb/bbdb-mhe hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-mhe
/usr/share/emacs23/site-lisp/bbdb/bbdb-gnus hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-gnus
/usr/share/emacs23/site-lisp/bbdb/bbdb-migrate hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-migrate
/usr/share/emacs23/site-lisp/bbdb/bbdb-sc hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-sc
/usr/share/emacs23/site-lisp/bbdb/bbdb-snarf hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-snarf
/usr/share/emacs23/site-lisp/bbdb/bbdb-w3 hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-w3
/usr/share/emacs23/site-lisp/bbdb/bbdb-gui hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-gui
/usr/share/emacs23/site-lisp/bbdb/bbdb-print hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-print
/usr/share/emacs23/site-lisp/bbdb/bbdb-rmail hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-rmail
/usr/share/emacs23/site-lisp/bbdb/bbdb-vm hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-vm
/usr/share/emacs23/site-lisp/bbdb/bbdb-ftp hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-ftp
/usr/share/emacs23/site-lisp/bbdb/bbdb-merge hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-merge
/usr/share/emacs23/site-lisp/bbdb/bbdb-whois hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-whois
/usr/share/emacs23/site-lisp/bbdb/bbdb-com hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-com
/usr/share/emacs23/site-lisp/bbdb/bbdb-hooks hides 
/usr/share/emacs/site-lisp/bbdb/lisp/bbdb-hooks

Features:
(shadow sort mail-extr emacsbug url-util nnfolder nndraft nnmh nnagent
nnml nnimap parse-time utf7 gnus-agent gnus-srvr gnus-score score-mode
nnvirtual gnus-msg gnus-art mm-uu mml2015 epg-config mm-view mml-smime
smime dig mailcap nntp proto-stream starttls tls gnus-cache nnir
gnus-sum macroexp nnoo gnus-group gnus-undo nnmail mail-source
format-spec server gnus-start gnus-spec gnus-int gnus-range message
sendmail rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse
rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev gmm-utils mailheader
gnus-win gnus gnus-ems nnheader mail-utils wid-edit noutline outline
easy-mmode flyspell ispell eldoc checkdoc regexp-opt thingatpt help-mode
easymenu view prog-mode electric url-handlers url-parse auth-source
warnings eieio byte-opt bytecomp byte-compile assoc netrc gnus-util
time-date password-cache url-vars mm-util mail-prsvr reveal autoinsert
uniquify advice help-fns advice-preload savehist minibuf-eldef cl
cl-loaddefs proof-site proof-autoloads pg-vars bbdb-autoloads agda2
tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar
dnd fontset image fringe lisp-mode register page newcomment menu-bar
rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax
font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan
thai tai-viet lao korean japanese hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces
cus-face files text-properties overlay md5 base64 format env code-pages
mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting system-font-setting
font-render-setting x-toolkit x multi-tty emacs)