bug#8019: 23.2; DBUS notification problem

[nyc4bos]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your report will be posted to the bug-gnu-emacs@gnu.org mailing list
and the gnu.emacs.bug news group, and at http://debbugs.gnu.org.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug.  If you can, give
a recipe starting from `emacs -Q':

When trying to use a dbus-call-method to org.freedesktop.Notifications,
I am getting a backtrace (see below).

The notification daemon is running and DBUS appears to be connected:

(dbus-get-unique-name :system)
":1.1"

(dbus-get-unique-name :session)
":1.0"


(dbus-list-known-names :session)
("org.freedesktop.DBus" "org.freedesktop.Notifications")

I also see in the echo area:

Signal from bus :session received: (org.freedesktop.Notifications  :1.2)

(I don't know whether or not this issue is also in Emacs 24.0.50.1
as Cygwin does not currently have a version available compiled from
the trunk)


 debug(error (dbus-error "Did not receive a reply. Possible causes include: the 
remote application did not send a reply, the message bus security policy 
blocked the reply, the reply timeout expired, or the network connection was 
broken."))
  dbus-call-method(:session "org.freedesktop.Notifications" 
"/org/freedesktop/Notifications" "org.freedesktop.Notifications" "Notify" "GNU 
Emacs" 0 "" "Notification summary" "This is a test notification, raised from 
GNU Emacs 23.2.1 (i686-pc-cygwin, GTK+ Version 2.20.1)\n of 2010-10-01 on 
laptop" (:array) (:array :signature "{sv}") :int32 -1)
  eval((dbus-call-method :session "org.freedesktop.Notifications" 
"/org/freedesktop/Notifications" "org.freedesktop.Notifications" "Notify" "GNU 
Emacs" 0 "" "Notification summary" (format "This is a test notification, raised 
from %s" (emacs-version)) (quote (:array)) (quote (:array :signature "{sv}")) 
:int32 -1))
  eval-last-sexp-1(t)
  eval-last-sexp(t)
  eval-print-last-sexp()
  call-interactively(eval-print-last-sexp nil nil)
  recursive-edit()
  byte-code("\306       
@\307=\203!\310\311\312\"\210\313\311!\211A@)\242\314=\203!\310\315\312\"\210\316
!\210\317 \210\320    
!\210\f\203d\321ed\"V\203Web\210\322\245y\210`db\210\322\245Zy\210`|\210)\323c\210eb\210\324\325\326
 \"\210\327\306!\210\324\330!\210\331\312\324\330!\210\212\332 \210+\331\207" 
[unread-command-char debugger-args x debugger-buffer noninteractive 
debugger-batch-max-lines -1 debug backtrace-debug 4 t backtrace-frame lambda 5 
pop-to-buffer debugger-mode debugger-setup-buffer count-lines 2 "...\n" message 
"%s" buffer-string kill-emacs "" nil recursive-edit middlestart 
buffer-read-only standard-output] 4)
  debug(error (dbus-error "Did not receive a reply. Possible causes include: 
the remote application did not send a reply, the message bus security policy 
blocked the reply, the reply timeout expired, or the network connection was 
broken."))
  dbus-call-method(:session "org.freedesktop.Notifications" 
"/org/freedesktop/Notifications" "org.freedesktop.Notifications" "Notify" "GNU 
Emacs" 0 "" "Notification summary" "This is a test notification, raised from 
GNU Emacs 23.2.1 (i686-pc-cygwin, GTK+ Version 2.20.1)\n of 2010-10-01 on 
laptop" (:array) (:array :signature "{sv}") :int32 -1)
  eval((dbus-call-method :session "org.freedesktop.Notifications" 
"/org/freedesktop/Notifications" "org.freedesktop.Notifications" "Notify" "GNU 
Emacs" 0 "" "Notification summary" (format "This is a test notification, raised 
from %s" (emacs-version)) (quote (:array)) (quote (:array :signature "{sv}")) 
:int32 -1))
  eval-last-sexp-1(t)
  eval-last-sexp(t)
  eval-print-last-sexp()
  call-interactively(eval-print-last-sexp nil nil)
  recursive-edit()


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'.


In GNU Emacs 23.2.1 (i686-pc-cygwin, GTK+ Version 2.20.1)
 of 2010-10-01 on laptop
Windowing system distributor `The Cygwin/X Project', version 11.0.10903000
configured using `configure  '--srcdir=/usr/src/emacs-23.2-3/src/emacs-23.2' 
'--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' 
'--libexecdir=/usr/lib' '--datadir=/usr/share' '--localstatedir=/var' 
'--sysconfdir=/etc' '--datarootdir=/usr/share' '--docdir=/usr/share/doc/emacs' 
'-C' 'CPPFLAGS=-I/usr/include/ncursesw' 'LDFLAGS=-L/usr/lib/ncursesw' 'CC=gcc' 
'CFLAGS=-g -O2 -pipe ' 'LIBS=''

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: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t


Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar> 
<help-menu> <send-emacs-bug-report>

Recent messages:
Signal from bus :session received: (org.freedesktop.Notifications  :1.2)
xd_retrieve_arg: s Message did not receive a reply (timeout by message bus)
xd_read_message: Event received: DBUS_MESSAGE_TYPE_ERROR 8 org.freedesktop.DBus 
(null) (null) (null) (Message did not receive a reply (timeout by message bus))
xd_retrieve_arg: s Message did not receive a reply (timeout by message bus)
xd_read_message: Event received: DBUS_MESSAGE_TYPE_ERROR 7 org.freedesktop.DBus 
(null) (null) (null) (Message did not receive a reply (timeout by message bus))
xd_retrieve_arg: s Message did not receive a reply (timeout by message bus)
xd_read_message: Event received: DBUS_MESSAGE_TYPE_ERROR 6 org.freedesktop.DBus 
(null) (null) (null) (Message did not receive a reply (timeout by message bus))
xd_retrieve_arg: s Message did not receive a reply (timeout by message bus)
xd_read_message: Event received: DBUS_MESSAGE_TYPE_ERROR 3 org.freedesktop.DBus 
(null) (null) (null) (Message did not receive a reply (timeout by message bus))

Load-path shadows:
None found.

Features:
(shadow sort mail-extr message sendmail regexp-opt ecomplete rfc822 mml
mml-sec password-cache mm-decode mm-bodies mm-encode mailcap mail-parse
rfc2231 rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util
netrc time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock
sha1 hex-util hashcash mail-utils emacsbug notify dbus xml cl cl-19
help-mode easymenu view debug warnings tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd font-setting tool-bar dnd fontset
image fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mldrag mouse jit-lock font-lock syntax facemenu 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 loaddefs button minibuffer faces cus-face files
text-properties overlay md5 base64 format env code-pages mule custom
widget hashtable-print-readable backquote make-network-process dbusbind
font-render-setting gtk x-toolkit x multi-tty emacs)