bug#20363: 25.0.50; image.c Side-effect: Bombs unnecessarily on console

bug#20363: 25.0.50; image.c Side-effect: Bombs unnecessarily on console

[raman]

I run Emacs both on the Linux  Console  and under X.

I also like reading xkcd via package xkcd.

Package xkcd  calls function image-multi-frame-p 
which eventually calls through to the C layer and produces this
backtrace on the console; works fine under X.
Debugger entered--Lisp error: (error "Window system frame should be used")
  image-metadata((image :type png :file "~/.emacs.d/xkcd/1513.png"))
  image-multi-frame-p((image :type png :file "~/.emacs.d/xkcd/1513.png"))
  xkcd-insert-image("~/.emacs.d/xkcd/1513.png" 1513)
  #[(num) "\306 \210\307\310!\210\311\310!\210\312 \210\313.\314 \210	.	\315=\203\x1f.\316\202#.\317\320	\".\321\v	\".\322\f!.\323\324.\"A..\323\301.\"A.\323\325.\"A..\313\211.\x1f. \326\327!\210\330..	\". \317\331	..#\211.\x1f\332\261.\210\333. 	\"\210\n\315=\203m.	.\334	\f\"\210\323\335.\"A.!\326.\x1f!.	\207" [buffer-read-only num xkcd-cur url out json-assoc xkcd-update-latest get-buffer-create "*xkcd*" switch-to-buffer xkcd-mode nil erase-buffer 0 "http://xkcd.com/info.0.json" format "http://xkcd.com/%d/info.0.json" xkcd-get-json json-read-from-string assoc img safe_title message "Getting comic..." xkcd-download "%d: %s" "\n" xkcd-insert-image xkcd-cache-json alt safe-title title file xkcd-alt] 5 ("/home/raman/.emacs.d/elpa/xkcd-20140505.511/xkcd.elc" . 5668) "nEnter comic number: "](0)
  ad-Advice-xkcd-get(#[(num) "\306 \210\307\310!\210\311\310!\210\312 \210\313.\314 \210	.	\315=\203\x1f.\316\202#.\317\320	\".\321\v	\".\322\f!.\323\324.\"A..\323\301.\"A.\323\325.\"A..\313\211.\x1f. \326\327!\210\330..	\". \317\331	..#\211.\x1f\332\261.\210\333. 	\"\210\n\315=\203m.	.\334	\f\"\210\323\335.\"A.!\326.\x1f!.	\207" [buffer-read-only num xkcd-cur url out json-assoc xkcd-update-latest get-buffer-create "*xkcd*" switch-to-buffer xkcd-mode nil erase-buffer 0 "http://xkcd.com/info.0.json" format "http://xkcd.com/%d/info.0.json" xkcd-get-json json-read-from-string assoc img safe_title message "Getting comic..." xkcd-download "%d: %s" "\n" xkcd-insert-image xkcd-cache-json alt safe-title title file xkcd-alt] 5 ("/home/raman/.emacs.d/elpa/xkcd-20140505.511/xkcd.elc" . 5668) "nEnter comic number:
  "] 0)
  apply(ad-Advice-xkcd-get #[(num) "\306 \210\307\310!\210\311\310!\210\312 \210\313.\314 \210	.	\315=\203\x1f.\316\202#.\317\320	\".\321\v	\".\322\f!.\323\324.\"A..\323\301.\"A.\323\325.\"A..\313\211.\x1f. \326\327!\210\330..	\". \317\331	..#\211.\x1f\332\261.\210\333. 	\"\210\n\315=\203m.	.\334	\f\"\210\323\335.\"A.!\326.\x1f!.	\207" [buffer-read-only num xkcd-cur url out json-assoc xkcd-update-latest get-buffer-create "*xkcd*" switch-to-buffer xkcd-mode nil erase-buffer 0 "http://xkcd.com/info.0.json" format "http://xkcd.com/%d/info.0.json" xkcd-get-json json-read-from-string assoc img safe_title message "Getting comic..." xkcd-download "%d: %s" "\n" xkcd-insert-image xkcd-cache-json alt safe-title title file xkcd-alt] 5 ("/home/raman/.emacs.d/elpa/xkcd-20140505.511/xkcd.elc" . 5668) "nEnter comic n
 umber: "] 0)
  xkcd-get(0)
  xkcd()
  funcall-interactively(xkcd)
  #<subr call-interactively>(xkcd record nil)
  ad-Advice-call-interactively(#<subr call-interactively> xkcd record nil)
  apply(ad-Advice-call-interactively #<subr call-interactively> (xkcd record nil))
  call-interactively(xkcd record nil)
  command-execute(xkcd record)
  execute-extended-command(nil "xkcd" "xkcd")
  funcall-interactively(execute-extended-command nil "xkcd" "xkcd")
  #<subr call-interactively>(execute-extended-command nil nil)
  ad-Advice-call-interactively(#<subr call-interactively> execute-extended-command nil nil)
  apply(ad-Advice-call-interactively #<subr call-interactively> (execute-extended-command nil nil))
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)

In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2015-04-17 on raman-glaptop
Repository revision: cd17be2f7233df04b84982b572eb31d855399c24
Windowing system distributor `The X.Org Foundation', version 11.0.11501000
System Description:	Ubuntu 14.04 LTS

Configured using:
 `configure --enable-silent-rules --with-x-toolkit=lucid
 --without-compress-install'

Configured features:
XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF
GSETTINGS NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT
ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: C

Minor modes in effect:
  diff-auto-refine-mode: t
  recentf-mode: t
  gpm-mouse-mode: t
  ido-everywhere: t
  jabber-activity-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-networks-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  dynamic-completion-mode: t
  dired-omit-mode: t
  shell-dirtrack-mode: t
  voice-lock-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-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
  abbrev-mode: t

Recent messages:
Contacting host: xkcd.com:80
Getting comic...
Entering debugger...
Marked buffer containing 22 lines
Copied 22 lines to register a
Back to top level
Debug on Error disabled globally
Quit  [2 times]
<space> is undefined
End of buffer  [2 times]

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/home/raman/.emacs.d/elpa/org-20150413/ob-css hides /usr/local/share/emacs/25.0.50/lisp/org/ob-css
/home/raman/.emacs.d/elpa/org-20150413/ob-C hides /usr/local/share/emacs/25.0.50/lisp/org/ob-C
/home/raman/.emacs.d/elpa/org-20150413/org-install hides /usr/local/share/emacs/25.0.50/lisp/org/org-install
/home/raman/.emacs.d/elpa/org-20150413/ob-matlab hides /usr/local/share/emacs/25.0.50/lisp/org/ob-matlab
/home/raman/.emacs.d/elpa/org-20150413/org-table hides /usr/local/share/emacs/25.0.50/lisp/org/org-table
/home/raman/.emacs.d/elpa/emms-20150329.1945/tq hides /usr/local/share/emacs/25.0.50/lisp/emacs-lisp/tq

Features:
(shadow emacsbug vm-reply vm-rfaddons vm-menu vm-window vm-toolbar
vm-folder vm-mime vm-undo vm-mouse vm-page vm-minibuf vm-message vm-misc
vm-macro vc vc-dispatcher vc-git emacspeak-diff-mode diff-mode
pcmpl-unix debug shr-color color emacspeak-xkcd json-mode json-reformat
json-snatcher rx js moz emacspeak-imenu imenu emacspeak-c cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs mm-archive xkcd url-file url-dired emacspeak-wizards
emacspeak-eterm term ehelp emacspeak-texinfo texinfo emacspeak-table-ui
emacspeak-table emacspeak-find-dired find-dired lisp-mnt recentf
tree-widget misearch multi-isearch ucs-normalize gnutls network-stream
nsm url-http url-gw url-cache url-auth emacspeak-eww eww mm-url
url-queue emacspeak-websearch t-mouse cal-china lunar cal-bahai
cal-islam cal-hebrew holidays hol-loaddefs cal-move server bbdb-vm
vm-summary vm-motion emacspeak-vm vm vm-autoload bbdb-snarf mail-extr
bbdb-com emacspeak-bbdb bbdb timezone emacs-startup emacspeak-ido ido
emacspeak-m-player emms-info-libtag emms-bookmarks emms-cue
emms-mode-line-icon emms-browser sort emms-playlist-sort
emms-last-played emms-player-xine emms-player-mpd tq emms-playing-time
emms-lyrics emms-url emms-streams emms-tag-editor emms-mark
emms-mode-line emms-cache emms-info-ogginfo emms-info-mp3info emms-info
later-do emms-playlist-mode emms-player-vlc emms-player-mplayer
emms-player-simple emms-source-playlist emms-source-file locate
emms-setup emacspeak-emms emms emms-compat ffap fff-rfc fff tramp
tramp-compat tramp-loaddefs trampver emacspeak-twittering
twittering-mode epa epg ssl emacspeak-jabber jabber jabber-libnotify
jabber-awesome jabber-osd jabber-wmii jabber-xmessage jabber-festival
jabber-sawfish jabber-ratpoison jabber-screen jabber-socks5
jabber-ft-server jabber-si-server jabber-ft-client jabber-ft-common
jabber-si-client jabber-si-common jabber-feature-neg jabber-truncate
jabber-time jabber-autoaway jabber-vcard-avatars jabber-chatstates
jabber-events jabber-vcard jabber-avatar jabber-activity jabber-watch
jabber-modeline jabber-ahc-presence jabber-ahc jabber-version
jabber-ourversion jabber-muc-nick-completion hippie-exp jabber-browse
jabber-search jabber-register jabber-roster jabber-presence jabber-muc
jabber-muc-nick-coloring assoc hexrgb jabber-newdisco jabber-widget
jabber-disco jabber-chat jabber-history jabber-chatbuffer jabber-alert
jabber-iq jabber-core jabber-console emacspeak-sgml-mode sgml-mode ewoc
jabber-keymap jabber-sasl sasl sasl-anonymous sasl-login sasl-plain fsm
jabber-logon jabber-conn srv dns starttls jabber-xml jabber-menu
jabber-autoloads jabber-util erc-list erc-menu erc-join erc-ring
erc-networks erc-pcomplete erc-track erc-match erc-button erc-fill
erc-stamp erc-netsplit emacspeak-erc erc-goodies erc erc-backend
erc-compat pp org-location-google-maps org-agenda google-maps
google-maps-static google-maps-geocode google-maps-base emacspeak-org
org org-macro org-footnote org-pcomplete org-list org-faces org-entities
emacspeak-outline foldout noutline outline easy-mmode org-version
ob-emacs-lisp ob ob-tangle ob-ref ob-lob ob-table ob-exp org-src ob-keys
ob-comint ob-core ob-eval org-compat org-macs org-loaddefs
emacspeak-find-func find-func emacspeak-calendar appt diary-lib
diary-loaddefs solar cal-dst cal-menu calendar cal-loaddefs
emacspeak-mspools mspools emacspeak-tcl tcl emacspeak-elfeed elfeed-show
shr dom subr-x elfeed-db elfeed-lib avl-tree elfeed-search elfeed
xml-query emacspeak-folding folding emacspeak-reftex reftex reftex-vars
w3-prepare w3 w3-menu w3-emulate w3-auto w3-parse w3-fast-parse
emacspeak-w3 emacspeak-google html2text gmaps emacspeak-we
emacspeak-xslt w3-display w3-mouse w3-imap url-handlers w3-widget
w3-vars w3-keymap w3-cus css font disp-table devices ange-ftp w3-cfg
w3-compat emacspeak-sigbegone sigbegone emacspeak-custom cus-edit
cus-start gnus-prepare gnus-demon nntp emacspeak-gnus gm-nnir nnir
gnus-art mm-uu mml2015 mm-view mml-smime smime dig gnus-sum gnus-group
gnus-undo gnus-start gnus-cloud nnimap nnmail mail-source tls utf7 netrc
nnoo parse-time gnus-spec gnus-int gnus-range emacspeak-message message
format-spec rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse
rfc2231 mailabbrev gmm-utils mailheader gnus-win emacspeak-hide gnus
gnus-ems nnheader gm-smtp smtpmail sendmail rfc2047 rfc2045 ietf-drums
mail-utils vm-autoloads vm-vars vm-version my-functions emacspeak-auctex
tex-site emacs-droid-autoloads emacs-droid finder-inf go-mode-autoloads
ipython-autoloads levenshtein-autoloads logito-autoloads
memory-usage-autoloads register-list-autoloads shell-here-autoloads info
ssh-autoloads wget-autoloads emacspeak-package package epg-config
completion dired-aux dired-x emacspeak-dired emacspeak-desktop desktop
frameset dired emacspeak-aumix emacspeak-forms forms forms-mode
emacspeak-setup emacspeak-dbus nm dbus xml emacspeak-webspace
emacspeak-feeds gf gweb emacspeak-alsaplayer emacspeak-amark derived
emacspeak-advice shell pcomplete comint ring emacspeak-ansi-color
ansi-color emacspeak-replace emacspeak-redefine emacspeak-personality
emacspeak emacspeak-widget warnings emacspeak-webutils browse-url gfeeds
g-utils json url url-proxy url-privacy url-expand url-methods
url-history url-cookie url-domsuf url-util url-parse auth-source eieio
eieio-core cl-generic gnus-util mm-util mail-prsvr password-cache
url-vars mailcap emacspeak-kmacro emacspeak-facemenu emacspeak-buff-menu
g-cus-load cus-load emacspeak-info emacspeak-fix-interactive
emacspeak-preamble emacspeak-keymap edmacro kmacro wid-edit
emacspeak-speak time-date emacspeak-pronounce thingatpt dtk-speak
flite-voices dtk-interp voice-setup emacspeak-sounds dectalk-voices
espeak-voices mac-voices multispeech-voices outloud-voices dtk-unicode
descr-text help-mode easymenu dtk-css-speech acss-structure
emacspeak-load-path byte-opt bytecomp byte-compile cl-extra seq cconv
advice help-fns cl-macs cl gv cl-loaddefs pcase cl-lib mule-util tooltip
eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win
x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list
newcomment elisp-mode lisp-mode prog-mode register page menu-bar
rfn-eshadow timer select scroll-bar 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 minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
gfilenotify dynamic-setting system-font-setting font-render-setting
x-toolkit x multi-tty emacs)

Memory information:
((conses 16 1123098 97712)
 (symbols 48 77018 6)
 (miscs 40 230 910)
 (strings 32 262392 27489)
 (string-bytes 1 9019632)
 (vectors 16 92917)
 (vector-slots 8 1579802 35748)
 (floats 8 1519 405)
 (intervals 56 17102 741)
 (buffers 976 39)
 (heap 1024 106197 2904))

-- 

bug#20363: 25.0.50; image.c Side-effect: Bombs unnecessarily on console

[Lars Ingebrigtsen]

raman <raman@google.com> writes:

> I run Emacs both on the Linux  Console  and under X.
>
> I also like reading xkcd via package xkcd.
>
> Package xkcd  calls function image-multi-frame-p 
> which eventually calls through to the C layer and produces this
> backtrace on the console; works fine under X.
> Debugger entered--Lisp error: (error "Window system frame should be used")
>   image-metadata((image :type png :file "~/.emacs.d/xkcd/1513.png"))
>   image-multi-frame-p((image :type png :file "~/.emacs.d/xkcd/1513.png"))
>   xkcd-insert-image("~/.emacs.d/xkcd/1513.png" 1513)

(I'm going through old bug reports that unfortunately have not received
any responses yet.)

This looks like a bug in the xkcd package, and you should take it up
with the maintainers of that package.  It should check whether it's on a
graphical display before it calls those functions.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no