Package: emacs;
Reported by: Mikhail P <mikpom <at> fastmail.com>
Date: Tue, 15 Dec 2020 15:44:02 UTC
Severity: normal
Tags: fixed
Fixed in version 28.0.50
Done: Juri Linkov <juri <at> linkov.net>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Mikhail P <mikpom <at> fastmail.com> To: bug-gnu-emacs <at> gnu.org Subject: Viewing images over network using TRAMP (errors and unexpected prompts) Date: Tue, 15 Dec 2020 19:17:28 +0700
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Greetings. I am experiencing problems with viewing remote images. When resizing an image (e.g. by resizing Emacs frame) Emacs occasionally (approximately ~30% reproducibility) can prompt |... changed on disk; really edit the buffer?| which does not make a lot of sense. Regardless of my response Emacs outputs errors, lags for several seconds and only after that resizes the image. I am using currently most recent commit on TRAMP repo (69844458e33b5dcae53de249d9d82c59a5876055) containing some necessary fixes. Prior to these fixes Emacs could occasionally stall on resizing remote image and only interruption with C-g could help (or sometimes making Emacs completely unresponsive). Also attaching TRAMP debug file which I hope exposes the problem. As far as I could understand from my conversation with TRAMP devs while working on the fixes there are problems with functions called on idle-timer in image mode ... 😬 Below as a quotation is what |report-emacs-bug| has generated. To make this report I ran emacs as follows: |emacs -Q --eval="(progn (add-to-list 'load-path \"/home/mikpom/Dropbox/.config/emacs-plugins/tramp\") (require 'tramp) (setq tramp-verbose 10) (setq tramp-use-ssh-controlmaster-options nil) (setq tramp-debug-to-file t))" /ssh:horsehop:/storage1/mikpom/wizard_devel/CNV/figs/TCGA_CNV/ATP23/TCGA-02-2485.png| Thanks, Mikhail > In GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.22, > cairo version 1.17.3) > of 2020-08-29 built on juergen > Windowing system distributor 'The X.Org Foundation', version 11.0.12009000 > System Description: Arch Linux > > Recent messages: > Unchanged content check: (remote-file-error "Forbidden reentrant call > of Tramp") > error: "Command attempted to use minibuffer while in minibuffer" > Error running timer ‘image-fit-to-window’: (error "Command attempted > to use minibuffer while in minibuffer") > TCGA-02-2485.png changed on disk; really edit the buffer? (y, n, r or > C-h) n > peculiar error: File changed on disk > /ssh:horsehop:/storage1/mikpom/wizard_devel/CNV/figs/TCGA_CNV/ATP23/TCGA-02-2485.png > Error running timer ‘image-fit-to-window’: (file-supersession "File > changed on disk > /ssh:horsehop:/storage1/mikpom/wizard_devel/CNV/figs/TCGA_CNV/ATP23/TCGA-02-2485.png") > Quit: "Quit", "" > Quit > Remote file error (compat): Forbidden reentrant call of Tramp [5 times] > Error running timer ‘image-fit-to-window’: (remote-file-error > "Forbidden reentrant call of Tramp") > > Configured using: > 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib > --localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-wide-int > --with-modules --with-cairo --with-harfbuzz 'CFLAGS=-march=x86-64 > -mtune=generic -O2 -pipe -fno-plt' CPPFLAGS=-D_FORTIFY_SOURCE=2 > LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now' > > Configured features: > XPM JPEG TIFF GIF PNG RSVG CAIRO SOUND GPM DBUS GSETTINGS GLIB NOTIFY > INOTIFY ACL GNUTLS LIBXML2 FREETYPE HARFBUZZ M17N_FLT LIBOTF ZLIB > TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS LIBSYSTEMD JSON > PDUMPER LCMS2 GMP > > Important settings: > value of $LANG: en_US.UTF-8 > locale-coding-system: utf-8-unix > > Major mode: Image[png] > > Minor modes in effect: > shell-dirtrack-mode: t > tooltip-mode: t > global-eldoc-mode: t > electric-indent-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-composition-mode: t > auto-encryption-mode: t > auto-compression-mode: t > line-number-mode: t > transient-mark-mode: t > > Load-path shadows: > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-gvfs hides > /usr/share/emacs/27.1/lisp/net/tramp-gvfs > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-rclone hides > /usr/share/emacs/27.1/lisp/net/tramp-rclone > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-compat hides > /usr/share/emacs/27.1/lisp/net/tramp-compat > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-loaddefs hides > /usr/share/emacs/27.1/lisp/net/tramp-loaddefs > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-ftp hides > /usr/share/emacs/27.1/lisp/net/tramp-ftp > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-integration > hides /usr/share/emacs/27.1/lisp/net/tramp-integration > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp hides > /usr/share/emacs/27.1/lisp/net/tramp > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-sh hides > /usr/share/emacs/27.1/lisp/net/tramp-sh > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-cache hides > /usr/share/emacs/27.1/lisp/net/tramp-cache > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-adb hides > /usr/share/emacs/27.1/lisp/net/tramp-adb > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-archive hides > /usr/share/emacs/27.1/lisp/net/tramp-archive > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-cmds hides > /usr/share/emacs/27.1/lisp/net/tramp-cmds > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-smb hides > /usr/share/emacs/27.1/lisp/net/tramp-smb > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-sudoedit hides > /usr/share/emacs/27.1/lisp/net/tramp-sudoedit > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/tramp-uu hides > /usr/share/emacs/27.1/lisp/net/tramp-uu > /home/mikpom/Dropbox/.config/emacs-plugins/tramp/trampver hides > /usr/share/emacs/27.1/lisp/net/trampver > > Features: > (shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs > rfc822 mml mml-sec epa derived epg epg-config gnus-util rmail > rmail-loaddefs text-property-search mm-decode mm-bodies mm-encode > mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 > rfc2045 ietf-drums mm-util mail-prsvr mail-utils vc-hg vc-git diff-mode > vc-bzr help-fns radix-tree cl-print backtrace help-mode find-func > image-mode easymenu exif tramp-sh noutline outline easy-mmode > tramp-cache tramp tramp-loaddefs trampver tramp-integration files-x > tramp-compat shell pcomplete comint ansi-color ring parse-time iso8601 > time-date ls-lisp format-spec auth-source cl-seq eieio eieio-core > cl-macs eieio-loaddefs cl-loaddefs cl-lib password-cache json subr-x map > seq byte-opt gv bytecomp byte-compile cconv tooltip eldoc electric > uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win x-win > term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe > tabulated-list replace newcomment text-mode elisp-mode lisp-mode > prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer > select scroll-bar mouse jit-lock font-lock syntax facemenu font-core > term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang > misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms > cp51932 hebrew greek romanian slovak czech european ethiopic indian > cyrillic chinese composite charscript charprop case-table epa-hook > jka-cmpr-hook help simple abbrev obarray 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 threads dbusbind inotify lcms2 dynamic-setting > system-font-setting font-render-setting cairo move-toolbar gtk x-toolkit > x multi-tty make-network-process emacs) > > Memory information: > ((conses 16 238745 23438) > (symbols 48 9577 2) > (strings 32 29283 2492) > (string-bytes 1 1268698) > (vectors 16 23567) > (vector-slots 8 1083940 157766) > (floats 8 55 178) > (intervals 56 80877 0) > (buffers 1000 14))
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