Package: emacs;
Reported by: Luis Gerhorst <privat <at> luisgerhorst.de>
Date: Wed, 20 Dec 2017 19:33:02 UTC
Severity: normal
Found in version 25.1
Fixed in version 26.0.91
Done: Glenn Morris <rgm <at> gnu.org>
Bug is archived. No further changes may be made.
View this message in rfc822 format
From: Luis Gerhorst <privat <at> luisgerhorst.de> To: 29789 <at> debbugs.gnu.org Subject: bug#29789: 25.1; Emacs blocks user input when using visual-fill-column in wide terminals Date: Wed, 20 Dec 2017 20:28:27 +0100
1. Run Emacs in a wide terminal (about 150 characters, 100 isn't enough): emacs -nw -Q 2. Load a arbitrary theme: M-x load-theme adwaita 3. Load visual-fill-column. E.g. by copying https://raw.githubusercontent.com/joostkremers/visual-fill-column/c0e5ec8f88a7598f7afdee565978410bee0de2a0/visual-fill-column.el into the scratch buffer and typing M-x eval-buffer. There is nothing suspicious about the code, regular lisp code should not be able to block Emacs (I believe). It does not seem to contain any loops that block the main thread. The maintainer knows about the issue but say's it may be an issue with low-level code. In GUI Emacs it works. 4. Open a buffer and enable visual-fill-column-mode: M-x visual-fill-column-mode 5. Your Emacs is now blocked. In ZSH when I type C-g C-g I'm back in my shell which displays the message "zsh: suspended emacs -nw -Q". This bug has been encountered by multiple users on different operating systems (Debian, Ubuntu and macOS) running different versions of Emacs (24.5 to 26.0), some reported it here: https://github.com/joostkremers/visual-fill-column/issues/1 In GNU Emacs 25.1.1 (x86_64-pc-linux-gnu, GTK+ Version 3.22.11) of 2017-09-15, modified by Debian built on trouble System Description: Debian GNU/Linux 9.3 (stretch) Configured using: 'configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/lib --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-pop=yes --enable-locallisppath=/etc/emacs25:/etc/emacs:/usr/local/share/emacs/25.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/25.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --with-x=yes --with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2 -fdebug-prefix-map=/build/emacs25-wN2qS3/emacs25-25.1+1=. -fstack-protector-strong -Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro' Configured features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 Important settings: value of $LC_ALL: en_US.UTF-8 value of $LC_CTYPE: C.UTF-8 value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix Major mode: GFM Minor modes in effect: luis-text-wrap-mode: t visual-fill-column-mode: t adaptive-wrap-prefix-mode: t diff-auto-refine-mode: t shell-dirtrack-mode: t ws-butler-mode: t show-paren-mode: t frame-restore-mode: t winner-mode: t global-company-mode: t company-mode: t which-key-mode: t flx-ido-mode: t ido-vertical-mode: t crm-custom-mode: t ido-ubiquitous-mode: t ido-everywhere: t projectile-global-mode: t projectile-mode: t recentf-mode: t global-auto-revert-mode: t override-global-mode: t tooltip-mode: t global-eldoc-mode: t electric-indent-mode: t mouse-wheel-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 column-number-mode: t line-number-mode: t visual-line-mode: t transient-mark-mode: t Recent messages: Source file ‘/home/cip/2016/un65esoq/.emacs.d/elpa/bind-key-2.3/bind-key.el’ newer than byte-compiled file Loading /home/cip/2016/un65esoq/.emacs.d/recentf...done Cleaning up the recentf list...done (0 removed) Source file ‘/home/cip/2016/un65esoq/.emacs.d/elpa/s-1.12.0/s.el’ newer than byte-compiled file Source file ‘/home/cip/2016/un65esoq/.emacs.d/elpa/company-0.9.4/company-dabbrev.el’ newer than byte-compiled file Unable to load color "brightgreen" [12 times] For information about GNU Emacs and the GNU system, type C-h C-a. 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Memory information: ((conses 16 647388 21245) (symbols 48 43035 0) (miscs 40 574 465) (strings 32 104884 16016) (string-bytes 1 3270643) (vectors 16 79586) (vector-slots 8 1717257 54052) (floats 8 8003 1977) (intervals 56 1023 0) (buffers 976 440))
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