GNU bug report logs - #72721
31.0.50; Visual-wrap-prefix-mode breaks Magit log buffers

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Jim Porter <jporterbugs <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#72710: closed (31.0.50; visual-wrap-prefix-mode freezes
 rendering in conjunction with diff-hl (fringe display))
Date: Fri, 30 Aug 2024 05:04:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Thu, 29 Aug 2024 22:01:45 -0700
with message-id <ba6fdd4c-88c7-1c62-69f3-bf372c983c0e <at> gmail.com>
and subject line Re: bug#72721: 31.0.50; Visual-wrap-prefix-mode breaks Magit log buffers
has caused the debbugs.gnu.org bug report #72721,
regarding 31.0.50; visual-wrap-prefix-mode freezes rendering in conjunction with diff-hl (fringe display)
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
72721: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=72721
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: "Mark Hepburn" <mark <at> markhepburn.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50;
 visual-wrap-prefix-mode freezes rendering in conjunction with diff-hl
 (fringe display)
Date: Mon, 19 Aug 2024 22:15:51 +1000

[Message part 3 (text/plain, inline)]

--text follows this line--

Turning on the recently-merged visual-wrap-prefix-mode while using the
fringe display of diff-hl (a mode to display uncommitted file changes in
the fringe area) causes rendering to completely freeze.  No backtrace is
reported, although subsequent visual-line-move commands produce an
error.  Emacs itself is responsive, so the file can be re-opened with
`find-alternate-file'.

To reproduce from emacs -Q:
* Install diff-hl (clone https://github.com/dgutov/diff-hl/, add to
load-path)
* open a file under version control
* M-x diff-hl-mode
* make some edits, ensure the fringe shows the lines highlighted (I
think it might need multiple lines affected)
* M-x visual-wrap-prefix-mode

For me the effect varies between a blank unresponsive buffer and a
buffer I can still see the contents (with the cursor frozen and
appearing unselected), but either way it is unusable.

It seems to be the fringe display; the same experiment with a clean file
had no effect.


In GNU Emacs 31.0.50 (build 3, x86_64-pc-linux-gnu, GTK+ Version
3.24.41, cairo version 1.18.0) of 2024-08-18 built on x1carbon
Repository revision: 909d1d02db1c11e1309316cba2a392e1456e6053
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101011
System Description: Ubuntu 24.04 LTS

Configured using:
'configure --with-native-compilation --without-mailutils
--with-xwidgets --with-tree-sitter --with-libsystemd
--prefix=/home/mark/.local'

Configured features:
CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG
LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER
PNG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER
WEBP X11 XDBE XIM XINPUT2 XPM XWIDGETS GTK3 ZLIB

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

Major mode: Magit

Minor modes in effect:
  global-git-commit-mode: t
  magit-auto-revert-mode: t
  global-treesit-fold-mode: t
  windmove-mode: t
  dap-tooltip-mode: t
  dap-ui-many-windows-mode: t
  dap-ui-controls-mode: t
  dap-ui-mode: t
  gdb-many-windows: t
  treemacs-filewatch-mode: t
  treemacs-follow-mode: t
  treemacs-git-mode: t
  treemacs-fringe-indicator-mode: t
  dap-auto-configure-mode: t
  dap-mode: t
  envrc-global-mode: t
  envrc-mode: t
  which-key-mode: t
  repeat-help-mode: t
  repeat-mode: t
  global-ligature-mode: t
  ligature-mode: t
  whole-line-or-region-global-mode: t
  whole-line-or-region-local-mode: t
  global-diff-hl-mode: t
  prescient-persist-mode: t
  vertico-mode: t
  server-mode: t
  eros-mode: t
  recentf-mode: t
  marginalia-mode: t
  pyvenv-tracking-mode: t
  pyvenv-mode: t
  global-corfu-mode: t
  corfu-mode: t
  nerd-icons-completion-mode: t
  editorconfig-mode: t
  delete-selection-mode: t
  global-hl-line-mode: t
  global-auto-revert-mode: t
  save-place-mode: t
  pixel-scroll-precision-mode: t
  override-global-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  show-paren-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tab-bar-history-mode: t
  tab-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  minibuffer-regexp-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t

Load-path shadows:
/home/mark/.emacs.d/elpa/which-key-20240620.2145/which-key hides /home/mark/.local/share/emacs/31.0.50/lisp/which-key
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig-fnmatch hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig-fnmatch
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig-core hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig-core
/home/mark/.emacs.d/elpa/transient-20240814.1922/transient hides /home/mark/.local/share/emacs/31.0.50/lisp/transient
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig-core-handle hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig-core-handle
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig-tools hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig-tools
/home/mark/.emacs.d/elpa/editorconfig-20240813.801/editorconfig-conf-mode hides /home/mark/.local/share/emacs/31.0.50/lisp/editorconfig-conf-mode
/home/mark/.emacs.d/elpa/hierarchy-20190425.842/hierarchy hides /home/mark/.local/share/emacs/31.0.50/lisp/emacs-lisp/hierarchy

Features:
(shadow sort mail-extr emacsbug magit-extras magit-bookmark
magit-submodule magit-blame magit-stash magit-reflog magit-bisect
magit-push magit-pull magit-fetch magit-clone magit-remote magit-commit
magit-sequence magit-notes magit-worktree magit-tag magit-merge
magit-branch magit-reset magit-files magit-refs magit-status magit
magit-repos magit-apply magit-wip magit-log which-func magit-diff
git-commit log-edit add-log magit-core magit-autorevert magit-margin
magit-transient magit-process with-editor magit-mode benchmark magit-git
magit-base magit-section cursor-sensor crm tramp-archive tramp-gvfs
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treemacs-fringe-indicator pulse treemacs-faces treemacs-icons
treemacs-scope treemacs-themes treemacs-core-utils pfuture
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nerd-icons-data-faicon nerd-icons-data-powerline nerd-icons-data-octicon
nerd-icons-data-pomicon nerd-icons-data-ipsicon editorconfig
editorconfig-core editorconfig-core-handle editorconfig-fnmatch
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mc-hide-unmatched-lines-mode mc-mark-more sgml-mode facemenu dom
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files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads xwidget-internal dbusbind inotify dynamic-setting
system-font-setting font-render-setting cairo gtk x-toolkit xinput2 x
multi-tty move-toolbar make-network-process native-compile emacs)

Memory information:
((conses 16 8478905 674468) (symbols 48 76145 5)
(strings 32 816048 145448) (string-bytes 1 17160624)
(vectors 16 181488) (vector-slots 8 2794651 298645)
(floats 8 2705 15503) (intervals 56 26684 8525) (buffers 992 83))

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From: Jim Porter <jporterbugs <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 72721-done <at> debbugs.gnu.org, gautier <at> gautierponsinet.xyz
Subject: Re: bug#72721: 31.0.50; Visual-wrap-prefix-mode breaks Magit log
 buffers
Date: Thu, 29 Aug 2024 22:01:45 -0700

On 8/29/2024 4:47 AM, Eli Zaretskii wrote:
>> Date: Sun, 25 Aug 2024 11:41:40 -0700
>> Cc: 72721 <at> debbugs.gnu.org, gautier <at> gautierponsinet.xyz
>> From: Jim Porter <jporterbugs <at> gmail.com>
>>
>>> Thanks.  How about adding these to test/manual/redisplay-testsuite.el?
>>
>> Do these look ok? It tests everything except window-specific overlays.
> 
> LGTM, please install.

Done in 91851fbbf53. I think everything's done now for this bug, so 
closing this. (If I missed something, just let me know.)

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