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bug#24109: 24.5; Long lines in message mode make Emacs irresponsive
From: |
Yuri D'Elia |
Subject: |
bug#24109: 24.5; Long lines in message mode make Emacs irresponsive |
Date: |
Sat, 01 Oct 2016 20:25:57 +0200 |
User-agent: |
mu4e 0.9.17; emacs 24.5.1 |
test.el.gz
Description: application/gzip
1475346254.png
Description: PNG image
On Sat, Oct 01 2016, Yuri D'Elia <wavexx@thregr.org> wrote:
> I noticed one thing while trying to restrict the problem: setting
> auto-hscroll-mode to nil, an error is shown in the *Messages* buffer
> instead of entering an infinite loop:
>
> previous-line: Beginning of buffer
>
> while not moving the cursor at all on the first invocation, but working
> on the second. If something is off there, it might as well be trigger
> horizontal scrolling and thus conflict with the current goal column.
Ok, after some testing, I was able to get a self-contained test case.
I was successfully able to test this into the current git's master with
emacs -q, built with lucid as the main toolkit.
Please load-file the attached sample. It will create a *test* buffer,
using a quoted representation of (buffer-substring) which is sufficient
to recreate the problem.
It will move the point to the beginning of the last line, as well as
switching on truncate-lines. Having the point on the beginning of the
line is important.
Switch to the *test* buffer and move up. It will hang at the "Luciaine"
line. I'm also attaching a screenshot of my current window state.
If you toggle auto-hscroll-mode instead, before scrolling, you'll see
how the cursor disappears instead when exactly at the beginning of the
line.
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Yuri D'Elia, 2016/10/01
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Eli Zaretskii, 2016/10/01
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive,
Yuri D'Elia <=
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Eli Zaretskii, 2016/10/02
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Eli Zaretskii, 2016/10/08
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Yuri D'Elia, 2016/10/08
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Eli Zaretskii, 2016/10/08
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Yuri D'Elia, 2016/10/08
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Christophe Troestler, 2016/10/09
- bug#24109: 24.5; Long lines in message mode make Emacs irresponsive, Eli Zaretskii, 2016/10/10