From: Eli Zaretskii <eliz@gnu.org>
To: yorwba <yorwb4@gmail.com>
Cc: 28346@debbugs.gnu.org
Subject: bug#28346: 24.5; Emacs hangs when terminal becomes smaller than set margin
Date: Mon, 04 Sep 2017 18:32:19 +0300 [thread overview]
Message-ID: <83efrm32f0.fsf@gnu.org> (raw)
In-Reply-To: <0cffd11a-a66d-c872-76e8-af4aaf21c9ca@gmail.com> (message from yorwba on Mon, 4 Sep 2017 17:49:25 +0800)
> From: yorwba <yorwb4@gmail.com>
> Date: Mon, 4 Sep 2017 17:49:25 +0800
>
> This bug only appears when Emacs is run in a terminal emulator that
> allows changing the window size.
>
> Steps to reproduce:
>
> 1. Run `emacs -nw -Q` in a small terminal window
> 2. Evaluate (setq width (window-width (get-buffer-window (current-buffer))))
> The value is 74 in my case.
> 3. Enlarge the terminal window (I go fullscreen with 150 columns).
> 4. Evaluate (set-window-margins (get-buffer-window (current-buffer)) 0 width)
> 5. Resize the terminal emulator window back to the original size (or smaller).
> 6. The terminal goes blank and no longer reacts to input.
>
> Attaching gdb and using finish to end all terminating functions, I found that
> it gets stuck in move_it_vertically_backwards (in xdisp.c). It keeps taking
> the goto move_further_back without actually moving further back.
>
> I believe that this is caused by incorrectly adjusting the margins when the
> total available width changes.
Thanks, but please also show the C backtrace from the place where
Emacs hangs, it's an important part of the problem.
next prev parent reply other threads:[~2017-09-04 15:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-04 9:49 bug#28346: 24.5; Emacs hangs when terminal becomes smaller than set margin yorwba
2017-09-04 15:32 ` Eli Zaretskii [this message]
[not found] ` <5211a085-f1ea-5aeb-21e0-1a4143d5ebaf@gmail.com>
2017-09-04 15:46 ` Eli Zaretskii
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