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bug#45737: 27.1.50; Assertion failure in window_box_height
From: |
Eli Zaretskii |
Subject: |
bug#45737: 27.1.50; Assertion failure in window_box_height |
Date: |
Sat, 09 Jan 2021 12:00:50 +0200 |
> From: martin rudalics <rudalics@gmx.at>
> Date: Sat, 9 Jan 2021 10:33:02 +0100
>
> (progn
> (tab-line-mode)
> (split-window (split-window) nil t)
> (split-window)
> (split-window (split-window nil nil t) nil t))
>
> and resizing the frame by dragging its lower right corner with the mouse
> to very small rectangles I can trigger the following assertion failure:
>
> ../../src/xdisp.c:1170: Emacs fatal error: assertion failed: height >= 0
> [...]
> Lisp Backtrace:
> "redisplay_internal (C function)" (0x0)
> (gdb) frame 2
> #2 0x0000000000458382 in window_box_height (w=0x149d100) at
> ../../src/xdisp.c:1170
> 1170 eassert (height >= 0);
> (gdb) p height
> $2 = -54
> (gdb)
>
> indicates that the total height of one of the windows dropped to -54
> pixels. The problematic code is in 'window-sizable' which is not
> prepared for the case that window sizes can drop below their minimum
> size, something which can happen when a frame with many windows is made
> very small. I propose the attached patch to fix this. OK to install?
What happens in the above scenario with your patch installed?
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height,
Eli Zaretskii <=
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, Eli Zaretskii, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, Eli Zaretskii, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, Eli Zaretskii, 2021/01/09
- bug#45737: 27.1.50; Assertion failure in window_box_height, martin rudalics, 2021/01/10