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bug#61887: 30.0.50; Segfault on revert-buffer-with-coding-system
From: |
Eli Zaretskii |
Subject: |
bug#61887: 30.0.50; Segfault on revert-buffer-with-coding-system |
Date: |
Wed, 01 Mar 2023 14:47:07 +0200 |
> Date: Tue, 28 Feb 2023 23:48:18 +0200
> From: Petteri Hintsanen <petterih@iki.fi>
>
> After editing a binary file in nhexl-mode, calling
> revert-buffer-with-coding-system crashed Emacs. This happened initially
> on Emacs 28.2, but the current master branch crashes as well.
>
> Preparation:
>
> - Get nhexl-mode-1.5 from ELPA.
>
> - Create a test file "junk.dat" with:
>
> dd if=/dev/random of=junk.dat bs=1k count=5k
>
> or use any existing large binary file (5 MBs or more).
>
> Recipe:
>
> ./gdb --args emacs -Q
>
> In *scratch* buffer, type
>
> (add-to-list 'load-path "~/.emacs.d/elpa/nhexl-mode-1.5")
> (require 'nhexl-mode)
>
> M-x eval-buffer
>
> M-x find-file-literally junk.dat
>
> M-x nhexl-mode RET
>
> M-x nhexl-mode RET
>
> C-x RET r utf-8 RET yes RET
Thank you for your report.
Stefan, can you please look into this? It sounds like nhexl-mode
leaves an interval tree in the buffer which causes problems when
reverting non-literally. (Maybe reverting non-literally after
visiting literally, or vice versa, should dispose of all the
intervals?)
- bug#61887: 30.0.50; Segfault on revert-buffer-with-coding-system,
Eli Zaretskii <=