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bug#43700: 28.0.50; Crash creating a second frame
From: |
Andy Moreton |
Subject: |
bug#43700: 28.0.50; Crash creating a second frame |
Date: |
Thu, 01 Oct 2020 01:15:20 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (windows-nt) |
On Wed 30 Sep 2020, Andy Moreton wrote:
> On Tue 29 Sep 2020, Andy Moreton wrote:
>
>> On 29/09/2020 15:37, Eli Zaretskii wrote:
>>>> From: Andy Moreton <andrewjmoreton@gmail.com>
>>>> Date: Tue, 29 Sep 2020 11:46:48 +0100
>>>>
>>>> After loading emacs (and files saved by desktop), do C-x 5 2 to create a
>>>> new frame. Emacs crashes, and gdb shows the following backtrace.
>>> Is this repeatable? Does it happen with "emacs -Q", per chance? Or
>>> with unoptimized builds?
>
> Building with -O0 from commit 5b0d8d0f288fd505ca90bd30df709a5e7ab540d6 I
> can reproduce the crash on another machine with the same setup:
I have not managed to repro this problem from emacs -Q, but after
further investigation I have narrowed it down to some interaction with
settings in my .emacs.d/init.el and org mode:
1) Run "emacs --no-desktop" (so using my init.el)
2) Load a trivial org file (e.g. containing "* foo", a single heading)
3) Type "C-x 5 2" to create a new frame (causing the crash)
The init.el file has:
(tool-bar-mode 0))
;; ...much omitted...
(use-package org
:bind
(:map org-mode-map
([remap org-toggle-archive-tag] . ignore)
([remap org-archive-subtree] . ignore)
([remap org-archive-subtree-default] . ignore)
([remap org-archive-to-archive-sibling] . ignore))
...
If I comment out the remap bindings, emacs does not crash in the recipe above,
and also does not crash if I use this instead:
(use-package org
:bind
(:map org-mode-map
("C-c C-x a" . nil) ;; was org-toggle-archive-tag
("C-c $" . nil) ;; was org-archive-subtree
("C-c C-x C-a" . nil) ;; was org-archive-subtree-default
("C-c C-x A" . nil)) ;; was org-archive-to-archive-sibling
...
I have an effective workaround now, but nevertheless emacs should not
crash: the key binding commands should reject invalid configuration.
The use-package binding internals invoke define-key, and that macro
should reject invalid settings.
AndyM