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bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-m
From: |
Noam Postavsky |
Subject: |
bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data |
Date: |
Fri, 20 Mar 2020 04:37:49 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.90 (gnu/linux) |
tags 40088 + patch
quit
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> Since the void-variable is getting triggered from
>> backtrace_eval_unrewind, I tried the patch below, which almost seems
>> to fix the problem,
>
> Indeed, the patch looks good (except for the removal of `static` which
> seems like a spurious artifact).
No, the removal is on purpose, because I'm calling default_value from
eval.c, and it's defined in data.c. But, maybe you thought that because
I didn't add the corresponding declaration in a header file, and...
>> but after continuing from the debugger there's a
>> segfault in GC, so it's definitely not the Right Thing.
... the segfault happens because I forgot to declare default_value in
lisp.h, so its return value got converted to int. *Forehead slap*
So here's the proper patch. Eli, is it okay for emacs-27? As I
mentioned earlier, the underlying bug was present in Emacs 26 and
earlier, but it's only surfaced in Emacs 27 because of debug.el
enhancements.
0001-Don-t-signal-during-backtrace-unrewind-Bug-40088.patch
Description: patch
bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/17
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/18
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Stefan Monnier, 2020/03/18
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data,
Noam Postavsky <=
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Eli Zaretskii, 2020/03/20
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/21
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Eli Zaretskii, 2020/03/22
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/22
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Eli Zaretskii, 2020/03/22
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/22
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Eli Zaretskii, 2020/03/23
- bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Noam Postavsky, 2020/03/23
bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Joost Kremers, 2020/03/23
bug#40088: 27.0.90; Symbol’s value as variable is void: debugger-outer-match-data, Stefan Monnier, 2020/03/20