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bug#62504: 30.0.50; SEGFAULT On M-x
From: |
Jacob Faibussowitsch |
Subject: |
bug#62504: 30.0.50; SEGFAULT On M-x |
Date: |
Tue, 28 Mar 2023 11:25:49 -0400 |
Hello,
This bug is twofold and appears to be related to bug#62446 and bug#61917. I
produce a much smaller reproducer that generates the same kind of error as
bug#61917, namely `(wrong-number-of-arguments #<subr signal> 2)`. Segfaults
only occur after the following commit:
commit 52b67740d10df8ca539fdc2c7d50283997683141
Author: Mattias Engdegård <mattiase@acm.org>
Date: Sat Mar 25 15:38:00 2023 +0100
Generalise a LAP optimisation rule
* lisp/emacs-lisp/byte-opt.el (byte-optimize-lapcode):
Accept (stack-set 1) as equivalent to (discardN-preserve-tos 1) in a
rule previously overlooked. This is usually beneficial in code size
and almost always shortens dynamic paths.
Common setup:
1. mkdir repro
2. Put attached init.el and main.c inside (technically, main.c need not be in
repro)
———
To reproduce bug#61917:
1. git checkout master
2. configure --with-native-compilation \
--without-x \
--without-ns \
--without-compress-install \
--with-native-compilation \
--with-json \
--with-tree-sitter
3. make bootstrap
4. emacs --init-directory ../repro
5. Check messages, and ye shall find the bug message.
———
To reproduce segfault:
1. git checkout 52b67740d10df8ca539fdc2c7d50283997683141
2. Perform same configure and build commands as above.
3. emacs --init-directory ../repro ../repro/main.c (loading main.c is
*required*, the segfault does not fire otherwise)
4. (In emacs) M-x
5. Fatal error 11: Segmentation fault
Best regards,
Jacob Faibussowitsch
(Jacob Fai - booss - oh - vitch)
main.c
Description: Binary data
init.el
Description: Binary data
config.log
Description: Binary data
- bug#62504: 30.0.50; SEGFAULT On M-x,
Jacob Faibussowitsch <=