GNU bug report logs - #22149
stack overflow in regexp matcher

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Package: emacs;

Reported by: Cheng-An Yang <rhymer123 <at> gmail.com>

Date: Sat, 12 Dec 2015 06:32:01 UTC

Severity: normal

Tags: confirmed

Found in versions 24.4, 25.0.95

Fixed in version 28.1

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

Full log

Message #40 received at 22149 <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattiase <at> acm.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: schwab <at> suse.de, rhymer123 <at> gmail.com, npostavs <at> gmail.com,
 22149 <at> debbugs.gnu.org
Subject: Re: bug#22149: 24.4; gdb stack overflow in regexp matcher
Date: Sat, 14 Mar 2020 11:43:38 +0100

14 mars 2020 kl. 11.14 skrev Eli Zaretskii <eliz <at> gnu.org>:

> I think regex-emacs.c already overrides some of the SAFE_ALLOCA
> machinery to that effect, does it not?

It uses its own limits, but the mechanism appears to be unchanged. I wonder how important the stack-growing effort in main() really is for regexp performance.
This bug report was last modified 5 years and 60 days ago.

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