GNU bug report logs - #41357
28.0.50; GC may miss to mark calle safe register content

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Package: emacs;

Reported by: Andrea Corallo <akrl <at> sdf.org>

Date: Sun, 17 May 2020 12:43:02 UTC

Severity: normal

Found in version 28.0.50

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #14 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Andrea Corallo <akrl <at> sdf.org>, Eli Zaretskii <eliz <at> gnu.org>
Cc: bug-gnu-emacs <at> gnu.org
Subject: Re: 28.0.50; GC may miss to mark calle safe register content
Date: Sun, 17 May 2020 09:46:23 -0700

On 5/17/20 9:40 AM, Andrea Corallo wrote:
> I think this is a real bug that we have in the codebase (emacs-27
> included).

Thanks for all the detective work! Your analysis is correct and your patch looks
good. I've always been suspicious of that code, and it looks like you've
confirmed my suspicions.

The only question in my mind is whether to install the patch into the emacs-27
branch or the master branch. Given Eli's problems with stability in emacs-27
(see Bug#41321), I'm inclined to think the former, as the bug could explain the
problems Eli is observing.
This bug report was last modified 5 years and 75 days ago.

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