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

From: Paul Eggert <eggert <at> cs.ucla.edu>
To: Eli Zaretskii <eliz <at> gnu.org>, Andrea Corallo <akrl <at> sdf.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 14:27:55 -0700

On 5/17/20 10:28 AM, Eli Zaretskii wrote:
> I'm saying that we've lived with this
> bug for a very long time, so if it is real, it is definitely very-very
> rare.

Yes, it very much has the smell of a GC bug: rare and hard to reproduce, but
deadly when it occurs. I wouldn't be surprised if it's causing the rare and
hard-to-reproduce crashes you reported in Bug#41321. You might try installing
the patch into your copy of emacs-27 and see whether it affects Bug#41321.
This bug report was last modified 5 years and 75 days ago.

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