From: Lars Ingebrigtsen <larsi@gnus.org>
To: martin rudalics <rudalics@gmx.at>
Cc: 34404@debbugs.gnu.org, "Braun Gábor" <braungb88@gmail.com>
Subject: bug#34404: 26.1; Finalizer in hash table run early?
Date: Fri, 27 Nov 2020 08:56:33 +0100 [thread overview]
Message-ID: <87mtz3kzbi.fsf@gnus.org> (raw)
In-Reply-To: <366c6cbb-d9fe-d672-12f7-3f04987555ac@gmx.at> (martin rudalics's message of "Thu, 26 Nov 2020 16:45:09 +0100")
martin rudalics <rudalics@gmx.at> writes:
>> So now I'm confused: Is Emacs still using a pure mark-and-sweep gc as
>> the Emacs Internals section of the elisp manual says?
>
> Conservative implies mark and sweep. You can't relocate objects in the
> heap because that would invalidate any pointers from the stack.
But mark and sweep does not imply conservative -- you can have a mark
and sweep gc that will garbage-collect 100% of the garbage, which a
conservative gc typically will not.
The Emacs documentation seems to imply that Emacs has one of these 100%
garbage collectors, which is what this bug report is about, I think: The
user has an object that the gc should collect, but it's not collected
(always).
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2020-11-27 7:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-09 13:39 bug#34404: 26.1; Finalizer in hash table run early? Braun Gábor
2020-11-26 12:15 ` Lars Ingebrigtsen
2020-11-26 12:54 ` Andreas Schwab
2020-11-26 14:23 ` Eli Zaretskii
2020-11-26 15:45 ` martin rudalics
2020-11-27 7:56 ` Lars Ingebrigtsen [this message]
2020-11-27 8:23 ` Eli Zaretskii
2020-11-27 8:33 ` Lars Ingebrigtsen
2020-11-27 8:42 ` Eli Zaretskii
2020-11-29 10:05 ` Lars Ingebrigtsen
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