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bug#34404: 26.1; Finalizer in hash table run early?

From: Lars Ingebrigtsen
Subject: bug#34404: 26.1; Finalizer in hash table run early?
Date: Fri, 27 Nov 2020 08:56:33 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

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

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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