GNU bug report logs - #33275
27.0.50; Image cache pruning

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Package: emacs;

Reported by: Lars Ingebrigtsen <larsi <at> gnus.org>

Date: Mon, 5 Nov 2018 14:09:02 UTC

Severity: normal

Tags: fixed

Found in version 27.0.50

Fixed in version 27.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 33275 <at> debbugs.gnu.org
Subject: bug#33275: 27.0.50; Image cache pruning
Date: Mon, 05 Nov 2018 21:24:42 +0200

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Cc: 33275 <at> debbugs.gnu.org
> Date: Mon, 05 Nov 2018 20:06:41 +0100
> 
> In general, if you don't have a reference to an object, you can be
> pretty sure that Emacs is going to garbage-collect it.

Of course.  But you cannot control when that GC will happen.

> > That it doesn't is just sheer luck: the way we manage buffer memory is
> > special.  With any other Lisp object, it could well grow
> > uncontrollably.
> 
> What other non-referenced Lisp object can realistically make Emacs grow
> in this way?

Theoretically, anything.  In practice, I've seen such situations with
fonts.
This bug report was last modified 5 years and 239 days ago.

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