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bug#46908: 28.0.50; Dozens of spurious markers in buffer-undo-list


From: Michael Heerdegen
Subject: bug#46908: 28.0.50; Dozens of spurious markers in buffer-undo-list
Date: Sun, 07 Mar 2021 03:45:40 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

> > Does making a marker point to nil with `set-marker' then make it
> > suitable for garbage collection?  I guess not.
>
> GC compacts the buffer's undo-list, and that is supposed to remove
> those entries.  Doesn't it?

Maybe it does that.

What I can say that gc removes a significant amount of markers, but that
also a lot are left after gc.  And the positions of the markers that are
left are numbers (not nil).

Michael.





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