Re: A ton of marker entry in buffer-und-list

[Eli Zaretskii]

> From: Yuan Fu <casouri@gmail.com>
> Date: Fri, 26 Feb 2021 08:20:51 -0500
> Cc: help-gnu-emacs@gnu.org
> 
>  (#<marker at 27 in a> . -1)
> 
>  … hundreds of this.
> 
>  Any idea of what is happening? What is this marker?
> 
>  Doesn't the ELisp manual provide an answer to that question?  It does
>  describe the structure and the meaning of such an element in
>  undo-list.
> 
> I know what they mean but it is quite strange to have some many of (#<marker 
> at 27 in a> . -1) in
> buffer-undo-list—it is a new buffer and I didn’t create any marker in it, so 
> it shouldn’t have hundreds of
> markers to move.

hard to say without seeing the code which produces this effect.  What
is at position 27 in buffer 'a'?