Re: Should (buffer-list) ever return killed buffers?

[Sergey Organov]

Clément Pit-Claudel <cpitclaudel@gmail.com> writes:

> On 5/23/21 7:14 PM, Sergey Organov wrote:
>> Hello!
>> 
>> I'm trying to fix a problem where `desktop-clear` errors-out because
>> (buffer-list) contains killed buffer.
>
> Could it be that the actions you take on one buffer while iterating on
> (buffer-list) cause another buffer later in the list to be killed?

This is relevant code snippet from "desktop.el":

    (dolist (buffer (buffer-list))
      (let ((bufname (buffer-name buffer)))
        (unless (or (eq (aref bufname 0) ?\s) ;; Don't kill internal buffers
                    (string-match-p preserve-regexp bufname))
          (kill-buffer buffer)))))


I fail to see how I can take any actions between its calls to (buffer-list)
and (aref bufname 0), that errors-out of bufname being nil.

Ah, apparently killing one buffer kills another... but why it happens
only when called from timer? Mystery.

Thanks,
-- Sergey Organov