bug#31099: 27.0.50; ultra long tramp entries in recentf file

[Thomas Hisch]

Hi Michael,

no I can't reproduce it neither using emacs -Q nor with my current emacs 
setup. I regularly update and recompile emacs and my installed elisp 
packages. Approx. 2 weeks ago I noticed that closing emacs takes longer 
than 10sec, but I didn't investigate this further until yesterday.

My recentf config is quite simple:

(setq recentf-save-file (concat thi::cache-file-dir "/recentf"))

(require 'recentf)
(recentf-mode 1)
(setq recentf-keep '(file-remote-p file-readable-p))
(setq recentf-max-menu-items 60)
(setq recentf-max-saved-items 500)
(setq recentf-exclude '("COMMIT_EDITMSG"
                        ".newsrc-dribble"))

I'll keep an eye on this issue.

On 2018-04-09 16:38, Michael Albinus wrote:
> Thomas Hisch <thomas.hisch@ims.co.at> writes:
>
> Hi Thomas,
>
> > I have a recentf file containing only 171 lines but it's 56MB big! Due to
> > its large size loading and closing emacs is slowed down.
> >
> > The large size is due to a few tramp entries like the following (each
> > entry consumes approx 10MB):
> >
> >    #("/ssh:user@host:/file1" 1 4 (match-part #("/ssh:user@host:/file2" 1 4
> >     ....
> >
> > I guess that this is either a bug in recentf or in tramp.
>
> I cannot reproduce it locally. Usually, I don't use recentf. For testing
> I've enabled it via `M-x recentf-mode', closed Emacs, and started a new
> Emacs session. Visiting the recentf file, it doesn't look suspicious.
>
> Do you reproduce the problem with a similar setting, starting with
> "emacs -Q"?
>
> Could you send me your recentf file? Maybe I'll see something Tramp
> related there.
>
> Best regards, Michael.
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