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

[Michael Albinus]

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.