GNU bug report logs - #46972
28.0.50; [feature/native-comp] Emacs locks itself during native compilation because of permission denied

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Package: emacs;

Reported by: Matt M <mmerino <at> outlook.fr>

Date: Sat, 6 Mar 2021 17:43:01 UTC

Severity: normal

Found in version 28.0.50

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Matt M <mmerino <at> outlook.fr>
Cc: 46972 <at> debbugs.gnu.org, akrl <at> sdf.org
Subject: bug#46972: RE : RE : RE : bug#46972: 28.0.50; [feature/native-comp] Emacs locks itself during native compilation because of permission denied
Date: Fri, 12 Mar 2021 09:36:01 +0200

> From: Matt M <mmerino <at> outlook.fr>
> CC: "46972 <at> debbugs.gnu.org" <46972 <at> debbugs.gnu.org>
> Date: Fri, 12 Mar 2021 00:26:18 +0000
> 
> The Following patch seems to fix my problem :
> --- a/lisp/emacs-lisp/comp.el
> +++ b/lisp/emacs-lisp/comp.el
> @@ -3778,13 +3778,7 @@ comp-delete-or-replace-file
>           (while
>               (condition-case _
>                   (progn
> -                   ;; oldfile maybe recreated by another Emacs in
> -                   ;; between the following two rename-file calls
> -                   (if (file-exists-p oldfile)
> -                       (rename-file oldfile (make-temp-file-internal
> -                                             (file-name-sans-extension oldfile)
> -                                             nil ".eln.old" nil)
> -                                    t))
> +                   (delete-file oldfile)
>                     (when newfile
>                       (rename-file newfile oldfile nil))
>                     ;; Keep on trying.
> Changed the call to rename-file to delete-file.

Thanks, but I don't think we can use this solution, due to the reason
explained in the comment there.  (You can, of course, use it locally,
if the danger described there is not relevant for your usage.)

I apologize that I didn't yet have time to recreate the problem you
described and look into it: the native-comp branch is still not stable
enough for me to try such non-trivial situations.  I didn't forget,
though.
This bug report was last modified 4 years and 131 days ago.

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