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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Problem with portable dumper
Date: Sun, 16 Feb 2020 05:28:33 +0200
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To: Michael Albinus <michael.albinus@gmx.de>
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> From: Michael Albinus <michael.albinus@gmx.de>
> Cc: Eli Zaretskii <eliz@gnu.org>,  emacs-devel@gnu.org
> Date: Sat, 15 Feb 2020 21:58:13 +0100
> 
> The changes in files.el and vc-hooks.el are not related to Tramp. I have
> changed the find-file* family of functions as well as vc-refresh-state
> to run asynchronously if indicated. Tramp just profits from it.

Why can't you make the mutex nil before dumping and restore it at
startup?