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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Unexec dumping results in "Segmentation fault" on Windows Msys2
Date: Fri, 16 Apr 2021 22:41:21 +0300
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To: Nikolay Kudryavtsev <nikolay.kudryavtsev@gmail.com>
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In-Reply-To: <79b4e022-5d46-ae76-2192-9e8594c43d8d@gmail.com> (message from
 Nikolay Kudryavtsev on Fri, 16 Apr 2021 19:57:57 +0300)
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> From: Nikolay Kudryavtsev <nikolay.kudryavtsev@gmail.com>
> Cc: emacs-devel@gnu.org
> Date: Fri, 16 Apr 2021 19:57:57 +0300
> 
> Temacs p current_thread: 0x40095df20.
> 
> Emacs.exe does not exist("mv -f emacs.exe bootstrap-emacs.exe" gets done 
> just before it tries to compile those elisp files and crashes), but for 
> bootstrap-emacs.exe it's 0xffea01a5df20p.

This seems to confirm my guess that ASLR is at play here.  So please
try those two linker switches I mentioned in my previous message, they
could fix the problem.