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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.bugs
Subject: bug#47067: 28.0.50;
 [feature/native-comp] Crash while scrolling through dispnew.c
Date: Sat, 13 Mar 2021 19:09:44 +0200
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Cc: akrl@sdf.org, 47067@debbugs.gnu.org
To: Pip Cet <pipcet@gmail.com>
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 (message from Pip Cet on Sat, 13 Mar 2021 16:32:50 +0000)
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> From: Pip Cet <pipcet@gmail.com>
> Date: Sat, 13 Mar 2021 16:32:50 +0000
> Cc: Andrea Corallo <akrl@sdf.org>, 47067@debbugs.gnu.org
> 
> > And why I never had any problems with setjmp elsewhere in Emacs,
> > although we use it all the time in keyboard.c and elsewhere?
> 
> It's only natively-compiled code that attempts to call setjmp through
> a function pointer. This was fixed in the POSIX case, but I didn't
> touch the Windows code because I assumed that they used the extra
> argument in their non-standard API to do this right...

And if you remove that fix, you get the same or similar crashes in the
recipe I provided?