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Date: Thu, 04 Nov 2021 08:41:29 +0100
Message-Id: <CFGTQQCY2G7L.9FDT1842P4H8@taiga>
Subject: Re: Complicated interactions between O_EXEC, fdescfs, fexecve, and
 shebangs
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From: "Drew DeVault" <sir@cmpwn.com>
To: "Konstantin Belousov" <kostikbel@gmail.com>
Cc: <freebsd-hackers@freebsd.org>
References: <CFG3ZHMPFLXC.23GNZT9S4UWEZ@taiga>
 <YYKQLN3FYk1t78gY@kib.kiev.ua>
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On Wed Nov 3, 2021 at 2:35 PM CET, Konstantin Belousov wrote:
> - Semantic of the FreeBSD fdescfs open(2) is different, to get the
> behavior similar to Linux, you need to specify "nodup" mount option,
> see fdescfs(5).

fdescfs(5) does not mention a nodup option, but it does mention a
linrdlnk option. Helpfully, it does not tell us what this option
actually does.