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Date:      Tue, 02 Dec 2025 13:59:04 +0000
From:      "Poul-Henning Kamp" <phk@phk.freebsd.dk>
To:        Moin Rahman <bofh@freebsd.org>
Cc:        Samir <samir.otmane@numericable.fr>, "freebsd-hackers@freebsd.org" <freebsd-hackers@FreeBSD.org>
Subject:   Re: FreeBSD but without jail
Message-ID:  <202512021359.5B2Dx4VL075037@critter.freebsd.dk>
In-Reply-To: <8C497C07-E01C-47E3-93A5-4CD44141E6C2@freebsd.org>
References:  <f410fd52-cb62-4304-a74d-db31179a2459@numericable.fr> <8C497C07-E01C-47E3-93A5-4CD44141E6C2@freebsd.org>

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--------
Moin Rahman writes:


> You can build your system with the following in your `src.conf`
> WITHOUT_JAIL=yes

That only prevents the userland programs notably jail(8) from being
built.  The kernel support for jails is tightly integrated, not
controlled by an option.

I dont think anybody has ever suggested, there even might be
a measurable performance impact, so I'm a bit puzzled as to
the goal might be here ?

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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