[Bug 280809] jail_attach(2) fails to document reason for EPERM

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 13 Aug 2024 20:51:55 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280809

Olivier Certner <olce@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |olce@FreeBSD.org

--- Comment #1 from Olivier Certner <olce@FreeBSD.org> ---
Funnily, I stumbled into the exact same problem today in a different context...

That behavior is very indirectly documented through the paragraph:
> Further jail(), jail_set(), and jail_attach() call chroot(2) internally,
> so they can fail for all the same reasons.  Please consult the chroot(2)
> manual page for details.

I agree that the jail_attach(2) manpage should mention the other "common"
reason for getting EPERM (another reason is for the attach to be rejected by
the MAC framework, and there are still potentially others).

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