NetBSD Problem Report #54914
From www@netbsd.org Sat Feb 1 12:55:49 2020
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for <gnats-bugs@gnats.NetBSD.org>; Sat, 1 Feb 2020 12:55:49 +0000 (UTC)
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Date: Sat, 1 Feb 2020 12:55:49 +0000 (UTC)
From: n54@gmx.com
Reply-To: n54@gmx.com
To: gnats-bugs@NetBSD.org
Subject: fcntl(F_GETPATH) is broken in chroot
X-Send-Pr-Version: www-1.0
>Number: 54914
>Category: kern
>Synopsis: fcntl(F_GETPATH) is broken for files in null mounts (layerfs)
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sat Feb 01 13:00:01 +0000 2020
>Last-Modified: Mon Aug 17 21:25:29 +0000 2020
>Originator: Kamil Rytarowski
>Release: NetBSD 9.99.44
>Organization:
TNF
>Environment:
NetBSD chieftec 9.99.44 NetBSD 9.99.44 (GENERIC) #0: Fri Jan 31 19:26:07 CET 2020 root@chieftec:/public/netbsd-root/sys/arch/amd64/compile/GENERIC amd64
>Description:
kernel/t_fcntl (76/849): 1 test cases
getpath: [0.001926s] Failed: /usr/src/tests/kernel/t_fcntl.c:76: Can't get path for `/dev/zero' (No such file or directory)
[0.002009s]
>How-To-Repeat:
Enter chroot.
Run ATF tests in kernel/t_fcntl.
>Fix:
N/A
>Release-Note:
>Audit-Trail:
From: Christos Zoulas <christos@zoulas.com>
To: gnats-bugs@netbsd.org
Cc: kern-bug-people@netbsd.org,
gnats-admin@netbsd.org,
netbsd-bugs@netbsd.org
Subject: Re: kern/54914: fcntl(F_GETPATH) is broken in chroot
Date: Sat, 1 Feb 2020 11:35:04 -0500
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Did you make /dev/zero (and the other files the test needs) in the chroot?
christos
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From: Kamil Rytarowski <n54@gmx.com>
To: gnats-bugs@netbsd.org, Santhosh Raju <fox@netbsd.org>
Cc:
Subject: Re: kern/54914: fcntl(F_GETPATH) is broken in chroot
Date: Mon, 10 Feb 2020 08:54:04 +0100
On 01.02.2020 17:40, Christos Zoulas wrote:
> The following reply was made to PR kern/54914; it has been noted by GNAT=
S.
>
> From: Christos Zoulas <christos@zoulas.com>
> To: gnats-bugs@netbsd.org
> Cc: kern-bug-people@netbsd.org,
> gnats-admin@netbsd.org,
> netbsd-bugs@netbsd.org
> Subject: Re: kern/54914: fcntl(F_GETPATH) is broken in chroot
> Date: Sat, 1 Feb 2020 11:35:04 -0500
>
> --Apple-Mail=3D_84B4B089-C89E-4424-9282-18D837E09ADA
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>
> Did you make /dev/zero (and the other files the test needs) in the chro=
ot?
>
> christos
>
>
Yes.
Steps to reproduce:
mount -t null /dev /path/to/destdir/dev
mount -t null /dev/pts /path/to/destdir/dev/pts
mount -t null /tmp /path/to/destdir/tmp
chroot /path/to/destdir/
cd /usr/tests
atf-run
Reproduced also by fox@:
tc-end: 1581320984.989260, getpath, failed,
/home/fox/projects/netbsd/src-wip/tests/kernel/t_fcntl.c:76: Can't get
path for
`/dev/zero' (No such file or directory)
"fox: I do see a /dev/zero in the chrooted environment"
This is not an issue with chroot. It works fine in the chroot if
you MAKEDEV all in /dev. The brokenneness is that the DNLC does
not understand layers, so passing it a layered vnode does not find
things.
>Unformatted:
(Contact us)
$NetBSD: query-full-pr,v 1.46 2020/01/03 16:35:01 leot Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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