From owner-freebsd-hackers@FreeBSD.ORG Wed Feb 7 10:47:51 2007 Return-Path: X-Original-To: hackers@freebsd.org Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0C92D16A49E; Wed, 7 Feb 2007 10:47:51 +0000 (UTC) (envelope-from joe@tao.org.uk) Received: from mailhost.tao.org.uk (transwarp.tao.org.uk [87.74.4.34]) by mx1.freebsd.org (Postfix) with ESMTP id B4FBA13C4B2; Wed, 7 Feb 2007 10:47:50 +0000 (UTC) (envelope-from joe@tao.org.uk) Received: from genius.tao.org.uk (wireless58.dhcp.tao.org.uk [87.74.4.58]) by mailhost.tao.org.uk (Postfix) with ESMTP id 92C9C6174; Wed, 7 Feb 2007 10:47:49 +0000 (GMT) Received: by genius.tao.org.uk (Postfix, from userid 1000) id DD08140A8; Wed, 7 Feb 2007 10:47:47 +0000 (GMT) Date: Wed, 7 Feb 2007 10:47:47 +0000 From: Josef Karthauser To: Eric Anderson Message-ID: <20070207104747.GB4431@genius.tao.org.uk> References: <20070204023711.GA3393@genius.tao.org.uk> <45C8A9B2.4090605@freebsd.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="R3G7APHDIzY6R/pk" Content-Disposition: inline In-Reply-To: <45C8A9B2.4090605@freebsd.org> User-Agent: Mutt/1.5.11 Cc: hackers@freebsd.org, fs@freebsd.org Subject: Re: nullfs and named pipes. X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Feb 2007 10:47:51 -0000 --R3G7APHDIzY6R/pk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 06, 2007 at 10:15:46AM -0600, Eric Anderson wrote: > > > >Is this a fundamental design issue with null_fs or a bug? > > > >There appears to be a lot of confusion on the lists about this point > >as many people are trying to do this so as to make a single mysql > >server available from within a number of jails, for instance. However > >people appear to think that this is a limitation of the jail code, not a > >limitation of the null_fs code. Having named pipes work in null_fs > >filesystems would be a very handy thing indeed. > > > >I'd appreciate any insights into this. >=20 > Just wanted to say that it seems like this should work, and I'm not yet= =20 > certain why it doesn't. I've looked into it a bit, but my time is very= =20 > limited, so I doubt I'll be able to put much more into it.. >=20 It's been brought to my attention that there's been a PR open about it since April 2003: http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/51583. It's got a patch in it, but it's not complete. I'd really really appreciated it if someone with file system foo could take a look and comment. Thanks thanks, Joe --R3G7APHDIzY6R/pk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iEYEARECAAYFAkXJrlMACgkQXVIcjOaxUBacNgCfWw8EMNOAYjJd76v5nkj+TJeq KEYAoLHIvU6/GiIKmAGHLyHiqy8z+9d8 =IbNb -----END PGP SIGNATURE----- --R3G7APHDIzY6R/pk--