From owner-freebsd-stable@FreeBSD.ORG Mon Apr 3 03:31:50 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5428E16A401 for ; Mon, 3 Apr 2006 03:31:50 +0000 (UTC) (envelope-from kris@obsecurity.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id F2C4B43D48 for ; Mon, 3 Apr 2006 03:31:49 +0000 (GMT) (envelope-from kris@obsecurity.org) Received: from obsecurity.dyndns.org (elvis.mu.org [192.203.228.196]) by elvis.mu.org (Postfix) with ESMTP id DDBB11A3C1C; Sun, 2 Apr 2006 20:31:49 -0700 (PDT) Received: by obsecurity.dyndns.org (Postfix, from userid 1000) id 7127F5152B; Sun, 2 Apr 2006 23:31:47 -0400 (EDT) Date: Sun, 2 Apr 2006 23:31:47 -0400 From: Kris Kennaway To: Tom Lane Message-ID: <20060403033146.GA58254@xor.obsecurity.org> References: <26985.1144029657@sss.pgh.pa.us> <20060402231232.C947@ganymede.hub.org> <27148.1144030940@sss.pgh.pa.us> <20060402232832.M947@ganymede.hub.org> <20060402234459.Y947@ganymede.hub.org> <27417.1144033691@sss.pgh.pa.us> <20060403031157.GA57914@xor.obsecurity.org> <27515.1144034269@sss.pgh.pa.us> <20060403032130.GA58053@xor.obsecurity.org> <27571.1144034812@sss.pgh.pa.us> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="WIyZ46R2i8wDzkSu" Content-Disposition: inline In-Reply-To: <27571.1144034812@sss.pgh.pa.us> User-Agent: Mutt/1.4.2.1i Cc: "Marc G. Fournier" , pgsql-hackers@postgresql.org, freebsd-stable@freebsd.org, Kris Kennaway Subject: Re: [HACKERS] semaphore usage "port based"? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Apr 2006 03:31:50 -0000 --WIyZ46R2i8wDzkSu Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Apr 02, 2006 at 11:26:52PM -0400, Tom Lane wrote: > Kris Kennaway writes: > > On Sun, Apr 02, 2006 at 11:17:49PM -0400, Tom Lane wrote: > >> I have no objection to doing that, so long as you are actually doing it > >> correctly. This example shows that each jail must have its own SysV > >> semaphore key space, else information leaks anyway. >=20 > > By default SysV shared memory is disallowed in jails. >=20 > Hm, the present problem seems to be about semaphores not shared memory Sorry, I meant IPC. > ... although I'd not be surprised to find that there's a similar issue > around shared memory. Anyway, if FBSD's position is that they are > uninterested in supporting SysV IPC in connection with jails, then I > think the Postgres project position has to be that we are uninterested > in supporting Postgres inside FBSD jails. No-one is taking a position of being "uninterested", so please don't be hasty to reciprocate. Kris --WIyZ46R2i8wDzkSu Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (FreeBSD) iD8DBQFEMJciWry0BWjoQKURAopWAJ4wKJny6m6FlAE06vuF39FimsgmCwCfYIz1 ALxJZi7sUXXEiRmAthf0yos= =79To -----END PGP SIGNATURE----- --WIyZ46R2i8wDzkSu--