Date: Sun, 2 Apr 2006 23:31:47 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Tom Lane <tgl@sss.pgh.pa.us> Cc: "Marc G. Fournier" <scrappy@postgresql.org>, pgsql-hackers@postgresql.org, freebsd-stable@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: [HACKERS] semaphore usage "port based"? Message-ID: <20060403033146.GA58254@xor.obsecurity.org> In-Reply-To: <27571.1144034812@sss.pgh.pa.us> 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>
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--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 <kris@obsecurity.org> 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--
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