From owner-freebsd-questions@FreeBSD.ORG Wed Mar 21 16:28:53 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C539416A421 for ; Wed, 21 Mar 2007 16:28:53 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from mail.potentialtech.com (internet.potentialtech.com [66.167.251.6]) by mx1.freebsd.org (Postfix) with ESMTP id 9658F13C468 for ; Wed, 21 Mar 2007 16:28:53 +0000 (UTC) (envelope-from wmoran@potentialtech.com) Received: from vanquish.pgh.priv.collaborativefusion.com (pr40.pitbpa0.pub.collaborativefusion.com [206.210.89.202]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.potentialtech.com (Postfix) with ESMTP id BA8B6EBC62; Wed, 21 Mar 2007 12:28:52 -0400 (EDT) Date: Wed, 21 Mar 2007 12:28:52 -0400 From: Bill Moran To: Greg Barniskis Message-Id: <20070321122852.8eaa2663.wmoran@potentialtech.com> In-Reply-To: <46015BFD.4060806@scls.lib.wi.us> References: <42991.167.246.36.14.1174490156.squirrel@webmail.dfwlp.org> <4601501C.3060605@gmail.com> <10072.167.246.36.14.1174492472.squirrel@webmail.dfwlp.org> <20070321121031.d95cadf6.wmoran@potentialtech.com> <46015BFD.4060806@scls.lib.wi.us> X-Mailer: Sylpheed 2.3.1 (GTK+ 2.10.9; i386-portbld-freebsd6.1) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Jonathan Horne , freebsd-questions@freebsd.org Subject: Re: started playing with jails X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Mar 2007 16:28:53 -0000 In response to Greg Barniskis : > Bill Moran wrote: > > > I've had trouble getting programs that use shared memory (such as Postgres) > > to run inside a jail, but it's been a while since I've tried. > > Postgres needs this in the host rc.conf: > > jail_sysvipc_allow="YES" My experiments with Postgres in jail predate the existence of that setting. When I was working with it, you had to frob a sysctl via /etc/sysctl.conf But even then, I couldn't seem to get it to work -- the Postgres in the jail would corrupt the shared memory of the postgres outside the jail. It was ugly. Imagine big, wet tears rolling down my cheeks. I haven't had the need to try it in a while, so it might work OK now, I just don't know. -- Bill Moran http://www.potentialtech.com