From owner-freebsd-rc@FreeBSD.ORG Mon Feb 13 19:30:08 2006 Return-Path: X-Original-To: freebsd-rc@hub.freebsd.org Delivered-To: freebsd-rc@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DE90D16A422; Mon, 13 Feb 2006 19:30:08 +0000 (GMT) (envelope-from dougb@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id AC5F143D46; Mon, 13 Feb 2006 19:30:08 +0000 (GMT) (envelope-from dougb@FreeBSD.org) Received: from freefall.freebsd.org (dougb@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id k1DJU80G008819; Mon, 13 Feb 2006 19:30:08 GMT (envelope-from dougb@freefall.freebsd.org) Received: (from dougb@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id k1DJU8gA008815; Mon, 13 Feb 2006 19:30:08 GMT (envelope-from dougb) Date: Mon, 13 Feb 2006 19:30:08 GMT From: Doug Barton Message-Id: <200602131930.k1DJU8gA008815@freefall.freebsd.org> To: nge@cs.hmc.edu, dougb@FreeBSD.org, freebsd-rc@FreeBSD.org, dougb@FreeBSD.org Cc: Subject: Re: conf/73834: Bad dependencies for /etc/rc.d/savecore X-BeenThere: freebsd-rc@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Discussion related to /etc/rc.d design and implementation." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Feb 2006 19:30:09 -0000 Synopsis: Bad dependencies for /etc/rc.d/savecore State-Changed-From-To: open->closed State-Changed-By: dougb State-Changed-When: Mon Feb 13 19:25:33 UTC 2006 State-Changed-Why: First, it turns out that you can actually recover a dump even after the partition has been swapon'ed. Second, the problem you describe here has been discussed at great length on the freebsd-current mailing list. The short version is that there is a chicken and egg problem. In order to capture the dump, you need a file system to write to. In order to get a file system to write to, you need fsck. In order to allow fsck to run on a memory constrained system, you may need swap. Thus, the current thinking is that the status quo is the best of our current options. Responsible-Changed-From-To: freebsd-rc->dougb Responsible-Changed-By: dougb Responsible-Changed-When: Mon Feb 13 19:25:33 UTC 2006 Responsible-Changed-Why: I'm closing this one. http://www.freebsd.org/cgi/query-pr.cgi?pr=73834