From owner-freebsd-current@FreeBSD.ORG Mon May 3 09:15:53 2004 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5A81E16A4D0 for ; Mon, 3 May 2004 09:15:53 -0700 (PDT) Received: from TRANG.nuxi.com (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2ACA743D45 for ; Mon, 3 May 2004 09:15:53 -0700 (PDT) (envelope-from obrien@NUXI.com) Received: from dragon.nuxi.com (obrien@localhost [127.0.0.1]) by TRANG.nuxi.com (8.12.11/8.12.10) with ESMTP id i43GFk3s028423; Mon, 3 May 2004 09:15:46 -0700 (PDT) (envelope-from obrien@dragon.nuxi.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.12.11/8.12.11/Submit) id i43GFkFt028422; Mon, 3 May 2004 09:15:46 -0700 (PDT) (envelope-from obrien) Date: Mon, 3 May 2004 09:15:46 -0700 From: "David O'Brien" To: Andrew Gallatin Message-ID: <20040503161546.GA28385@dragon.nuxi.com> References: <200404301403.50634.past@noc.ntua.gr> <20040430123040.GB30157@melusine.cuivre.fr.eu.org> <20040430211948.GC85783@dragon.nuxi.com> <16534.21617.310294.982202@grasshopper.cs.duke.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <16534.21617.310294.982202@grasshopper.cs.duke.edu> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 5.2-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 cc: freebsd-current@FreeBSD.ORG Subject: Re: partial dumps (was Re: Change default dumpdir to /usr/crash?) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: obrien@FreeBSD.ORG List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 May 2004 16:15:53 -0000 On Mon, May 03, 2004 at 10:17:21AM -0400, Andrew Gallatin wrote: > Another good idea (perhaps in combination with a larger /var) is to > accept and port to -current the Duke "partial dump" patches. These > patches allow the user to optionally dump just the kernel virtual > address space. This results in dumps that are generally less than > 100MB, rather than multiple gigs. > > In nearly all cases, only the kernel address space is needed to > interpret a dump. From what I've seen, this is what Solaris, AIX, and > Tru64 do by default. > > Porting to -current will be non-trivial because of the dump changes > between 4.x and 5.x. If I was to do this, is there any chance that > it could get into the tree? I would certainly back it. I wouldn't need 32GB swap partitions just to take a dump. :-) -- -- David (obrien@FreeBSD.org)