From owner-freebsd-hackers Tue Jul 9 1:46:13 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id D629837B400 for ; Tue, 9 Jul 2002 01:46:10 -0700 (PDT) Received: from mailf.telia.com (mailf.telia.com [194.22.194.25]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9FE6043E31 for ; Tue, 9 Jul 2002 01:46:09 -0700 (PDT) (envelope-from erikt@midgard.homeip.net) Received: from d1o913.telia.com (d1o913.telia.com [195.252.44.241]) by mailf.telia.com (8.11.6/8.11.6) with ESMTP id g698k8U07731 for ; Tue, 9 Jul 2002 10:46:08 +0200 (CEST) Received: from falcon.midgard.homeip.net (h53n2fls20o913.telia.com [212.181.163.53]) by d1o913.telia.com (8.8.8/8.8.8) with SMTP id KAA16985 for ; Tue, 9 Jul 2002 10:46:06 +0200 (CEST) Received: (qmail 8067 invoked by uid 1001); 9 Jul 2002 08:46:05 -0000 Date: Tue, 9 Jul 2002 10:46:04 +0200 From: Erik Trulsson To: Matthew Dillon Cc: David Schultz , Terry Lambert , Chuck Robey , FreeBSD Hackers List Subject: Re: swap & huge mem systems Message-ID: <20020709084604.GA7920@falcon.midgard.homeip.net> Mail-Followup-To: Matthew Dillon , David Schultz , Terry Lambert , Chuck Robey , FreeBSD Hackers List References: <20020708212522.N945-100000@april.chuckr.org> <20020709015454.GA6323@falcon.midgard.homeip.net> <3D2A4DDB.75F8561B@mindspring.com> <20020709050048.GA27599@HAL9000.wox.org> <200207090527.g695R23C049724@apollo.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200207090527.g695R23C049724@apollo.backplane.com> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, Jul 08, 2002 at 10:27:02PM -0700, Matthew Dillon wrote: > > :Thus spake Terry Lambert : > :> Erik Trulsson wrote: > :> > Minimal swap if you want to be able to catch core dumps: Physical RAM > :> > size + 64K > : > :I've caught many core dumps with swap == RAM. Am I just getting > :lucky, or am I losing 64K of the image? > : > :> Crash dumps good. > : > :I beg to differ. ;-) > > You only need as much as physical ram. e.g. 1G of ram, 1G on the > dump device (which can be the swap partition). The man page for dumpon(8) says: The size of the specified dump device must be at least 64 KB greater than the size of physical memory. So I guess either you or the manpage is wrong. -- Erik Trulsson ertr1013@student.uu.se To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message