From owner-freebsd-questions Mon Sep 23 11: 8:15 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EBD3A37B401 for ; Mon, 23 Sep 2002 11:08:13 -0700 (PDT) Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com [24.147.188.198]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4EB8F43E3B for ; Mon, 23 Sep 2002 11:08:13 -0700 (PDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: from be-well.ilk.org (lowellg.ne.client2.attbi.com [24.147.188.198]) by be-well.ilk.org (8.12.6/8.12.5) with ESMTP id g8NI8CLm031255; Mon, 23 Sep 2002 14:08:12 -0400 (EDT) (envelope-from freebsd-questions-local@be-well.no-ip.com) Received: (from lowell@localhost) by be-well.ilk.org (8.12.6/8.12.6/Submit) id g8NI8B1j031252; Mon, 23 Sep 2002 14:08:11 -0400 (EDT) X-Authentication-Warning: be-well.ilk.org: lowell set sender to freebsd-questions-local@be-well.ilk.org using -f To: Nicholas Esborn Cc: Kris Kennaway , freebsd-questions@FreeBSD.ORG Subject: Re: Practical limit for pre-loaded md_image size? References: <20020922081120.GA54982@carbon.berkeley.netdot.net> <20020922181917.GB46345@xor.obsecurity.org> <20020922201441.GB54982@carbon.berkeley.netdot.net> From: Lowell Gilbert Date: 23 Sep 2002 14:08:11 -0400 In-Reply-To: <20020922201441.GB54982@carbon.berkeley.netdot.net> Message-ID: <441y7ksho4.fsf@be-well.ilk.org> Lines: 27 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Nicholas Esborn writes: > I've tried this on two machines: > > 1 4.7-RC w/ 512 MB of RAM > 2 5.0-CURRENT w/ 256 MB of RAM > > Both behave the same way with a ~128MB md_image. Did you check the manual? It says: "The default maximum size of a md disk backed by malloc(9) is 20,000 sectors of 512 bytes each. This can be changed with the kernel option MD_NSECT." > -nick > > On Sun, Sep 22, 2002 at 11:19:18AM -0700, Kris Kennaway wrote: > > On Sun, Sep 22, 2002 at 01:11:20AM -0700, Nicholas Esborn wrote: > > > Hello, > > > > > > I've been trying to boot a kernel and a preloaded md_image of about 128MB. > > > > > > The kernel and image load, and then about a quarter of a second after the > > > kernel executes, before any text even prints, the machine reboots. > > > > > > Has anyone had better luck with large md_image root filesystems? > > > > You forgot to mention how much RAM you have, and what FreeBSD version. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message