From owner-freebsd-questions@FreeBSD.ORG Sat Oct 4 07:11:54 2003 Return-Path: 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 A3CF616A4BF for ; Sat, 4 Oct 2003 07:11:54 -0700 (PDT) Received: from digiflux.org (43.Red-80-59-151.pooles.rima-tde.net [80.59.151.43]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7EE9643FF3 for ; Sat, 4 Oct 2003 07:11:52 -0700 (PDT) (envelope-from olivas@digiflux.org) Received: from digiflux.org (localhost [127.0.0.1]) by digiflux.org (8.12.9/8.12.9) with ESMTP id h94EApZG075217 for ; Sat, 4 Oct 2003 16:10:51 +0200 (CEST) (envelope-from olivas@digiflux.org) Received: (from www@localhost) by digiflux.org (8.12.9/8.12.8/Submit) id h94EAoiQ075216; Sat, 4 Oct 2003 16:10:50 +0200 (CEST) Date: Sat, 4 Oct 2003 16:10:50 +0200 (CEST) Message-Id: <200310041410.h94EAoiQ075216@digiflux.org> X-Authentication-Warning: digiflux.org: www set sender to olivas@digiflux.org using -f To: questions@freebsd.org Received: from 10.0.0.56 (auth. user olivas@localhost) by digiflux.org with HTTP; Sat, 04 Oct 2003 15:10:50 +0100 X-IlohaMail-Blah: olivas@localhost X-IlohaMail-Method: mail() [mem] X-IlohaMail-Dummy: moo X-Mailer: IlohaMail/0.7.11 (On: digiflux.org) From: "Stacy Olivas" Bounce-To: "Stacy Olivas" Errors-To: "Stacy Olivas" MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Subject: isa_dmainit question X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Oct 2003 14:11:54 -0000 I have a question (this might need to go to -hackers, but I thought I would try here).. I'm playing with the MD_ROOT_SIZE option a FreeBSD 5.0 config file. When I set the size to anything over 7000, I get a nice little isa_dmainit(2, 1024) failed message at startup (which results in a kernel panic with: panic: isa_dmastart: bad bounce buffer (since a dma buffer wasn't able to be allocated at bootup) My question is what is the maximum size MD_ROOT can be? I thought that if there was enough memory on the system, it shouldn't matter how big it is. =20 Is there any way to get rid of this? The system I am playing with is useable without a floppy drive, but it would be nice to be able to use one. (Yes, this is me playing with my WarBSD stuff. I thought the problem I was having was gone with -p16, but it turned out I was just tired and overlooked a setting-- MD_ROOT_SIZE being set to 7000). Thanks in advance. -Stacy