From owner-freebsd-questions Fri Aug 7 13:29:11 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id NAA15033 for freebsd-questions-outgoing; Fri, 7 Aug 1998 13:29:11 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from revolution.3-cities.com (revolution.3-cities.com [204.203.224.155]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id NAA15013 for ; Fri, 7 Aug 1998 13:29:08 -0700 (PDT) (envelope-from msmith@revolution.3-cities.com) Received: (from msmith@localhost) by revolution.3-cities.com (8.8.5/8.7.3) id NAA21859; Fri, 7 Aug 1998 13:28:33 -0700 (PDT) From: Mark D Smith Message-Id: <199808072028.NAA21859@revolution.3-cities.com> Subject: Re: 512M in FreeBSD 2.2-STABLE+CAM To: gnat@frii.com (Nathan Torkington) Date: Fri, 7 Aug 1998 13:28:31 -0700 (PDT) Cc: freebsd-questions@FreeBSD.ORG In-Reply-To: <199808071851.MAA08265@prometheus.frii.com> from "Nathan Torkington" at Aug 7, 98 12:51:12 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG BOUNCE_BUFFERS is unneccesary when using a PCI SCSI card. B_B option is only need on a VESA/ISA bus SCSI card and more than 16MB of ram. UNLESS that is, there's something radically different about CAM which I've not yet tried out. Mark > We've got a machine we'll be using for our web cache and primary DNS. > We want to put 512M of RAM in it and use the cam kernel. > > We duly built a 2.2-stable cam kernel configured for 512M of RAM, and > installed 512M in the machine. We had to enable the BOUNCE_BUFFERS > option for cam support. When we brought the machine up, it panicked > on startup when probing the disk controller (aic7890/91) and gave > "brkadrint" panic. > > We cut it back to 384M of RAM in the machine (still using the kernel > built for 512M) and it booted fine. > > Any pointers as to what could be going wrong? > > Thanks, > > Nat > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message