From owner-freebsd-questions Fri Aug 7 14:14:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id OAA25459 for freebsd-questions-outgoing; Fri, 7 Aug 1998 14:14:40 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from resnet.uoregon.edu (resnet.uoregon.edu [128.223.144.32]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id OAA25312 for ; Fri, 7 Aug 1998 14:14:04 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Received: from localhost (dwhite@localhost) by resnet.uoregon.edu (8.8.5/8.8.8) with SMTP id OAA16295; Fri, 7 Aug 1998 14:13:30 -0700 (PDT) (envelope-from dwhite@resnet.uoregon.edu) Date: Fri, 7 Aug 1998 14:13:30 -0700 (PDT) From: Doug White To: Nathan Torkington cc: freebsd-questions@FreeBSD.ORG Subject: Re: 512M in FreeBSD 2.2-STABLE+CAM In-Reply-To: <199808071851.MAA08265@prometheus.frii.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 7 Aug 1998, Nathan Torkington wrote: > 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. You don't need bounce buffers, and I believe that panic is documented somewhere, but I can't recall where. Check the mail archives. > 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? It may be an overflow in the kernel or the CAM code. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message