From owner-freebsd-hackers Tue Jan 23 15:17:16 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from fw.wintelcom.net (ns1.wintelcom.net [209.1.153.20]) by hub.freebsd.org (Postfix) with ESMTP id 7511337B402 for ; Tue, 23 Jan 2001 15:16:59 -0800 (PST) Received: (from bright@localhost) by fw.wintelcom.net (8.10.0/8.10.0) id f0NNGvf14857; Tue, 23 Jan 2001 15:16:57 -0800 (PST) Date: Tue, 23 Jan 2001 15:16:57 -0800 From: Alfred Perlstein To: John Gregor Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: searching physical memory... Message-ID: <20010123151657.J26076@fw.wintelcom.net> References: <200101232141.f0NLfCm43863@vieo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200101232141.f0NLfCm43863@vieo.com>; from johng@vieo.com on Tue, Jan 23, 2001 at 03:41:12PM -0600 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG * John Gregor [010123 13:41] wrote: > All, > > I'm doing hardware bringup and am suspecting that our adapter is > dma-ing to the wrong physical address. We know we're getting a PCI > bus transaction when we expect it, but we don't know where it's going. > > Until the bus analyzer arrives, what's the easiest way to go through > physical memory looking for a known pattern? Is it really as simple as > opening /dev/mem and marching through it? see the mem(4) manpage and let us know. :) -- -Alfred Perlstein - [bright@wintelcom.net|alfred@freebsd.org] "I have the heart of a child; I keep it in a jar on my desk." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message