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Date:      Tue, 23 Jan 2001 15:16:57 -0800
From:      Alfred Perlstein <bright@wintelcom.net>
To:        John Gregor <johng@vieo.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: searching physical memory...
Message-ID:  <20010123151657.J26076@fw.wintelcom.net>
In-Reply-To: <200101232141.f0NLfCm43863@vieo.com>; from johng@vieo.com on Tue, Jan 23, 2001 at 03:41:12PM -0600
References:  <200101232141.f0NLfCm43863@vieo.com>

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* John Gregor <johng@vieo.com> [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."


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