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Date: Wed, 09 Jul 2008 21:10:26 -0700
From: Julian Elischer <julian@elischer.org>
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To: Peter Jeremy <peterjeremy@optushome.com.au>
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Cc: David Christensen <davidch@broadcom.com>,
	"freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Subject: Re: Proper Printf Format for Printing Physical Addresses on 32 and
 64 bit Systems
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Peter Jeremy wrote:
> On 2008-Jul-09 18:00:45 -0700, David Christensen <davidch@broadcom.com> wrote:
>> I have some debugging code in my network driver and I'd like
>> to print out the physical address of a memory block.  What's
>> the right way to use a printf() that works on both 32 and 64
>> bit platforms?
> 
> %p - see printf(3) or printf(9)

unfortunately he specified PHYSICAL address.
in a PAE machine you need a 64 bit number to hold it on
a "32 bit" machine.

and that isn't the only machine where physical and virtual addresses 
are not the same. (think original x86 :-)


>