The following reply was made to PR kern/30202; it has been noted by GNATS.

From: Jason Thorpe <thorpej@shagadelic.org>
To: gnats-bugs@netbsd.org
Cc: kern-bug-people@netbsd.org, netbsd-bugs@netbsd.org
Subject: Re: kern/30202: 256 MB of memory missing on 4 GB box
Date: Wed, 11 May 2005 13:00:01 -0700

 On May 11, 2005, at 12:50 PM, ctribo@dtcc.edu wrote:
 
 >> Number:         30202
 >> Category:       kern
 >> Synopsis:       256 MB of memory missing on 4 GB box
 >> Confidential:   no
 >> Severity:       non-critical
 >> Priority:       low
 >> Responsible:    kern-bug-people
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Wed May 11 19:50:00 +0000 2005
 >> Originator:     Chris Tribo
 >> Release:        3.99.3
 >> Organization:
 >> Environment:
 >>
 > NetBSD 3.99.3 (GENERIC.MPACPI) #0: Tue May 10 17:22:01 EDT 2005
 >         root@mybox:/usr/obj/sys/arch/i386/compile/GENERIC.MPACPI
 >
 >> Description:
 >>
 > This machine has 4096 MB of RAM, is a memory region being missed?
 >
 >
 > NetBSD 3.99.3 (GENERIC.MPACPI) #0: Tue May 10 17:22:01 EDT 2005
 >         root@mybox:/usr/obj/sys/arch/i386/compile/GENERIC.MPACPI
 > total memory = 3839 MB
 > avail memory = 3750 MB
 
 This is "normal".  The i386 port currently only supports physical  
 addresses up to 0xfffff000.  So, you loose a bit of memory because  
 the PCI memory mapped space has to live somewhere below that address,  
 as well.
 
 -- thorpej