avail memory is short by 1G on my FreeBSD 6.0-STABLE MP Dell

[Dan Nelson]

In the last episode (Nov 20), Paul Saab said:
> Dan Nelson wrote:
> >In the last episode (Nov 20), Paul Saab said:
> >>Chad Leigh -- Shire.Net LLC wrote:
> >>>I assume you are talking about the "phenomenon"  of RAM "missing"
> >>>due to PCI and other I/O mapping into the 4GB address space?  What
> >>>struck me about the OP is that the amount of RAM "missing" is more
> >>>than I have ever seen due to this.  My systems are usually
> >>>3.4-3.6GB of RAM with 4GB installed, not 2.86GB (3005MB)...  So
> >>>are we sure that the PCI space mapping is the problem?
> >>
> >>Enable PAE and you'll get all your ram.
> >
> >Anyone know if it's possible for the kernel to determine if any RAM
> >is mapped above the 4gb point and warn the user about how much
> >memory is unaccessable without PAE?
>
> You mean like it does now?
> "262144K of memory above 4GB ignored"

That line didn't show up the the original poster's dmesg, though (
http://unixmania.com/dmesg_20051120.txt ).  Maybe a verbose boot would
shed more light.

-- 
	Dan Nelson
	dnelson at allantgroup.com