avail memory is short by 1G on my FreeBSD 6.0-STABLE MP Dell
Paul Saab
ps at freebsd.org
Sun Nov 20 19:15:11 PST 2005
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"
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