FreeBSD 7.0 and RAM limit
Kris Kennaway
kris at FreeBSD.org
Sat Jul 5 11:23:24 UTC 2008
Robert Heron wrote:
> Hi,
>
> I use:
>
> FreeBSD 7.0-R on i386 server with motherboard S5000VSA and 6GB RAM
> onboard. BIOS version - 88 (the latest)
>
> Kernel includes: options MAXMEM=(6*1024*1024)
>
> And FreeBSD reports only:
>
> real memory = 2680160256 (2556 MB)
> avail memory = 2617892864 (2496 MB)
>
> Why? What is wrong that FreeBSD sees only about 2.5GB instead of 6GB?
The i386 architecture cannot address more than 4GB (== 2^32) of RAM
unless you use PAE (i.e. the PAE kernel). You don't need to set MAXMEM
either, since it's autodetected.
Kris
More information about the freebsd-questions
mailing list