Real and available memory?

[Julian H. Stacey]

Krassimir Slavchev wrote:
> Julian H. Stacey wrote:
> > Krassimir Slavchev wrote:
> >   
> >> Hello,
> >>
> >> I have Vortex86-6082 with 128Mb AMI bios.
> >>
> >> Why the kernel reports only 80 MB available memory?
> >> Is this related to BIOS or kernel settings?
> >>
> >> dmesg output:
> >>
> >> Copyright (c) 1992-2006 The FreeBSD Project.
> >> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> >>         The Regents of the University of California. All rights reserved.
> >> FreeBSD 6.1-STABLE #0: Wed Jul 26 10:09:06 EEST 2006
> >>     root at krassi:/usr/obj/usr/src/sys/TINYBSD
> >> Timecounter "i8254" frequency 1193182 Hz quality 0
> >> CPU: Pentium (166.61-MHz 586-class CPU)
> >>   Origin = "SiS SiS SiS "  Id = 0x505
> >> real memory  = 125829120 (120 MB)
> >> avail memory = 84332544 (80 MB)
> >> kbd1 at kbdmux0
> >> ...
> >>     
> >
> >
> > Does the mboard BIOS on monitor at boot recognise all 128 M ? 
> >
> > I've seen boards that only recognised 1/4 of the SIM size.
> > 80 seems a bit of an odd (non hex) number though.
> >
> >   
> Yes, at boot the board recognizes 128Mb. The RAM is embedded on the board.
> The kernel reports real 120 Mb because maybe 8 Mb is used by video card.
> I don't know why exact 80Mb is reported but 80 = 64+16.

Have you tried unplugging every board (inc. ethernet scsi raid etc)
& plugging in a different (modest, old as possible. less demanding)
graphic card ? Maybe that'd give a clue, maybe your graphics card
is taking more than 8M ?

-- 
Julian Stacey.   Unix & C Consultant, Munich / Muenchen   http://berklix.com
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