Date: Wed, 09 Aug 2006 11:28:16 +0300 From: Krassimir Slavchev <krassi@bulinfo.net> To: "Julian H. Stacey" <jhs@flat.berklix.net> Cc: hardware@freebsd.org Subject: Re: Real and available memory? Message-ID: <44D99CA0.1030703@bulinfo.net> In-Reply-To: <200608090754.k797sqnH085387@fire.jhs.private> References: <200608090754.k797sqnH085387@fire.jhs.private>
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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@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.
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