Date: Wed, 09 Aug 2006 13:13:39 +0300 From: Krassimir Slavchev <krassi@bulinfo.net> To: Julian Stacey <jhs@berklix.org> Cc: hardware@freebsd.org Subject: Re: Real and available memory? Message-ID: <44D9B553.6030003@bulinfo.net> In-Reply-To: <200608090908.k79988pY086073@fire.jhs.private> References: <200608090908.k79988pY086073@fire.jhs.private>
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Julian Stacey wrote: > Reference: > >> From: Krassimir Slavchev <krassi@bulinfo.net> >> Date: Wed, 09 Aug 2006 11:46:33 +0300 >> Message-id: <44D9A0E9.30608@bulinfo.net> >> > > Krassimir Slavchev wrote: > >> Julian H. Stacey wrote: >> >>> 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@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 ? >>> >>> >>> >> No, I can't unplug anything, see: >> http://www.icop.com.tw/products_detail.asp?ProductID=119 >> > > Interesting little board, (might be of interest to other freebsd.org > mail lists eg small, real time ). > > That URL specifies > 128MB SDRAM > ... > AGP Rev.2.0 compliant > Shared system memory up to 64MB (Default 8 MB) > Maybe BIOS is no longer defaulting to 8 Meg ? > Checkable / Settable in BIOS ? > > I can't find anything related to video memory in the BIOS but it seems to be correct real memory = 120 Mb reported by the kernel. My question is why the available memory is only 80Mb?
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