Date: Wed, 09 Aug 2006 15:45:04 +0300 From: Krassimir Slavchev <krassi@bulinfo.net> To: John Baldwin <jhb@freebsd.org> Cc: Julian Stacey <jhs@berklix.org>, freebsd-hardware@freebsd.org Subject: Re: Real and available memory? Message-ID: <44D9D8D0.1020704@bulinfo.net> In-Reply-To: <200608090832.30259.jhb@freebsd.org> References: <200608090908.k79988pY086073@fire.jhs.private> <44D9B553.6030003@bulinfo.net> <200608090832.30259.jhb@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
John Baldwin wrote: > On Wednesday 09 August 2006 06:13, Krassimir Slavchev wrote: > >> 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? >> > > Are you using an MFS root or a really large kernel? > > Yes, MFS root is 32 Mb and kernel is ~3.4Mb
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?44D9D8D0.1020704>