Real and available memory?
Krassimir Slavchev
krassi at bulinfo.net
Wed Aug 9 10:15:38 UTC 2006
Julian Stacey wrote:
> Reference:
>
>> From: Krassimir Slavchev <krassi at bulinfo.net>
>> Date: Wed, 09 Aug 2006 11:46:33 +0300
>> Message-id: <44D9A0E9.30608 at 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 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 ?
>>>
>>>
>>>
>> 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?
More information about the freebsd-hardware
mailing list