From owner-freebsd-stable  Wed May 19 10:26:23 1999
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Date: Wed, 19 May 1999 13:25:51 -0400 (EDT)
From: Bob K <melange@yip.org>
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To: OCD Support <support@kawartha.com>
Cc: "Jason J. Horton" <jason@intercom.com>,
	freebsd-questions@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG
Subject: Re: 3.1-RELEASE not seeing all the RAM
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From LINT:

# MAXMEM specifies the amount of RAM on the machine; if this is not
# specified, FreeBSD will first read the amount of memory from the CMOS
# RAM, so the amount of memory will initially be limited to 64MB or 16MB
# depending on the BIOS.  If the BIOS reports 64MB, a memory probe will
# then attempt to detect the installed amount of RAM.  If this probe
# fails to detect >64MB RAM you will have to use the MAXMEM option.
# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
# be 131072 (128 * 1024).

So (to Jason Horton) put this line in your kernel:

options         "MAXMEM=(128*1024)"

On Wed, 19 May 1999, OCD Support wrote:

> That's really strange as we have a 3.1-RELEASE running here on a Pentium Pro
> 200 w/515k cache and it finds all the memory properly... wondering if maybe
> it's a motherboard issue?  Just an offthewall guess...:)
> 
> Paul
> 
> "Jason J. Horton" wrote:
> 
> >  I have a 3.1-RELEASE box running, and it keeps
> > running out of memory. The odd thing is 'dmesg'
> > shows the machine having 16M of RAM, while
> > BIOS shows 128M... The system is a PPro 200mHz
> > running a GENERIC kernel. 'dmesg' output below.
> > Are there any known issues as to why the kernel
> > would not see all the RAM?
> >
> > FreeBSD 3.1-RELEASE #0: Mon Feb 15 11:08:08 GMT 1999
> >     jkh@usw3.freebsd.org:/usr/src/sys/compile/GENERIC
> > Timecounter "i8254"  frequency 1193182 Hz
> > Timecounter "TSC"  frequency 199432716 Hz
> > CPU: Pentium Pro (199.43-MHz 686-class CPU)
> >   Origin = "GenuineIntel"  Id = 0x619  Stepping=9
> >
> > Features=0xf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV>
> > real memory  = 15728640 (15360K bytes)
> > avail memory = 12288000 (12000K bytes)
> > Preloaded elf kernel "kernel" at 0xf0340000.
> > Probing for devices on PCI bus 0:
> > chip0: <Intel 82440FX (Natoma) PCI and memory controller> rev 0x02 on
> > pci0.0.0
> > chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.7.0
> > ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.7.1
> > ahc0: <Adaptec 2940 Ultra SCSI adapter> rev 0x00 int a irq 11 on pci0.11.0
> > ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs
> > fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x05 int a irq 10 on
> > pci0.17.0
> >
> >         -Jason J. Horton <jason@intercom.com>
> >          Man of Mystery
> >          Intercom Online Inc.
> >          212.378.2202 | http://www.intercom.com
> >
> > To Unsubscribe: send mail to majordomo@FreeBSD.org
> > with "unsubscribe freebsd-questions" in the body of the message
> 
> 
> 
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> 

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