Gentoo Archives: gentoo-user

From: Iain Buchanan <iaindb@××××××××××××.au>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: BIOS says 2GB, MemTest86 says 2GB, top says 900MB
Date: Tue, 19 Jan 2010 03:56:36
Message-Id: 1263873321.3316.117.camel@localhost
In Reply to: [gentoo-user] Re: BIOS says 2GB, MemTest86 says 2GB, top says 900MB by Mark Knecht
1 On Mon, 2010-01-18 at 19:08 -0800, Mark Knecht wrote:
2 > On Mon, Jan 18, 2010 at 6:09 PM, Mark Knecht <markknecht@×××××.com> wrote:
3
4 > > How does memory get reported up to the kernel? Is that something in
5 > > the kernel (i.e. - choosing the proper chipset support or something)
6 > > or is it purely the return from some sort of BIOS call? If so can it
7 > > be tested or circumvented to get the machine to recognize everything
8 > > I've put in?
9 > >
10 > > Thanks,
11 > > Mark
12 >
13 > A very simple test - booting from an old Gentoo install CD - shows 2GB
14 > - so apparently it's a kernel config issue.
15
16 High Memory Support to be precise :) In your case CONFIG_HIGHMEM4G=y
17 should do.
18
19 Processor Type And Features
20 => High Memory Support
21 => off / 4Gb / 64Gb
22
23 --
24 Iain Buchanan <iaindb at netspace dot net dot au>
25
26 Whenever people agree with me, I always think I must be wrong.
27 - Oscar Wilde

Replies

Subject Author
Re: [gentoo-user] Re: BIOS says 2GB, MemTest86 says 2GB, top says 900MB Mark Knecht <markknecht@×××××.com>