From: Dave Airlie <airlied@linux.ie>
To: linux-kernel@vger.kernel.org
Subject: 2.6.0 incorrect memory sizing (without a full BIOS)..
Date: Fri, 19 Dec 2003 05:04:25 +0000 (GMT) [thread overview]
Message-ID: <Pine.LNX.4.58.0312190451210.9093@skynet> (raw)
Hi all,
I've got an internal development board based on the Intel 815
chipset and the Intel ACSFL mini-BIOS for embedded systems, and then using
grub 0.93 to boot Linux.
under 2.4 my memory is correctly sized at 256MB, but under 2.6 I'm only
seeing 64MB,
2.6 gives:
BIOS-provided physical RAM map:
BIOS-88: 0000000000000000 - 000000000009f000 (usable)
BIOS-88: 0000000000100000 - 00000000040ffc00 (usable)
64MB LOWMEM available
2.4 gives:
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000e0000 - 0000000000100000 type 5
BIOS-e820: 0000000000100000 - 000000000ff00000 (usable)
BIOS-e820: 000000000ff00000 - 0000000010000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec00400 type 6
BIOS-e820: 00000000fee00000 - 00000000fee00400 type 7
BIOS-e820: 00000000fff00000 - 0000000100000000 type 5
So is this 2.6 just being more fussy about the contents of the e820 that
my "BIOS" is supplying and falling back to the old style detection?
Dave.
--
David Airlie, Software Engineer
http://www.skynet.ie/~airlied / airlied at skynet.ie
pam_smb / Linux DECstation / Linux VAX / ILUG person
next reply other threads:[~2003-12-19 5:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-19 5:04 Dave Airlie [this message]
2003-12-19 8:31 ` William Lee Irwin III
2003-12-22 17:41 ` Randy.Dunlap
2003-12-22 17:56 ` William Lee Irwin III
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