From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 218-101-109-95.dialup.clear.net.nz (218-101-109-95.dialup.clear.net.nz [218.101.109.95]) by smtp2.clear.net.nz (CLEAR Net Mail) with ESMTP id <0HRY00G0XUI7WY@smtp2.clear.net.nz> for linux-mm@kvack.org; Sat, 24 Jan 2004 12:27:45 +1300 (NZDT) Date: Sat, 24 Jan 2004 12:30:29 +1300 From: Nigel Cunningham Subject: Re: Can a page be HighMem without having the HighMem flag set? In-reply-to: <1074828647.12774.212.camel@laptop-linux> Reply-to: ncunningham@users.sourceforge.net Message-id: <1074900629.2024.44.camel@laptop-linux> MIME-version: 1.0 Content-type: multipart/signed; boundary="=-4VKfnMSQv2iyorJObNVr"; protocol="application/pgp-signature"; micalg=pgp-sha1 References: <1074824487.12774.185.camel@laptop-linux> <20040123022617.GY1016@holomorphy.com> <1074828647.12774.212.camel@laptop-linux> Sender: owner-linux-mm@kvack.org Return-Path: To: William Lee Irwin III Cc: Linux Memory Management List-ID: --=-4VKfnMSQv2iyorJObNVr Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi all. At boot I get: <4> BIOS-e820: 0000000000000000 - 000000000009e000 (usable) <4> BIOS-e820: 000000000009e000 - 00000000000a0000 (reserved) <4> BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) <4> BIOS-e820: 0000000000100000 - 00000000efff6500 (usable) <4> BIOS-e820: 00000000efff6500 - 00000000f0000000 (ACPI data) <4> BIOS-e820: 00000000fffb0000 - 0000000100000000 (reserved) <4> BIOS-e820: 0000000100000000 - 0000000400000000 (usable) It's the pages efff6000- which are causing me grief. if I understand things correctly, page_is_ram is returning 0 for those pages, and as a result they get marked reserved and not HighMem by one_highpage_init. I suppose, then, that I need to check for and ignore pages > highstart_pfn where PageHighMem is not set/Reserved is set. (Either okay?). Regards, Nigel --=20 My work on Software Suspend is graciously brought to you by LinuxFund.org. --=-4VKfnMSQv2iyorJObNVr Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQBAEa6VVfpQGcyBBWkRAq8NAJ45nDbYvq/9p7pxcEq8FCRSGdtrPgCfegp8 U88h8bA2bdiBpFNxMA3YK+Y= =R222 -----END PGP SIGNATURE----- --=-4VKfnMSQv2iyorJObNVr-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org