Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756143AbZDRXKv (ORCPT ); Sat, 18 Apr 2009 19:10:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753324AbZDRXKl (ORCPT ); Sat, 18 Apr 2009 19:10:41 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:52511 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753280AbZDRXKk (ORCPT ); Sat, 18 Apr 2009 19:10:40 -0400 Date: Sat, 18 Apr 2009 16:04:08 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Yinghai Lu cc: Ingo Molnar , Jesse Barnes , "H. Peter Anvin" , Andrew Morton , Thomas Gleixner , "linux-kernel@vger.kernel.org" , linux-pci@vger.kernel.org, yannick.roehlly@free.fr Subject: Re: [PATCH] x86/pci: make pci_mem_start to be aligned only -v4 In-Reply-To: <49EA57C4.1000603@kernel.org> Message-ID: References: <49E00E9F.8030605@kernel.org> <49E4F6D6.6030709@kernel.org> <49E4F71F.10107@kernel.org> <49E52A7A.4070607@kernel.org> <49E52D3F.1090206@kernel.org> <20090416093152.6605612d@hobbes> <20090416165640.GA13927@elte.hu> <49E76864.9060309@kernel.org> <20090416172803.GB16618@elte.hu> <49E7916C.7050701@kernel.org> <49E99054.6050208@kernel.org> <49EA57C4.1000603@kernel.org> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2033 Lines: 49 On Sat, 18 Apr 2009, Yinghai Lu wrote: > > with > [ 0.000000] BIOS-provided physical RAM map: > [ 0.000000] BIOS-e820: 0000000000000100 - 0000000000097400 (usable) > [ 0.000000] BIOS-e820: 0000000000097400 - 00000000000a0000 (reserved) > [ 0.000000] BIOS-e820: 0000000000100000 - 00000000b7fa0000 (usable) > [ 0.000000] BIOS-e820: 00000000b7fae000 - 00000000b7fb0000 (usable) > [ 0.000000] BIOS-e820: 00000000b7fb0000 - 00000000b7fbe000 (ACPI data) > [ 0.000000] BIOS-e820: 00000000b7fbe000 - 00000000b7ff0000 (ACPI NVS) > [ 0.000000] BIOS-e820: 00000000b7ff0000 - 00000000b8000000 (reserved) > [ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) > [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) > [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fef00000 (reserved) > [ 0.000000] BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved) > [ 0.000000] BIOS-e820: 0000000100000000 - 0000002048000000 (usable) > > got > > 00000100-000973ff : System RAM > 00097400-0009ffff : reserved > 000a0000-000bffff : PCI Bus #00 > 000c0000-000cffff : pnp 00:0c > 000e0000-000fffff : pnp 00:0c > 00100000-b7f9ffff : System RAM > 00200000-00c68f6b : Kernel code > 00c68f6c-01332f7f : Kernel data > 015a6000-01fcaa57 : Kernel bss > 20000000-23ffffff : GART > b7fa0000-b7fadfff : RAM buffer > b7fae000-b7faffff : System RAM > b7fb0000-b7fbdfff : ACPI Tables > b7fbe000-b7feffff : ACPI Non-volatile Storage > b7ff0000-b7ffffff : reserved Hmm. That looks correct to me. We filled in that odd area between b7fa0000-b7fadfff that went unmentioned in the e820 tables. And that _is_ a really odd hole. I wonder what it is all about. But the approach does seem to have done the right thing. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/