Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751212AbZAEWcd (ORCPT ); Mon, 5 Jan 2009 17:32:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751297AbZAEWcY (ORCPT ); Mon, 5 Jan 2009 17:32:24 -0500 Received: from hera.kernel.org ([140.211.167.34]:38978 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750823AbZAEWcY (ORCPT ); Mon, 5 Jan 2009 17:32:24 -0500 Message-ID: <49628A54.10403@kernel.org> Date: Mon, 05 Jan 2009 14:31:48 -0800 From: Yinghai Lu User-Agent: Thunderbird 2.0.0.18 (X11/20081112) MIME-Version: 1.0 To: david@lang.hm CC: Ingo Molnar , Cyrill Gorcunov , Jiri Slaby , Andi Kleen , LKML Subject: Re: early exception error References: <20090102174845.GD5372@localhost> <20090102203058.GH5372@localhost> <20090103161052.GB11093@localhost> <20090103190316.GB7367@localhost> <20090103212426.GC7367@localhost> <496001A3.1040201@gmail.com> <20090104112919.GC7632@localhost> <86802c440901051355o60bef5bai2a33ea5f7e4dc5f7@mail.gmail.com> <496289E3.6010407@kernel.org> In-Reply-To: <496289E3.6010407@kernel.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2851 Lines: 71 Yinghai Lu wrote: > david@lang.hm wrote: >> On Mon, 5 Jan 2009, Yinghai Lu wrote: >> >>> Can you send out boot log with working kernel before 2.6.28? >>> >>> need to look at the e820 table. >> >> here is the 32 bit kernel I'm running now (from dmesg ) >> >> Linux version 2.6.25.14 (root@dlang) (gcc version 3.3.6) #1 SMP PREEMPT >> Mon Aug 4 18:22:50 PDT 2008 >> BIOS-provided physical RAM map: >> BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) >> BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) >> BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) >> BIOS-e820: 0000000000100000 - 000000004cff0000 (usable) >> BIOS-e820: 000000004cff0000 - 000000004cfff000 (ACPI data) >> BIOS-e820: 000000004cfff000 - 000000004d000000 (ACPI NVS) >> BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved) >> BIOS-e820: 0000000100000000 - 0000000180000000 (usable) >> Warning only 4GB will be used. >> Use a HIGHMEM64G enabled kernel. >> 3200MB HIGHMEM available. >> 896MB LOWMEM available. >> Scan SMP from c0000000 for 1024 bytes. >> Scan SMP from c009fc00 for 1024 bytes. >> Scan SMP from c00f0000 for 65536 bytes. >> found SMP MP-table at [c00ff780] 000ff780 >> Entering add_active_range(0, 0, 1048576) 0 entries of 256 used >> Zone PFN ranges: >> DMA 0 -> 4096 >> Normal 4096 -> 229376 >> HighMem 229376 -> 1048576 >> Movable zone start PFN for each node >> early_node_map[1] active PFN ranges >> 0: 0 -> 1048576 >> On node 0 totalpages: 1048576 >> DMA zone: 32 pages used for memmap >> DMA zone: 0 pages reserved >> DMA zone: 4064 pages, LIFO batch:0 >> Normal zone: 1760 pages used for memmap >> Normal zone: 223520 pages, LIFO batch:31 >> HighMem zone: 6400 pages used for memmap >> HighMem zone: 812800 pages, LIFO batch:31 >> Movable zone: 0 pages used for memmap > > > BIOS-provided physical RAM map: > BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) > BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) > BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) > BIOS-e820: 0000000000100000 - 000000004cff0000 (usable) > BIOS-e820: 000000004cff0000 - 000000004cfff000 (ACPI data) > BIOS-e820: 000000004cfff000 - 000000004d000000 (ACPI NVS) > BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved) > BIOS-e820: 0000000100000000 - 0000000180000000 (usable) > > and for pci mem route: node0 [0, 2g), node1 is [4g, 6g) > > and e820 said only 3g can be used... [0, 1g), and [4g, 6g) > > please check if you can change HW memhole setup to 3g instead 2g. in BIOS, to get 1g back. YH -- 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/