Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756958Ab0GGS4N (ORCPT ); Wed, 7 Jul 2010 14:56:13 -0400 Received: from mga03.intel.com ([143.182.124.21]:38762 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753746Ab0GGS4K (ORCPT ); Wed, 7 Jul 2010 14:56:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.53,554,1272870000"; d="scan'208";a="297585844" Subject: Re: [RFC PATCH 1/1] PCI: skip release and reallocation of io port resources From: Suresh Siddha Reply-To: Suresh Siddha To: Jesse Barnes Cc: Andrew Hendry , Yinghai Lu , Linus Torvalds , Ram Pai , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "clemens@ladisch.de" In-Reply-To: <20100707113523.09c2d0e4@virtuousgeek.org> References: <20100630211516.GA25991@us.ibm.com> <20100630235949.GA5120@us.ibm.com> <20100702143515.2896d728@virtuousgeek.org> <4C33B883.6010206@kernel.org> <4C33CF1C.7020803@kernel.org> <20100707113523.09c2d0e4@virtuousgeek.org> Content-Type: text/plain Organization: Intel Corp Date: Wed, 07 Jul 2010 11:55:30 -0700 Message-Id: <1278528930.2852.12.camel@sbs-t61.sc.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.26.3 (2.26.3-1.fc11) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3383 Lines: 89 Andrew, Can you check if this patch resolves your PAT issue? http://marc.info/?l=linux-kernel&m=127833440902862&w=2 thanks, suresh On Wed, 2010-07-07 at 11:35 -0700, Jesse Barnes wrote: > This looks like a different issue, I think the PAT code tracks memtypes > like this. > > Suresh, any changes in this area that might explain this? > > Jesse > > On Wed, 7 Jul 2010 14:28:47 +1000 > Andrew Hendry wrote: > > > Is this the same or related issue? > > > > http://lkml.org/lkml/2010/7/6/108 > > New messages since -rc4, X and graphics really slow after. > > > > [ 1.387013] swapper:1 freeing invalid memtype bf788000-bf789000 > > [ 1.387409] swapper:1 freeing invalid memtype bf789000-bf78a000 > > [ 5.999675] modprobe:548 freeing invalid memtype d0000000-d0040000 > > [ 6.068347] modprobe:548 freeing invalid memtype d0140000-d0150000 > > [ 6.068647] modprobe:548 freeing invalid memtype d0150000-d0160000 > > [ 6.069661] modprobe:548 freeing invalid memtype d0170000-d01f0000 > > [ 6.085969] modprobe:548 freeing invalid memtype d01f0000-d0200000 > > [ 6.087673] modprobe:548 freeing invalid memtype d0210000-d0220000 > > [ 6.087900] modprobe:548 freeing invalid memtype d0220000-d0230000 > > [ 6.088092] modprobe:548 freeing invalid memtype d0230000-d0240000 > > [ 6.088317] modprobe:548 freeing invalid memtype d0240000-d0250000 > > > > > > On Wed, Jul 7, 2010 at 10:49 AM, Yinghai Lu wrote: > > > On 07/06/2010 04:58 PM, Linus Torvalds wrote: > > >> On Tue, Jul 6, 2010 at 4:13 PM, Yinghai Lu wrote: > > >>> > > >>> So you want to use pci=override_bios to reallocate all bios assigned resource include > > >>> peer root buses resources and pci bridge resource and pci devices BAR? > > >> > > >> In a perfect world, we'd never need this at all, but sicne that's not > > >> an option, the second-best alternative might be something like the > > >> following: > > >> > > >> pci=override=off # default > > >> pci=override=conflict # override only on conflicts > > >> pci=override= # clear BIOS allocations for (and any > > >> children, if it's a bus) > > > > > > current: > > > if there is conflict, like pci bridge resources or pci devices resources is not in the scope of peer root bus resource range. > > > or pci devices is not in pci bridge resources range. > > > kernel would reject the resource and try to get new range in parent resource for the children. > > > > > > so current default is overriding the conflicts already. > > > > > > Maybe your conflicts have other meaning? like pci bridge resource size is not big enough? > > > > > > or we can have use > > > > > > pci=override=small_bridge > > > > > > or > > > > > > pci=override=bridges > > > > > > instead? > > > > > > Thanks > > > > > > Yinghai > > > -- > > > 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/ > > > > > > > -- 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/