Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934070AbXHVX1Y (ORCPT ); Wed, 22 Aug 2007 19:27:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1763259AbXHVX1N (ORCPT ); Wed, 22 Aug 2007 19:27:13 -0400 Received: from mga11.intel.com ([192.55.52.93]:8125 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762488AbXHVX1M convert rfc822-to-8bit (ORCPT ); Wed, 22 Aug 2007 19:27:12 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.19,295,1183359600"; d="scan'208";a="120453296" x-mimeole: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Subject: RE: [BUG] 2.6.23-rc3-mm1 Kernel panic - not syncing: DMA: Memory would be corrupted Date: Wed, 22 Aug 2007 16:27:09 -0700 Message-ID: <617E1C2C70743745A92448908E030B2A023B2FD5@scsmsx411.amr.corp.intel.com> In-Reply-To: <20070822231111.GD89849@sgi.com> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [BUG] 2.6.23-rc3-mm1 Kernel panic - not syncing: DMA: Memory would be corrupted Thread-Index: AcflEb2dJHPmm0gxTCCh+Z81Lcy/wQAAZ71A References: <46CC48FD.4000607@linux.vnet.ibm.com> <20070822091959.aa38fd3e.akpm@linux-foundation.org> <20070822172541.GA8058@bingen.suse.de> <46CC811C.9010600@linux.vnet.ibm.com> <617E1C2C70743745A92448908E030B2A023B2D39@scsmsx411.amr.corp.intel.com> <46CCB79E.7070109@linux.vnet.ibm.com> <617E1C2C70743745A92448908E030B2A023B2F6A@scsmsx411.amr.corp.intel.com> <20070822231111.GD89849@sgi.com> From: "Luck, Tony" To: "Jeremy Higdon" Cc: "Kamalesh Babulal" , "Andi Kleen" , "Andrew Morton" , , "Balbir Singh" , X-OriginalArrivalTime: 22 Aug 2007 23:27:10.0670 (UTC) FILETIME=[F68996E0:01C7E513] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 635 Lines: 16 > The more ioc's you have, the more space you will use. Default SW IOTLB allocation is 64MB ... how much should we see used per ioc? Kamelesh: You could try increasing the amount of sw iotlb space available by booting with a swiotlb=131072 argument (argument value is the number of 2K slabs to allocate ... 131072 would give you four times as much space as the default allocation). -Tony - 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/