Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753129Ab1CQJVh (ORCPT ); Thu, 17 Mar 2011 05:21:37 -0400 Received: from mx4-phx2.redhat.com ([209.132.183.25]:53239 "EHLO mx4-phx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751936Ab1CQJVe (ORCPT ); Thu, 17 Mar 2011 05:21:34 -0400 Date: Thu, 17 Mar 2011 05:21:29 -0400 (EDT) From: CAI Qian To: linux-usb@vger.kernel.org Cc: Don Zickus , kexec@lists.infradead.org, linux-kernel@vger.kernel.org Message-ID: <1569207539.482477.1300353689147.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> In-Reply-To: <75962266.482150.1300351616499.JavaMail.root@zmail06.collab.prod.int.phx2.redhat.com> Subject: kdump regression related to usb3 hub update MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.5.5.72] X-Mailer: Zimbra 6.0.9_GA_2686 (ZimbraWebClient - FF3.0 (Linux)/6.0.9_GA_2686) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 22453 Lines: 443 Hello Sarah and others, There is a regression using the latest Sarah's xhci hubs-v3-rebase tree, kdump kernel reset itself (log at the end of email). The first kernel also setup using IOMMU (intel_iommu=on). Removed intel_iommu=on from the kdump kernel parameter alone did not solve the problem. This is only reproducible when the first kernel is using IOMMU. My environment setup is: PCI-E card -> USB3 Disk -> USB3 Hub -> USB3 Disk -> USB2 Hub -> USB2 Disk I have been identified one or a few of the following patches caused the problem but need more time to narrow it down. 288ead45fa6637e959015d055304f521cbbc0575 USB: remove bogus USB_PORT_FEAT_*_SPEED symbols 0eadcc09203349b11ca477ec367079b23d32ab91 usb: USB3.0 ch11 definitions b1a72b70bbb82237b1041c78edee305503f6da31 USB: Remove bitmap #define from hcd.h 50e6c947c6340f7ba81deca99e8a37f458a00e49 USB: Fix usb_add_hcd() checkpatch errors. 0abde136582234dd720270ec3d5aeba69eae4d03 xhci: Rework port suspend structures for limited ports. 8c0d6f920004f065c2571f32b7c28e7f850e9810 xhci: Rename variables and reduce register reads. ba764f4b37e2bcce069f6c9d96b8374ee85257ed USB 3.0 Hub Changes Loading usb-storage.ko module Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. Waiting 8 seconds for driver initialization. usb 7-1: New USB device found, idVendor=046d, idProduct=08af usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 7-2: new low speed USB device number 3 using uhci_hcd usb 7-2: New USB device found, idVendor=0624, idProduct=0307 usb 7-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 7-2: Product: Avocent DSRIQ-USB usb 7-2: Manufacturer: Avocent input: Avocent Avocent DSRIQ-USB as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.0/input/input1 generic-usb 0003:0624:0307.0001: input,hidraw0: USB HID v1.10 Keyboard [Avocent Avocent DSRIQ-USB] on usb-0000:00:1d.2-2/input0 input: Avocent Avocent DSRIQ-USB as /devices/pci0000:00/0000:00:1d.2/usb7/7-2/7-2:1.1/input/input2 generic-usb 0003:0624:0307.0002: input,hidraw1: USB HID v1.10 Mouse [Avocent Avocent DSRIQ-USB] on usb-0000:00:1d.2-2/input1 DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr ffbfb000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear Loading mii.ko module Loading v4l2-compat-ioctl32.ko module Loading mmicrocode: CPU0 sig=0x206c2, pf=0x1, revision=0xc icrocode.ko module DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr ffbfa000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr ffbf9000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr ffbf8000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 402 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 502 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 602 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 702 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 2 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 102 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 202 DMAR:[DMA Write] Request device [0b:00.1] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear DRHD: handling fault status reg 302 DMAR:[DMA Write] Request device [0b:00.0] fault addr fffff000 DMAR:[fault reason 01] Present bit in root entry is clear Initializing cgroup subsys cpuset Linux version 2.6.38-rc5+ .... Thanks. CAI Qian -- 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/