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[Bug 1447053] Re: IO_PAGE_FAULT


Hard to tell, the bug isn't constantly there. But I believe it has
something to do with IOMMU. I disabled this in the BIOS, I will see how
this goes and if the bug is still turning back I will try to boot with a
previous kernel.

Also I wanted to install the new Ubuntu 15.04 to see if this solves the
problem due to new network drivers since 15.04 will be released this
week I guess.

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Status in linux package in Ubuntu:

Bug description:
  Since a couple of weeks I'm experiencing a problem with my
  motherboard. For some reason the network goes randomly offline and I
  get a error messages about AMD-Vi.

  [ 6462.248434] AMD-Vi: Event logged [IO_PAGE_FAULT device=04:00.0
  domain=0x0019 address=0x0000000000003000 flags=0x0050]

  I didn't changed anything except for the internet modem is changed and
  I installed updates as I always do. When using google I see there are
  more people with this problem exactly the same motherboard, I find
  this strange because my pc is almost a year old and I never had this
  problem. Could it be a problem in the kernel of *ubuntu 14.04?

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-49-generic 3.13.0-49.83
  ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17
  Uname: Linux 3.13.0-49-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.10
  Architecture: amd64
   /dev/snd/controlC1:  allard     2282 F.... pulseaudio
                        allard     2467 F.... pulseaudio
   /dev/snd/controlC0:  allard     2282 F.... pulseaudio
                        allard     2467 F.... pulseaudio
  CurrentDesktop: KDE
  Date: Wed Apr 22 11:34:46 2015
  HibernationDevice: RESUME=UUID=96633d31-18c6-4b01-b756-f5f919c43fb4
  InstallationDate: Installed on 2015-03-27 (25 days ago)
  InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
   eth0      no wireless extensions.
   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-49-generic root=UUID=2c77ade3-e2ea-4d88-94d6-e131053f8ac8 ro quiet splash
   linux-restricted-modules-3.13.0-49-generic N/A
   linux-backports-modules-3.13.0-49-generic  N/A
   linux-firmware                             1.127.11
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/02/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 2204
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: A88XM-A
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2204:bd04/02/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnA88XM-A:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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