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[dino99 <1246247@xxxxxxxxxxxxxxxxxx>]

Testing back rc6 (3.12.0-0) also show that libahci error : see dmesg.0
joined

** Attachment added: "dmesg.0"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1246247/+attachment/3896316/+files/dmesg.0

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https://bugs.launchpad.net/bugs/1246247

Title:
  [trusty] [3.12 rc7] [    1.024928] libahci: module verification
  failed: signature and/or required key missing - tainting kernel

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Get that error logged on Trusty i386 with the latest 3.12.0.1 kernel
  on that fresh installation:

  [    1.024928] libahci: module verification failed: signature and/or
  required key missing - tainting kernel

  As its a fresh installation, neither intel-microcode nor iucode-tool
  are installed.

  Question: could it be also related to that other report ?
  https://bugs.launchpad.net/ubuntu/raring/+source/util-linux/+bug/1012081
  --- 
  ApportVersion: 2.12.6-0ubuntu1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  oem        1695 F.... pulseaudio
   /dev/snd/pcmC0D0p:   oem        1695 F...m pulseaudio
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=0a9ca7f0-6eeb-4b21-b70f-670fa600de16
  InstallationDate: Installed on 2013-10-25 (4 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20131021.1)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
   
   eth1      no wireless extensions.
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 003 Device 002: ID 046d:c50e Logitech, Inc. Cordless Mouse Receiver
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  MachineType: ASUSTEK COMPUTER INC P5W DH Deluxe
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-1-generic root=UUID=83f51130-24a6-4486-9284-f8d6700df293 ro
  ProcVersionSignature: Ubuntu 3.12.0-1.3-generic 3.12.0-rc7
  RelatedPackageVersions:
   linux-restricted-modules-3.12.0-1-generic N/A
   linux-backports-modules-3.12.0-1-generic  N/A
   linux-firmware                            1.117
  RfKill:
   
  Tags:  trusty
  Uname: Linux 3.12.0-1-generic i686
  UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 07/22/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 3002
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5W DH Deluxe
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr3002:bd07/22/2010:svnASUSTEKCOMPUTERINC:pnP5WDHDeluxe:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5WDHDeluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: P5W DH Deluxe
  dmi.product.version: System Version
  dmi.sys.vendor: ASUSTEK COMPUTER INC

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