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[Stuart Bishop <1553450@xxxxxxxxxxxxxxxxxx>]

apport information

** Attachment added: "ProcCpuinfo.txt"
   https://bugs.launchpad.net/bugs/1553450/+attachment/4589017/+files/ProcCpuinfo.txt

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https://bugs.launchpad.net/bugs/1553450

Title:
  4.4.0-9 and 4.4.0-10 hang on boot

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  The two latest kernel updates for Xenial fail to boot, both hanging at
  or just after mounting the initial ramdisk. 4.4.0-8 works fine. Both
  4.4.0-9 and 4.4.0-10 hang.

  Hardware is a new HP Pavillion 15 Gaming Laptop, hp pavillion gaming 15-ak008tx.
  --- 
  ApportVersion: 2.20-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  stub       3565 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  HibernationDevice: RESUME=UUID=dc964c84-fa1f-4004-8a4c-c9626c524a43
  InstallationDate: Installed on 2016-02-26 (7 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160224)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 8087:0a2a Intel Corp. 
   Bus 001 Device 003: ID 0bda:57c4 Realtek Semiconductor Corp. 
   Bus 001 Device 002: ID 1bcf:0005 Sunplus Innovation Technology Inc. Optical Mouse
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: HP HP Pavilion Gaming Notebook
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-8-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro noprompt persistent quiet splash
  ProcVersionSignature: Ubuntu 4.4.0-8.23-generic 4.4.2
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-8-generic N/A
   linux-backports-modules-4.4.0-8-generic  N/A
   linux-firmware                           1.156
  Tags:  xenial
  Uname: Linux 4.4.0-8-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/22/2015
  dmi.bios.vendor: Insyde
  dmi.bios.version: F.54
  dmi.board.asset.tag: Type2 - Board Asset Tag
  dmi.board.name: 80A9
  dmi.board.vendor: HP
  dmi.board.version: 91.18
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnInsyde:bvrF.54:bd09/22/2015:svnHP:pnHPPavilionGamingNotebook:pvrType1ProductConfigId:rvnHP:rn80A9:rvr91.18:cvnHP:ct10:cvrChassisVersion:
  dmi.product.name: HP Pavilion Gaming Notebook
  dmi.product.version: Type1ProductConfigId
  dmi.sys.vendor: HP

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