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[Benjamin Zeller <1580943@xxxxxxxxxxxxxxxxxx>]

This kern.log also contains a few of them

** Attachment added: "kern.log.4.gz"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1580943/+attachment/4661229/+files/kern.log.4.gz

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https://bugs.launchpad.net/bugs/1580943

Title:
  Kernel is very unstable on Dell XPS15 (model 2014)

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  The system is halted on my machine in different scenarios:

  1) Running debootstrap, the oops happens when chroot tries to mount a kernel filesystem from the host
  2) Running ubuntu-emulator create from the Ubuntu SDK IDE: http://pastebin.ubuntu.com/16373613/

  3) USB devices are disconnected sometimes, they are immediately
  reconnected but when a ubuntu phone is attached chances are high the
  system might hang as well

  I will attach more logs as soon as I hit the problem again

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-22-generic 4.4.0-22.39
  ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC3:  zbenjamin   3703 F.... pulseaudio
   /dev/snd/controlC2:  zbenjamin   3703 F.... pulseaudio
   /dev/snd/controlC1:  zbenjamin   3703 F.... pulseaudio
   /dev/snd/controlC0:  zbenjamin   3703 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu May 12 11:36:15 2016
  HibernationDevice: RESUME=UUID=ffa1bf0f-220e-4288-9b84-9970818474fc
  InstallationDate: Installed on 2016-03-15 (57 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160307)
  MachineType: Dell Inc. XPS 15 9530
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic.efi.signed root=UUID=b09b103f-4a2d-4347-8844-6892dcb781ae ro i915.semaphores=0 i915.enable_rc6=0
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-22-generic N/A
   linux-backports-modules-4.4.0-22-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/16/2014
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A06
  dmi.board.name: XPS 15 9530
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A06
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: Not Specified
  dmi.modalias: dmi:bvnDellInc.:bvrA06:bd07/16/2014:svnDellInc.:pnXPS159530:pvrA06:rvnDellInc.:rnXPS159530:rvrA06:cvnDellInc.:ct8:cvrNotSpecified:
  dmi.product.name: XPS 15 9530
  dmi.product.version: A06
  dmi.sys.vendor: Dell Inc.

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