Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.13 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:

Once testing of the upstream kernel is complete, please mark this bug as

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.13-rc4

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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  Random system lock up

Status in linux package in Ubuntu:

Bug description:
  Over the last several kernel upgrades, my system has been locking up
  at random times. Some times it will run for hours without locking up
  and other times it will lock up within 5 minutes of booting.

  This happens when I am browsing the internet, and it doesn't seem to
  be anything specific. At times I can watch full screen YouTube videos,
  and others time just a regular window. The last lockup was just now
  while browsing a page on the Ubuntu Forums.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: linux-image-4.11.0-12-generic 4.11.0-12.17
  ProcVersionSignature: Ubuntu 4.11.0-12.17-generic 4.11.12
  Uname: Linux 4.11.0-12-generic x86_64
  ApportVersion: 2.20.6-0ubuntu4
  Architecture: amd64
   /dev/snd/controlC0:  cariboo    1362 F.... pulseaudio
  CurrentDesktop: XFCE
  Date: Mon Jul 31 12:45:33 2017
  InstallationDate: Installed on 2017-07-12 (18 days ago)
  InstallationMedia: Xubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170712)
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. Hub
   Bus 001 Device 003: ID 04f2:b446 Chicony Electronics Co., Ltd 
   Bus 001 Device 002: ID 276d:1119  
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: TOSHIBA Satellite C50-B
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.11.0-12-generic.efi.signed 
root=UUID=3761b276-a029-42c9-9b8e-d345ae543443 ro quiet splash vt.handoff=7
   linux-restricted-modules-4.11.0-12-generic N/A
   linux-backports-modules-4.11.0-12-generic  N/A
   linux-firmware                             1.167
   0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/11/2014
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: 1.70
  dmi.board.asset.tag: *
  dmi.board.name: ZBWAA
  dmi.board.vendor: TOSHIBA
  dmi.board.version: 1.00
  dmi.chassis.asset.tag: *
  dmi.chassis.type: 10
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.product.name: Satellite C50-B
  dmi.product.version: PSCMLC-02Y00T
  dmi.sys.vendor: TOSHIBA

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