Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.18 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:
'kernel-bug-exists-upstream'.

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


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.3

** Package changed: linux-signed (Ubuntu) => linux (Ubuntu)

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

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

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1787529

Title:
  login causes watchdog cpu lockup

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Immediately after login watchdog soft-lock cpu (x) occurs. Attempted
  different desktop environment, reinstalling and reconfiguring lightdm,
  logging in from shell and updating. Nothing that I've tried has able
  to get me logged into a desktop environment since I get a CPU lockup
  before then. Attempting to shutdown from shell also results in
  unexpected behavior. 'sudo shutdown -a now' results in a black screen
  and unresponsive keyboard, I'm forced to hardboot.

  Distributor ID: Ubuntu
  Description: Ubuntu 18.04.1 LTS
  Release: 18.04
  Codename: bionic

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-32-generic 4.15.0-32.35
  ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
  Uname: Linux 4.15.0-32-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: amd64
  Date: Fri Aug 17 01:35:44 2018
  InstallationDate: Installed on 2018-08-17 (0 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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