Public bug reported:

Using 4.13.0-33.36~retpoline4  kernel test kernel from ppa
https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/spectre/.

CPU: AMD Ryzen 7 1700 Eight-Core Processor
Ubuntu: 17.10.

Steps to reproduce (has occurred both times I tried it):
1. Run virsh start <instance name> (or start VM from GUI)
Machine reboots 

Going back to 4.13.0-32 has virsh working again

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Confirmed

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

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https://bugs.launchpad.net/bugs/1747507

Title:
  starting VMs causing retpoline4 to reboot

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Using 4.13.0-33.36~retpoline4  kernel test kernel from ppa
  https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/spectre/.

  CPU: AMD Ryzen 7 1700 Eight-Core Processor
  Ubuntu: 17.10.

  Steps to reproduce (has occurred both times I tried it):
  1. Run virsh start <instance name> (or start VM from GUI)
  Machine reboots 

  Going back to 4.13.0-32 has virsh working again

To manage notifications about this bug go to:
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