[Bug 1777674] Re: Ubuntu 18.04 hangs at "kvm: exiting hardware virtualization" on AMD servers with DVD

[Michael Reed]

There was test kernel for this issue that was never tested.  This issue
has not been seen in Jammy nor Nobel to this point so I am going to
close the bug.  If this issue returns, please reopen the bug.

** Changed in: dellserver
       Status: New => Won't Fix

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Title:
  Ubuntu 18.04 hangs at "kvm: exiting hardware virtualization" on AMD
  servers with DVD

Status in dellserver:
  Won't Fix
Status in linux package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Invalid
Status in linux source package in Bionic:
  Confirmed

Bug description:
  Ubuntu 18.04 hangs at "kvm: exiting hardware virtualization" on AMD
  servers when under graceful reboot stress for 12hrs.

  * This hand is observed only when Onboard SATA DVD Drive is connected.

  * Not seen with Ubuntu 16.04.4 (HWE kernel v4.13)

  * Seen with Ubuntu 18.04 (4.15.0-23-generic, 4.15.0-20-generic)

  Steps:
  Setup a DellEMC AMD server with Onboard DVD Drive, install Ubuntu 18.04 and start reboot stress
  After a few reboots, observe that the machine hangs at "kvm: exiting hardware virtualization" and does not proceed with reboot cycles.

  Only physical reset helps in continuing the reboot test.

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