[Bug 1891214] Missing required logs.

[Ubuntu Kernel Bot]

This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1891214

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1891214

Title:
  targetcli/LIO needs tcm_vhost and xen-scsiback feature enabled OR
  option disabled

Status in linux package in Ubuntu:
  Incomplete
Status in python-rtslib-fb package in Ubuntu:
  In Progress
Status in qemu package in Ubuntu:
  New

Bug description:
  targetcli-fb was recently included in MAIN and rely on some features
  that aren't available currently in Ubuntu:

  ## TCM VHOST

  /vhost> create
  b'modprobe: FATAL: Module tcm_vhost not found in directory /lib/modules/...

  not enabled in Ubuntu kernels.

  QEMU virtio-scsi feature:

  https://wiki.qemu.org/Features/VirtioSCSI/TCM_Overview

  KERNEL option to be enabled:

  https://cateee.net/lkddb/web-lkddb/TCM_VHOST.html

  KERNEL TCM documentation:

  https://www.kernel.org/doc/html/latest/target/tcmu-design.html

  LIO (LinuxIO) VHOST feature explained:

  http://linux-iscsi.org/wiki/VHost

  ## XEN PVSCSI

  Same happens for XEN:

  https://wiki.xenproject.org/wiki/Paravirtualized_SCSI

  PS: this would I would go for a targetcli fabric module disablement
  instead of enabling the feature.

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