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VMs with a custom number of virtio queues does not start with a CDROM drive #6401

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OpenNebulaSupport opened this issue Nov 15, 2023 · 1 comment
Closed
3 tasks

VMs with a custom number of virtio queues does not start with a CDROM drive #6401

OpenNebulaSupport opened this issue Nov 15, 2023 · 1 comment
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@paczerny
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Category: Core & System Priority: Normal Sponsored Status: Accepted Type: Bug
Milestone
Release 6.8.1

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@OpenNebulaSupport
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Description
Setting the number of virtio queues does not allow a VM with an attached CDROM

To Reproduce
Adding any CDROM type image and setting up the VIRTIO block and scsi queues fails with the following error

[VMM][E]: DEPLOY: error: Failed to create domain from /var/lib/one//datastores/0/400/deployment.4 error: unsupported configuration: queues attribute in disk driver element is only supported by virtio-blk Could not create domain from /var/lib/one//datastores/... ExitCode: 255

The VM template must have the following sections

...
DISK=[                                                                                                          
  IMAGE="cdrom_image",
  IMAGE_UNAME="oneadmin" ]
...
FEATURES=[
  VIRTIO_BLK_QUEUES="auto",
  VIRTIO_SCSI_QUEUES="auto" ]

Expected behavior
Vm should start with no problems

Details

  • Version 6.8

Additional context

Looks like the problem is because the ide bus (used for CD ROMS) does not allow setting the queues setting

<disk type='file' device='cdrom'>
...
   <target dev='hda' bus='ide'/>
   <driver name='qemu' type='raw' cache='none' discard='unmap' queues='2'/>
</disk>

Progress Status

  • Code committed
  • Testing - QA
  • Documentation (Release notes - resolved issues, compatibility, known issues)
@tinova tinova added this to the Release 6.8.1 milestone Nov 15, 2023
rsmontero added a commit to OpenNebula/docs that referenced this issue Nov 15, 2023
@rsmontero
B OpenNebula/one#6401: Add to resolved issues
24e8ea6
@rsmontero
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Docs

rsmontero added a commit that referenced this issue Nov 16, 2023
@rsmontero
B #6401: Fix virtio-blk queues configuration
9b9f719 
VIRTIO_BLK_QUEUES is only supported for virtio-blk driver (and
vhost-usr-blk). This commits check the DISK is using the right disk
before adding the parameter to the DRIVER.

(cherry picked from commit 0611ffb)
rsmontero added a commit that referenced this issue Mar 11, 2024
@rsmontero
B #6401: Fix virtio-blk queues configuration
0611ffb 
VIRTIO_BLK_QUEUES is only supported for virtio-blk driver (and
vhost-usr-blk). This commits check the DISK is using the right disk
before adding the parameter to the DRIVER.
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Assignees

@paczerny paczerny

Labels
Category: Core & System Priority: Normal Sponsored Status: Accepted Type: Bug
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Milestone
Release 6.8.1
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4 participants
@tinova @rsmontero @paczerny @OpenNebulaSupport