yahoo-eng-team team mailing list archive

[Lance Bragstad <ldbragst@xxxxxxxxxx>]

Public bug reported:

When deploying to a compute node hosted on a PowerKVM system, nova boots
fail to spawn when video type is set to 'cirrus' in the XML definition.
This is the default value set and was a part of this blueprint:

https://blueprints.launchpad.net/nova/+spec/libvirt-video-driver-
selection

and this change:

https://review.openstack.org/#/c/58614/8

When trying to launch an instance, the following can be observed on the
PowerKVM compute node: http://paste.openstack.org/show/62144/

and the XML definition here: http://paste.openstack.org/show/62145/

One possible solution for this would be to detect the architecture of
the compute node and to not default video type to 'cirrus', until
PowerKVM supports cirrus emulation. This is already partially done by
https://review.openstack.org/#/c/66992/10 and can be used in
https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L3211-L3225
without causing issues with the current implementation, as discussed in
#openstack-nova with mriedem, dansmith, and russellb.

** Affects: nova
     Importance: Undecided
         Status: New


** Tags: powerkvm

** Tags added: powerkvm

** Description changed:

- When deploying to a compute node hosted on a PowerKVM system, nova boots fail to spawn when video type is set to 'cirrus' in the XML definition. This is the default value set and was a part of this blueprint:
-  
- https://blueprints.launchpad.net/nova/+spec/libvirt-video-driver-selection
+ When deploying to a compute node hosted on a PowerKVM system, nova boots
+ fail to spawn when video type is set to 'cirrus' in the XML definition.
+ This is the default value set and was a part of this blueprint:
+ 
+ https://blueprints.launchpad.net/nova/+spec/libvirt-video-driver-
+ selection
  
  and this change:
  
  https://review.openstack.org/#/c/58614/8
  
  When trying to launch an instance, the following can be observed on the
  PowerKVM compute node: http://paste.openstack.org/show/62144/
  
  and the XML definition here: http://paste.openstack.org/show/62145/
  
  One possible solution for this would be to detect the architecture of
  the compute node and to not default video type to 'cirrus', until
  PowerKVM supports cirrus emulation. This is already partially done by
  https://review.openstack.org/#/c/66992/10 and can be used in
  https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L3211-L3225
- without causing issues with the current implementation.
+ without causing issues with the current implementation, as discussed in
+ #openstack-nova with mriedem, dansmith, and russellb.

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https://bugs.launchpad.net/bugs/1274367

Title:
  Nova boot on PowerKVM fails when video type is set to 'cirrus'

Status in OpenStack Compute (Nova):
  New

Bug description:
  When deploying to a compute node hosted on a PowerKVM system, nova
  boots fail to spawn when video type is set to 'cirrus' in the XML
  definition. This is the default value set and was a part of this
  blueprint:

  https://blueprints.launchpad.net/nova/+spec/libvirt-video-driver-
  selection

  and this change:

  https://review.openstack.org/#/c/58614/8

  When trying to launch an instance, the following can be observed on
  the PowerKVM compute node: http://paste.openstack.org/show/62144/

  and the XML definition here: http://paste.openstack.org/show/62145/

  One possible solution for this would be to detect the architecture of
  the compute node and to not default video type to 'cirrus', until
  PowerKVM supports cirrus emulation. This is already partially done by
  https://review.openstack.org/#/c/66992/10 and can be used in
  https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L3211-L3225
  without causing issues with the current implementation, as discussed
  in #openstack-nova with mriedem, dansmith, and russellb.

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