libvirt evacute on ppcle failed with IDE controllers are unsupported for this QEMU binary or machine type

[Christine Wang]

This is on a liberty release
In evacuate, the image_meta is empty. So, we would get the architecture information from host.

However, in the nova/virt/libvirt/blockinfo.py get_disk_bus_for_device_type, we didn't have the bus type default for ppcle or ppcle64. So, it ended up using IDE for cdrom or disk.

So, the evacuate would failed with

2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] rv = execute(f, *args, **kwargs)
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 122, in execute
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] six.reraise(c, e, tb)
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] File "/usr/lib/python2.7/site-packages/eventlet/tpool.py", line 80, in tworker
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] rv = meth(*args, **kwargs)
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] File "/usr/lib64/python2.7/site-packages/libvirt.py", line 996, in createWithFlags
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] if ret == -1: raise libvirtError ('virDomainCreateWithFlags() failed', dom=self)
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f] libvirtError: unsupported configuration: IDE controllers are unsupported for this QEMU binary or machine type
2015-10-26 22:23:51.413 103536 ERROR nova.compute.manager [instance: 3c8f8d24-ebcf-425a-b50d-4ddc08e7b92f]

The if guestarch in (arch.PPC, arch.PPC64, arch.S390, arch.S390X): line needs to be updated to
if guestarch in (arch.PPC, arch.PPC64, arch.PPCLE, arch.PPC64LE, arch.S390, arch.S390X):

 nova/virt/libvirt/blockinfo.py get_disk_bus_for_device_type
...
    elif virt_type in ("qemu", "kvm"):
        if device_type == "cdrom":
            guestarch = libvirt_utils.get_arch(image_meta)
            if guestarch in (arch.PPC, arch.PPC64, arch.S390, arch.S390X):
                return "scsi"
            else:
                return "ide"
        elif device_type == "disk":
            return "virtio"
        elif device_type == "floppy":
            return "fdc"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/240612

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/240612
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=9fd7e646e73d15a50dbb6e2585b0f8761a50d636
Submitter: Jenkins
Branch: master

commit 9fd7e646e73d15a50dbb6e2585b0f8761a50d636
Author: Christine Wang <email address hidden>
Date: Fri Oct 30 16:21:12 2015 -0500

    Add ppcle architectures to libvirt blockinfo

    Instance evacuate would fail on hypervisor running with PPCLE or
    PPC64LE architectures due to bus or device typewas set to IDE.
    It would failed with 'IDE controllers are unsupported' error.
    Update get_disk_bus_for_device_type to include support for PPCLE
    and PPC64LE architecture to set bus or device type to scsi.

    Closes-Bug: #1511539
    Change-Id: Id65588321b3e3429b81a0bf4a4bac3899b38008f

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/nova 13.0.0.0b1 development milestone.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/293550

[Matt Riedemann (mriedem)]

stable/liberty backport: https://review.openstack.org/#/c/293550/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/293550
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=2a6c77ed6aac70c225e3e93dca1bd6197c3dbc28
Submitter: Jenkins
Branch: stable/liberty

commit 2a6c77ed6aac70c225e3e93dca1bd6197c3dbc28
Author: Christine Wang <email address hidden>
Date: Fri Oct 30 16:21:12 2015 -0500

    Add ppcle architectures to libvirt blockinfo

    Instance evacuate would fail on hypervisor running with PPCLE or
    PPC64LE architectures due to bus or device typewas set to IDE.
    It would failed with 'IDE controllers are unsupported' error.
    Update get_disk_bus_for_device_type to include support for PPCLE
    and PPC64LE architecture to set bus or device type to scsi.

    Closes-Bug: #1511539
    Change-Id: Id65588321b3e3429b81a0bf4a4bac3899b38008f
    (cherry picked from commit 9fd7e646e73d15a50dbb6e2585b0f8761a50d636)

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/nova 12.0.3 release.