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[Eric Xie <1855883@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Description
===========
We setup OpenStack env on aarch64 KylinOS.
Failed to live migrate instance cause of 'This operating system kernel does not  support vITS migration'.

Steps to reproduce
==================
1. Setup OpenStack on aarch64 servers with openstack-helm
2. Live migrate instance from compute02 to compute03

Expected result
===============
Success, instance locate on compute03

Actual result
=============
Failed, instnace locate on compute02


Environment
===========
1. Exact version of OpenStack you are running. See the following
stable/rocky
# apt list --installed |egrep "libvirt|qemu"
ipxe-qemu/now 1.0.0+git-20180124.fbe8c52d-0ubuntu2.2~cloud0 all [installed,local]
ipxe-qemu-256k-compat-efi-roms/now 1.0.0+git-20150424.a25a16d-0ubuntu2~cloud0 all [installed,local]
libvirt-bin/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
libvirt-clients/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
libvirt-daemon/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
libvirt-daemon-system/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
libvirt0/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
qemu/now 1:2.11+dfsg-1ubuntu7.15~cloud1 arm64 [installed,local]

# uname -a
Linux compute03 4.4.131-20190726.kylin.server-generic #kylin SMP Tue Jul 30 16:44:09 CST 2019 aarch64 aarch64 aarch64 GNU/Linux

2. Which hypervisor did you use?
libvirt+kvm

Logs & Configs
==============
nova-compute:
File "/var/lib/openstack/local/lib/python2.7/site-packages/libvirt.py", line 1745, in migrateToURI3
    if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self)
libvirtError: internal error: unable to execute QEMU command 'migrate': This operating system kernel does not support vITS migration

libvirt:
2019-12-07 05:34:34.820+0000: 57546: error : qemuMonitorJSONCheckError:392 : internal error: unable to execute QEMU command 'migrate': This operating system kernel does not support vITS migration
2019-12-07 05:34:35.226+0000: 57546: error : virNetClientProgramDispatchError:177 : internal error: qemu unexpectedly closed the monitor: 2019-12-07T05:34:29.355638Z qemu-system-aarch64: Not a migration stream
2019-12-07T05:34:29.355781Z qemu-system-aarch64: load of migration failed: Invalid argument

** Affects: nova
     Importance: Undecided
     Assignee: Eric Xie (eric-xie)
         Status: New

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https://bugs.launchpad.net/bugs/1855883

Title:
  can not migrate serve on aarch64

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========
  We setup OpenStack env on aarch64 KylinOS.
  Failed to live migrate instance cause of 'This operating system kernel does not  support vITS migration'.

  Steps to reproduce
  ==================
  1. Setup OpenStack on aarch64 servers with openstack-helm
  2. Live migrate instance from compute02 to compute03

  Expected result
  ===============
  Success, instance locate on compute03

  Actual result
  =============
  Failed, instnace locate on compute02

  
  Environment
  ===========
  1. Exact version of OpenStack you are running. See the following
  stable/rocky
  # apt list --installed |egrep "libvirt|qemu"
  ipxe-qemu/now 1.0.0+git-20180124.fbe8c52d-0ubuntu2.2~cloud0 all [installed,local]
  ipxe-qemu-256k-compat-efi-roms/now 1.0.0+git-20150424.a25a16d-0ubuntu2~cloud0 all [installed,local]
  libvirt-bin/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
  libvirt-clients/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
  libvirt-daemon/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
  libvirt-daemon-system/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
  libvirt0/now 4.0.0-1ubuntu8.11~cloud0 arm64 [installed,local]
  qemu/now 1:2.11+dfsg-1ubuntu7.15~cloud1 arm64 [installed,local]

  # uname -a
  Linux compute03 4.4.131-20190726.kylin.server-generic #kylin SMP Tue Jul 30 16:44:09 CST 2019 aarch64 aarch64 aarch64 GNU/Linux

  2. Which hypervisor did you use?
  libvirt+kvm

  Logs & Configs
  ==============
  nova-compute:
  File "/var/lib/openstack/local/lib/python2.7/site-packages/libvirt.py", line 1745, in migrateToURI3
      if ret == -1: raise libvirtError ('virDomainMigrateToURI3() failed', dom=self)
  libvirtError: internal error: unable to execute QEMU command 'migrate': This operating system kernel does not support vITS migration

  libvirt:
  2019-12-07 05:34:34.820+0000: 57546: error : qemuMonitorJSONCheckError:392 : internal error: unable to execute QEMU command 'migrate': This operating system kernel does not support vITS migration
  2019-12-07 05:34:35.226+0000: 57546: error : virNetClientProgramDispatchError:177 : internal error: qemu unexpectedly closed the monitor: 2019-12-07T05:34:29.355638Z qemu-system-aarch64: Not a migration stream
  2019-12-07T05:34:29.355781Z qemu-system-aarch64: load of migration failed: Invalid argument

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