Public bug reported:

Seen here:

http://logs.openstack.org/37/522537/20/check/legacy-tempest-dsvm-
multinode-live-
migration/8de6e74/logs/subnode-2/libvirt/qemu/instance-00000002.txt.gz

2018-04-05T21:48:38.205752Z qemu-system-x86_64: -chardev 
pty,id=charserial0,logfile=/dev/fdset/1,logappend=on: char device redirected to 
/dev/pts/0 (label charserial0)
warning: TCG doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5]
2018-04-05T21:48:43.153268Z qemu-system-x86_64: VQ 0 size 0x80 Guest index 
0x12c inconsistent with Host index 0x134: delta 0xfff8
2018-04-05T21:48:43.153288Z qemu-system-x86_64: Failed to load virtio-blk:virtio
2018-04-05T21:48:43.153292Z qemu-system-x86_64: error while loading state for 
instance 0x0 of device '0000:00:04.0/virtio-blk'
2018-04-05T21:48:43.153347Z qemu-system-x86_64: load of migration failed: 
Operation not permitted
2018-04-05 21:48:43.198+0000: shutting down, reason=crashed

And in the n-cpu logs on the other host:

http://logs.openstack.org/37/522537/20/check/legacy-tempest-dsvm-
multinode-live-
migration/8de6e74/logs/screen-n-cpu.txt.gz#_Apr_05_21_48_43_257541

There is a related Red Hat bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1450524

The CI job failures are at present using the Pike UCA:

ii  libvirt-bin                         3.6.0-1ubuntu6.2~cloud0

ii  qemu-system-x86                     1:2.10+dfsg-0ubuntu3.5~cloud0

** Affects: nova
     Importance: Medium
         Status: Confirmed


** Tags: libvirt live-migration

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https://bugs.launchpad.net/bugs/1761798

Title:
  live migration intermittently fails in CI with "VQ 0 size 0x80 Guest
  index 0x12c inconsistent with Host index 0x134: delta 0xfff8"

Status in OpenStack Compute (nova):
  Confirmed

Bug description:
  Seen here:

  http://logs.openstack.org/37/522537/20/check/legacy-tempest-dsvm-
  multinode-live-
  migration/8de6e74/logs/subnode-2/libvirt/qemu/instance-00000002.txt.gz

  2018-04-05T21:48:38.205752Z qemu-system-x86_64: -chardev 
pty,id=charserial0,logfile=/dev/fdset/1,logappend=on: char device redirected to 
/dev/pts/0 (label charserial0)
  warning: TCG doesn't support requested feature: CPUID.01H:ECX.vmx [bit 5]
  2018-04-05T21:48:43.153268Z qemu-system-x86_64: VQ 0 size 0x80 Guest index 
0x12c inconsistent with Host index 0x134: delta 0xfff8
  2018-04-05T21:48:43.153288Z qemu-system-x86_64: Failed to load 
virtio-blk:virtio
  2018-04-05T21:48:43.153292Z qemu-system-x86_64: error while loading state for 
instance 0x0 of device '0000:00:04.0/virtio-blk'
  2018-04-05T21:48:43.153347Z qemu-system-x86_64: load of migration failed: 
Operation not permitted
  2018-04-05 21:48:43.198+0000: shutting down, reason=crashed

  And in the n-cpu logs on the other host:

  http://logs.openstack.org/37/522537/20/check/legacy-tempest-dsvm-
  multinode-live-
  migration/8de6e74/logs/screen-n-cpu.txt.gz#_Apr_05_21_48_43_257541

  There is a related Red Hat bug:

  https://bugzilla.redhat.com/show_bug.cgi?id=1450524

  The CI job failures are at present using the Pike UCA:

  ii  libvirt-bin                         3.6.0-1ubuntu6.2~cloud0

  ii  qemu-system-x86                     1:2.10+dfsg-0ubuntu3.5~cloud0

To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1761798/+subscriptions

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