Public bug reported:
[Impact]
livemigration of windows 2012 r2 instance with virtio balloon driver
from qemu 2.5(mitaka) to qemu 2.11(queens) is not working properly.
Especially instance keep moving e.g 2.5 -> 2.5 -> 2.11
Then It shows below msg from the 2nd mitaka node.
Migration: [ 94 %]error: internal error: qemu unexpectedly closed the monitor:
2020-09-07T07:45:11.799345Z qemu-system-x86_64: warning: Unknown firmware file
in legacy mode: etc/msr_feature_control
2020-09-07T07:45:12.765618Z qemu-system-x86_64: VQ 2 size 0x80 < last_avail_idx
0x1 - used_idx 0x2
2020-09-07T07:45:12.765642Z qemu-system-x86_64: Failed to load
virtio-balloon:virtio
2020-09-07T07:45:12.765648Z qemu-system-x86_64: error while loading state for
instance 0x0 of device '0000:00:07.0/virtio-balloon'
2020-09-07T07:45:12.766483Z qemu-system-x86_64: load of migration failed:
Operation not permitted
[Test Case]
Deploy 2 mitaka-staging machines kvm host
Deploy 1 queens-staging machines kvm host
Deploy windows 2012r2 guest instance with virtio balloon driver on one
of the mitaka host
migrate it from mitaka to mitaka (it should be ok )
migrate it from mitaka to queens ( it raises error )
TBD
[Regressions]
TBD
[Others]
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: Fix Released
** Affects: qemu (Ubuntu Xenial)
Importance: Undecided
Status: In Progress
** Also affects: qemu (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: qemu (Ubuntu)
Status: New => Fix Released
** Changed in: qemu (Ubuntu Xenial)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1894772
Title:
live migration of windows 2012 r2 instance with virtio balloon driver
fails from mitaka to queens.
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