After an in-place OpenStack Platform major upgrade, live migration fails with the following error when the source node has not been rebooted and the target node has:
Unacceptable CPU info: CPU doesn't have compatibility
- Red Hat OpenStack Platform after major upgrade.
- Red Hat Enterprise Linux (RHEL) 7 on overcloud nodes.
linux-firmware-20170606-58.gitc990aae.el7_4.noarchinstalled as part of the upgrade.
- Non-rebooted source compute node is running microcode version 59 and rebooted target is running microcode version 58.
IBPBCPU model is in use on the source node but not the target node.
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