It means that you have CPUs with incompatible flags or you've got differing kernel versions that expose different flags or you've got differing libvirt versions that expose different flags. You either need to use a lowest common denominator cpu_model or do a cold migration.
From: Karera Tony <tonykarera@gmail.com>
Sent: 01 September 2023 10:13
To: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: Live migration errorHello Team,
CAUTION: This email originates from outside THG
I am trying to migrate instances from one host to another but I am getting this error.
Migration pre-check error: Unacceptable CPU info: CPU doesn't have compatibility. 0 Refer to http://libvirt.org/html/libvirt-libvirt-host.html#virCPUCompareResult (HTTP 400) (Request-ID: req-9dfdfe2e-70fa-481a-bd3d-c2c76a6e93da)
Any idea on how to fix this?
Regards
Tony Karera