Commit f8e49358daee625da435cd5dc4836d20792368e4 [1] seems to responsible for this bug, as it changed kernel module version check: It used to only warn the user if it wasn't able to retrieve module version, whereas it now forces the agent to exit.
[1] https://github.com/openstack/neutron/commit/f8e49358daee625da435cd5dc4836d20792368e4
Commit f8e49358daee625 da435cd5dc4836d 20792368e4 [1] seems to responsible for this bug, as it changed kernel module version check: It used to only warn the user if it wasn't able to retrieve module version, whereas it now forces the agent to exit.
[1] https:/ /github. com/openstack/ neutron/ commit/ f8e49358daee625 da435cd5dc4836d 20792368e4