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*** This bug is a duplicate of bug 1755890 ***
https://bugs.launchpad.net/bugs/1755890
** This bug has been marked a duplicate of bug 1755890
Instances fail to hard reboot when using OpenDaylight
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https://bugs.launchpad.net/bugs/1765530
Title:
VM failed to reboot after compute host reboot in Queens
Status in neutron:
Incomplete
Bug description:
This happens with VM with either tap (vif type ovs), or SRIOV (vif
type hw_veb), or vhostuser (vif type vhostuser) ports in master
(Queens) after nova/virt/libvirt/driver.py code change per
https://git.openstack.org/cgit/openstack/nova/commit/?id=aaf37a26d6caa124f0cc6c3fe21bfdf58ccb8517
per https://bugs.launchpad.net/neutron/+bug/1744361.
This is because the above nova change only un-blocks VM from waiting
network-vif-plugged event for vif type "bridge". The approach taken is
questionable since it is error prone (has to unblock vif type one by
one) and not future safe (new vif type can be added).
We propose either unblocks VM from waiting for network-if-plugged
event for hard reboot completely, this is what we are doing now
locally, or fix the root cause of missing network-if-plugged events in
the host reboot scenario.
For comparison, we have checked Newton, we see exactly the same VM
start up events in Newton, only network-vif-plugged event arrives as
VM expects so VM is able to reboot successfully.
Please review and fix the issue.
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