Hi all,
I have two hosts. Host1 run services of controller/compute/network, and host2 run services of compute. The network type is vlan. When creating port with direct type and booting a vm using this port on host2, the vm works well. But when create the vm on host1 using same way, the vm state is error. And the nova-compute log says:

ERROR nova.pci.stats [req-4af9b36d-8a0c-43d5-8535-fbf9e8d1b857 06172a48a7254dda934a729f4a58d2ec 894880b2f31046d7b8a83bc3783df070 - - -] Failed to allocate PCI devices for instance. Unassigning devices back to pools. This should not happen, since the scheduler should have accurate information, and allocation during claims is controlled via a hold on the compute node semaphore

  Any suggestion will be grateful.
  Thanks.

  Yu


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