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[Launchpad Bug Tracker <1883929@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1883929

Title:
  Upgrade from X/O -> B/Q breaks pci_devices in mysql for SR-IOV

Status in OpenStack nova-compute charm:
  Expired
Status in OpenStack Compute (nova):
  Expired

Bug description:
  After upgrade from xenial/ocata to bionic/queens SR-IOV instance
  creation (--vnic-type direct) fails with missing devices:

  The pci_devices mysql table if filled with wrong PCI entries, that do
  not exist on the server. Restarting nova-compute and nova-cloud-
  controller services did not fix (rediscover) the proper PCI devices.

  Related errors:

  2020-06-17 12:55:19.556 1182599 WARNING nova.pci.utils [req-76b21329-b364-4999-ac86-8c729cb91ac0 - - - - -] No net device was found for VF 0000:d8:05.0: PciDeviceNotFoundById: PCI device 0000:d8:05.0 not found
  2020-06-17 12:55:19.603 1182599 WARNING nova.pci.utils [req-76b21329-b364-4999-ac86-8c729cb91ac0 - - - - -] No net device was found for VF 0000:d8:05.1: PciDeviceNotFoundById: PCI device 0000:d8:05.1 not found
  2020-06-17 12:55:19.711 1182599 WARNING nova.pci.utils [req-76b21329-b364-4999-ac86-8c729cb91ac0 - - - - -] No net device was found for VF 0000:d8:04.7: PciDeviceNotFoundById: PCI device 0000:d8:04.7 not found

  Error instance creation:

  {u'message': u'Device 0000:d8:04.4 not found: could not access /sys/bus/pci/devices/0000:d8:04.4/config: No such file or directory', u'code': 500, u'details': u'Traceback (most recent call last):\n  File "/usr/lib/python2.7/dist-packa
  ges/nova/compute/manager.py", line 1863, in _do_build_and_run_instance\n    filter_properties, request_spec)\n  File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2143, in _build_and_run_instance\n    instance_uuid=instance.uuid, reason=six.text_type(e))\
  nRescheduledException: Build of instance ec163abf-9c7a-460a-9512-4915f47af6b9 was re-scheduled: Device 0000:d8:04.4 not found: could not access /sys/bus/pci/devices/0000:d8:04.4/config: No such file or directory\n', u'created': u'2020-06-17T11:46:11Z'

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