Comment 2 for bug 1944031

OK, this looks valid. I removed the whole configuration from my testbed, but I can still see the resource providers :

[root@hab-19 devstack]# openstack resource provider list
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+
| uuid | name | generation | root_provider_uuid | parent_provider_uuid |
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+
| cd58f110-a4d8-4968-a7c7-1c434d3ed74b | hab-19.xx.xxx.xxx.xxx.xxxxxx.com | 19 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | None |
| 7853e09b-5f5c-4b79-99c6-a550c56eb7e0 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_5 | 13 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
| 63e40f50-a20f-45e7-8033-96463f9d0968 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_4 | 1 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
| 7752dd12-91ce-4ac6-a3e5-7fd7e32a2557 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_6 | 11 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+
[root@hab-19 devstack]# openstack resource provider usage show 7752dd12-91ce-4ac6-a3e5-7fd7e32a2557
+----------------+-------+
| resource_class | usage |
+----------------+-------+
| VGPU | 1 |
+----------------+-------+
[root@hab-19 devstack]# nova delete test-vgpu
Request to delete server test-vgpu has been accepted.
[root@hab-19 devstack]# vi /etc/nova/nova-cpu.conf
[root@hab-19 devstack]# systemctl restart devstack@n-cpu
[root@hab-19 devstack]# openstack resource provider list
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+
| uuid | name | generation | root_provider_uuid | parent_provider_uuid |
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+
| cd58f110-a4d8-4968-a7c7-1c434d3ed74b | hab-19.xx.xxx.xxx.xxx.xxxxxx.com | 20 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | None |
| 7853e09b-5f5c-4b79-99c6-a550c56eb7e0 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_5 | 13 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
| 63e40f50-a20f-45e7-8033-96463f9d0968 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_4 | 1 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
| 7752dd12-91ce-4ac6-a3e5-7fd7e32a2557 | hab-19.xx.xxx.xxx.xxx.xxxxxx.com_pci_0000_04_00_6 | 12 | cd58f110-a4d8-4968-a7c7-1c434d3ed74b | cd58f110-a4d8-4968-a7c7-1c434d3ed74b |
+--------------------------------------+---------------------------------------------------+------------+--------------------------------------+--------------------------------------+