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Bug 1615656

Summary:	Nova compute service does not correctly report PFs
Product:	Red Hat OpenStack	Reporter:	PURANDHAR SAIRAM MANNIDI <pmannidi>
Component:	openstack-nova	Assignee:	OSP DFG:Compute <osp-dfg-compute>
Status:	CLOSED WONTFIX	QA Contact:	OSP DFG:Compute <osp-dfg-compute>
Severity:	high	Docs Contact:
Priority:	high
Version:	10.0 (Newton)	CC:	dasmith, eglynn, jhakimra, kchamart, mbooth, pkesavar, pmannidi, rcernin, sbauza, sgordon, smykhail, srevivo, vromanso
Target Milestone:	---	Keywords:	Triaged, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-10-15 10:41:38 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1589796, 1878201
Bug Blocks:

Description PURANDHAR SAIRAM MANNIDI 2018-08-14 01:20:57 UTC

Description of problem:
Nove compute service does not correctly report PFs and ignore few PFs until nova-compute service is restarted

Version-Release number of selected component (if applicable):
Red Hat OpenStack Platform 10

How reproducible:
Intermittently

Steps to Reproduce:
1. Spawn Multiple instances in the compute node with combination of PF + VF per instance.
2. restart nova-compute, delete instances
3. few PFs are not considered and doesn't report the availability during periodic resource audit.

Actual results:
Intermittently Nova fails to consider few PFs and it's corresponding VFs.

Expected results:
Irrespective of  nova-compute restarts, nova-compute should consider the PFs in pci_passthrough_whitelist

Additional info:

Comment 2 Sahid Ferdjaoui 2018-08-14 12:24:57 UTC

It's a know issue. When PFs are attached to guest they are not listed when restarting nova-compute, the workaround is to restart the service.

There is a summary of the issue here; please can you confirm the behavior?

  https://bugzilla.redhat.com/show_bug.cgi?id=1589796#c31

Thanks,
s.

Comment 3 Sahid Ferdjaoui 2018-08-17 12:14:45 UTC

Hello Purandhar,

Any feedback on my last comment?

Thanks,
s.

Comment 6 Matthew Booth 2019-10-15 10:41:38 UTC

I am closing this bug as it has not been addressed for a very long time. Please feel free to reopen if it is still relevant.