Bug 1558188

Summary:	"upcall_cb failure: ukey installation fails" message in OVS DPDK with openvswitch-2.6.1-26
Product:	Red Hat OpenStack	Reporter:	Andreas Karis <akaris>
Component:	openvswitch	Assignee:	Eelco Chaudron <echaudro>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Ofer Blaut <oblaut>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	10.0 (Newton)	CC:	aconole, akaris, apevec, asoni, atelang, atheurer, chrisw, dhill, echaudro, fleitner, jmelvin, jraju, kiyyappa, ktraynor, majopela, marjones, mflusche, oblaut, ovs-team, pmannidi, rcernin, rhos-maint, sandyada, skramaja, srevivo, vchundur
Target Milestone:	---	Keywords:	Triaged, ZStream
Target Release:	10.0 (Newton)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1550124	Environment:
Last Closed:	2018-04-06 11:50:13 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:	1547790, 1550124, 1553786
Bug Blocks:	1549893

Comment 2 Eelco Chaudron 2018-03-20 08:53:24 UTC

Looking at the data we see that the fix for replacing the revalidated flow is being hit:

upcall_ukey_replace        0.0/sec     0.000/sec        0.0086/sec   total: 601

We also see that we hit a "real" duplicate upcall:

handler_duplicate_upcall   0.0/sec     0.000/sec        0.0000/sec   total: 1

This is where the log message gets logged for. However, from the logging/debugging available in the code it's not possible to determine the actual cause.

If we would have a reproducer a debug build can be made to narrow down the cause.

Comment 11 Eelco Chaudron 2018-04-06 11:50:13 UTC

Will close BZ for now, until we get debug info, however, this does not look like a real issue.

Comment 12 Red Hat Bugzilla 2023-09-18 00:13:21 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days