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Bug 1825334

Summary: ovs-vswitchd crashes with segmentation fault due to packet loop in OVN
Product: Red Hat Enterprise Linux Fast Datapath Reporter: Dumitru Ceara <dceara>
Component: ovn2.13Assignee: Dumitru Ceara <dceara>
Status: CLOSED ERRATA QA Contact: Jianlin Shi <jishi>
Severity: urgent Docs Contact:
Priority: urgent    
Version: FDP 20.CCC: afazekas, avishnoi, ctrautma, dceara, echaudro, eolivare, fhallal, jhsiao, jishi, jlibosva, kzhang, mmichels, nusiddiq, ovs-qe, ralongi, rsafrono, tredaelli, yinxu
Target Milestone: ---Keywords: Regression
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1821185 Environment:
Last Closed: 2020-05-26 14:07:18 UTC Type: ---
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: 1821185    
Bug Blocks:    

Comment 2 Numan Siddique 2020-04-20 15:48:08 UTC 
The patch to fix this is merged upstream - https://github.com/ovn-org/ovn/commit/5341969d3b397cc93c5ee98a77468625f0ca9df4
Comment 7 Jianlin Shi 2020-04-22 01:15:26 UTC 
Hi Dumitru,

could you give some suggestions on how to trigger the loop issue with ovn? thanks
Comment 9 Jianlin Shi 2020-05-06 08:33:25 UTC 
as no reproducer for now, set verified per comment 8
Comment 11 errata-xmlrpc 2020-05-26 14:07:18 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:2317
Comment 12 Jakub Libosvar 2020-06-04 12:37:08 UTC 
*** Bug 1840078 has been marked as a duplicate of this bug. ***
Comment 13 Dumitru Ceara 2020-06-09 07:17:33 UTC 
(In reply to Jianlin Shi from comment #7)
> Hi Dumitru,
> 
> could you give some suggestions on how to trigger the loop issue with ovn?
> thanks

Hi Jianlin,

Unfortunately I couldn't find an easy way to replicate the issue without explicitly lowering stack limit.

Regards,
Dumitru