Bug 1998329

Summary:	ovn-controller crash - Process 775194 (ovn-controller) of user 0 dumped core.#012#012Stack trace of thread 8:#012#0 0x000055fa865f5aa1 n/a (/usr/bin/ovn-controller)
Product:	Red Hat Enterprise Linux Fast Datapath	Reporter:	Matt Flusche <mflusche>
Component:	ovn2.13	Assignee:	OVN Team <ovnteam>
Status:	CLOSED WONTFIX	QA Contact:	Jianlin Shi <jishi>
Severity:	high	Docs Contact:
Priority:	high
Version:	RHEL 8.0	CC:	ctrautma, jiji, mmichels, ralongi
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-07-28 17:14:32 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:

Description Matt Flusche 2021-08-26 20:12:26 UTC

Description of problem:
This environment had been very stable for several months then instance creations were failing/slow/retrying.  Upon investigation we found that ovn-controller had crashed and was in a defunct state on the system(s).  The ovn_controller container was still running but no logging; we don't believe any instances could be created after the fault.

crash from /var/log/messages


Aug 17 01:01:30 HOSTNAME setroubleshoot[35520]: SELinux is preventing (coredump) from remount access on the filesystem . For complete SELinux messages run: sealert -l 603f49ff-3068-4629-b399-b92abd7963d9
Aug 17 01:01:30 HOSTNAME platform-python[35520]: SELinux is preventing (coredump) from remount access on the filesystem .#012#012*****  Plugin catchall (100. confidence) suggests   **************************#012#012If you believe that (coredump) should be allowed remount access on the  filesystem by default.#012Then you should report this as a bug.#012You can generate a local policy module to allow this access.#012Do#012allow this access for now by executing:#012# ausearch -c '(coredump)' --raw | audit2allow -M my-coredump#012# semodule -X 300 -i my-coredump.pp#012
Aug 17 01:01:30 HOSTNAME systemd-coredump[35517]: Process 775194 (ovn-controller) of user 0 dumped core.#012#012Stack trace of thread 8:#012#0  0x000055fa865f5aa1 n/a (/usr/bin/ovn-controller)

Version-Release number of selected component (if applicable):
ovn2.13-20.12.0-85.el8fdp.x86_64

How reproducible:
unknown - ovn-controller running for several months without issues.

Steps to Reproduce:
1. unknown
2.
3.

Additional info:
Will provide additional details in privates comments

Comment 3 Mark Michelson 2023-07-28 17:14:32 UTC

Closing this issue. It's been a couple of years, plus this is reported against a version of OVN that is now old and unsupported.