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Bug 1894654

Summary:	hcn-init.service fails on unsupported hardware
Product:	[Fedora] Fedora	Reporter:	Adam Williamson <awilliam>
Component:	powerpc-utils	Assignee:	Vasant Hegde <hegdevasant>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	34	CC:	bugproxy, dan, dwmw2, fkocina, hegdevasant, jaromir.capik, jcajka, karsten, ksinny, rdossant, tony, vebil96253
Target Milestone:	---
Target Release:	---
Hardware:	ppc64le
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		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:
Bug Blocks:	1071880

Description Adam Williamson 2020-11-04 17:17:00 UTC

hcn-init.service is installed and enabled by default on all Power installs, it seems, as part of powerpc-utils. But it doesn't actually work on all Power systems. On the openQA worker hosts and guests, it fails immediately on startup:

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Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org systemd[1]: Starting hybrid virtual network scan and config...
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org hcnmgr[21385]: [DEBUG]:hcnscan enter
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org hcnmgr[21385]: =======================10-29-2020 17:10:04============================
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org hcnmgr[21385]: [ERROR]:hcnscan:error code 1, platform is not supported
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org systemd[1]: hcn-init.service: Main process exited, code=exited, status=1/FAILURE
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org systemd[1]: hcn-init.service: Failed with result 'exit-code'.
Oct 29 17:10:04 openqa-p09-worker01.iad2.fedoraproject.org systemd[1]: Failed to start hybrid virtual network scan and config.

===

meaning you have a failed service right out of the box, which isn't ideal. It might be good if this could be treated as a non-error case, somehow; perhaps hcnmgr could get a custom exit code for "platform is not supported" (it's not clear if 1 is used for anything else) and the systemd service could treat that as a normal exit, for instance.

Comment 1 Vasant Hegde 2020-11-06 05:02:15 UTC

Thanks for the bug report. I have asked `hcnmgr` command developer to look into this issue. We will keep you updated.

-Vasant

Comment 2 Dan Horák 2020-11-06 10:16:13 UTC

(In reply to Vasant Hegde from comment #1)
> Thanks for the bug report. I have asked `hcnmgr` command developer to look
> into this issue. We will keep you updated.

I believe this could be solved by using existing systemd mechanism - "conditional activation" based on detected hw

Comment 3 IBM Bug Proxy 2020-11-06 16:31:06 UTC

------- Comment From Mingming.Cao 2020-11-06 11:28 EDT-------
(In reply to comment #4)
> (In reply to Vasant Hegde from comment #1)
> > Thanks for the bug report. I have asked `hcnmgr` command developer to look
> > into this issue. We will keep you updated.
>
> I believe this could be solved by using existing systemd mechanism -
> "conditional activation" based on detected hw

Right, looking into this path now

yes, for hcn-init service , it should just print out platform is not supported, or, even better, not scheduled to run.

Comment 4 Ben Cotton 2021-02-09 16:17:03 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

Comment 5 Marionowers 2021-03-19 07:01:40 UTC

It is totally new for all of you and also for me because I just don't have time to make https://budgiebasics.com/when-do-budgie-chicks-leave-the-nest/, It is really mean to always start to finding and telling us all those ways which are be important for us to start it with a totally new pattern.