Bug 2002434

Summary:	CRI-O leaks some children PIDs
Product:	OpenShift Container Platform	Reporter:	Peter Hunt <pehunt>
Component:	Node	Assignee:	Peter Hunt <pehunt>
Node sub component:	CRI-O	QA Contact:	Sunil Choudhary <schoudha>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	medium
Priority:	high	CC:	aos-bugs, miminar
Version:	4.10
Target Milestone:	---
Target Release:	4.10.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	2003197 (view as bug list)		Environment:
Last Closed:	2022-03-10 16:08:57 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:
Bug Blocks:	2003197

Description Peter Hunt 2021-09-08 19:47:10 UTC

Description of problem:
Occasionally, CRI-O may leak a child pid of a process it creates. These situations are weird and tough to reproduce. The most common one is if systemd fails to move conmon to the conmon cgroup for some reason. 

I don't have a great reproducer, but this is related to https://bugzilla.redhat.com/show_bug.cgi?id=1994444 (though branched away to allow for other bugs to be investigated there).

Version-Release number of selected component (if applicable):
All released CRI-O versions

Comment 1 Peter Hunt 2021-09-10 13:29:31 UTC

PR merged

Comment 3 Peter Hunt 2021-09-14 16:55:32 UTC

we need a variation of https://github.com/cri-o/cri-o/pull/5306 first

Comment 5 Peter Hunt 2021-09-14 20:05:43 UTC

PR merged

Comment 7 Sunil Choudhary 2021-10-27 11:04:42 UTC

I see this is tough to reproduce. Verifying it based on sanity checks on 4.10.0-0.nightly-2021-10-25-190146

Comment 10 errata-xmlrpc 2022-03-10 16:08:57 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 (Moderate: OpenShift Container Platform 4.10.3 security update), 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/RHSA-2022:0056