Bug 2182816

Summary:	rt-setup overwrites "kernel.hung_task_panic" and "kernel.hung_task_timeout_secs" values even if those values are already set. [rhel-7.9.z]
Product:	Red Hat Enterprise Linux 7	Reporter:	John Kacur <jkacur>
Component:	rt-setup	Assignee:	John Kacur <jkacur>
Status:	CLOSED ERRATA	QA Contact:	Shizhao Chen <shichen>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.9	CC:	amaumene, bhu, lgoncalv, mstowell, qzhao
Target Milestone:	rc	Keywords:	Triaged, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Last Closed:	2023-07-18 08:25:21 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description John Kacur 2023-03-29 18:17:24 UTC

This bug was initially created as a copy of Bug #2168478

I am copying this bug because: 

To bring to rhel-7.9z

Description of problem:

The script on post section of rt-setup.spec overwrites "kernel.hung_task_panic" and "kernel.hung_task_timeout_secs" values even if those values are already set.


The script checks /etc/sysctl.conf and if it finds "kernel.hung_task_panic" and "kernel.hung_task_timeout_secs" are already set, it does not set "kernel.hung_task_panic" and "kernel.hung_task_timeout_secs".

But the script doesn't check files under /etc/sysctl.d. If users set "kernel.hung_task_panic" and "kernel.hung_task_timeout_secs" values inside the file under /etc/sysctl.d directory, those values are ignored, and the script overwrite those values.


Version-Release number of selected component (if applicable):

Name: rt-setup
Version: 2.1
Release: 4%{?dist}
License: GPL+
Summary: Setup RHEL-RT environment details
Group: System Environment/Base
Source: rt-setup-%{version}.tar.bz2

How reproducible:

consistent.


Steps to Reproduce:

1. Set "kernel.hung_task_panic" values to 1 inside the file under /etc/sysctl.d directory.
2. Install this package that overwrites "kernel.hung_task_panic" value.


Actual results:

"kernel.hung_task_panic" sets as "0"


Expected results:

"kernel.hung_task_panic" sets as "1"



Additional info:

Comment 18 errata-xmlrpc 2023-07-18 08:25:21 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 (rt-tests bug fix 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/RHBA-2023:4155