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: