Bug 1225890

Summary:	[tw][Build 20240531] sysctl kernel parameter 'sysctl: cannot stat /proc/sys/kernel/sched_child_runs_first: No such file or directory'
Product:	[openSUSE] openSUSE Tumbleweed	Reporter:	Richard Fan <richard.fan>
Component:	Kernel	Assignee:	openSUSE Kernel Bugs <kernel-bugs>
Status:	NEW ---	QA Contact:	E-mail List <qa-bugs>
Severity:	Normal
Priority:	P5 - None
Version:	Current
Target Milestone:	---
Hardware:	x86-64
OS:	Other
URL:	https://openqa.opensuse.org/tests/4241601/modules/Sysctl/steps/135
Whiteboard:
Found By:	openQA	Services Priority:
Business Priority:		Blocker:	Yes
Marketing QA Status:	---	IT Deployment:	---
Attachments:	automation test result

Description Richard Fan 2024-06-04 06:58:31 UTC

## Description

From tw setup, I can see below error on sysctl test:

# Test messages # Sysctl_kernel_sched_child_runs_first
# failure: 

255 - sysctl: cannot stat /proc/sys/kernel/sched_child_runs_first: No such file or directory

The issue is not seen on sle15sp6 [the int value is '0']

Is it a new kernel feature or a product bug?


## Observation

openQA test in scenario opensuse-Tumbleweed-DVD-x86_64-sys-param-check@64bit fails in
[Sysctl](https://openqa.opensuse.org/tests/4241601/modules/Sysctl/steps/135)

## Test suite description
RAM size is set to 2048, some kernel parameters change with total RAM https://github.com/openSUSE/sys-param-check


## Reproducible

Fails since (at least) Build [20230910](https://openqa.opensuse.org/tests/3565003)


## Expected result

Last good: [20230908](https://openqa.opensuse.org/tests/3562695) (or more recent)


## Further details

Always latest result in this scenario: [latest](https://openqa.opensuse.org/tests/latest?arch=x86_64&distri=opensuse&flavor=DVD&machine=64bit&test=sys-param-check&version=Tumbleweed)

Comment 1 Richard Fan 2024-06-04 06:59:47 UTC

Created attachment 875289 [details]
automation test result