Arch Linux

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FS#73375 - High cpu usage caused by kernel process when upgraded to linux 5.16

Attached to Project: Arch Linux
Opened by William Tang (william0419) - Sunday, 16 January 2022, 04:43 GMT
Last edited by Andreas Radke (AndyRTR) - Friday, 11 February 2022, 20:17 GMT
Task Type Bug Report
Category Kernel
Status Assigned
Assigned To Jan Alexander Steffens (heftig)
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 0%
Votes 0
Private No


There are some kernel process that uses a lot of cpu power after upgrading to linux 5.16. Namely,
- kworker/events_unbond
- kworker/events_power_efficient
See the attached files for demsg output and htop screenshot.

Additional info:
* package: linux 5.16.arch1-1

Steps to reproduce:
Boot up the system and watch the htop output
This task depends upon

Comment by William Tang (william0419) - Monday, 14 February 2022, 02:39 GMT
BTW, I created a bug on linux's Bugzilla website.