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FS#73475 - cpuidle_enter_state uses 100% of one CPU core

Attached to Project: Arch Linux
Opened by George Stelle (stelleg) - Sunday, 23 January 2022, 16:44 GMT
Last edited by Jan Alexander Steffens (heftig) - Friday, 25 February 2022, 14:55 GMT
Task Type Bug Report
Category Kernel
Status Closed
Assigned To Jan Alexander Steffens (heftig)
Architecture All
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No


Description: kernel cpuidle_enter_state pegging a cpu core and makes system unresponsive

Attached is a perf report from running `sudo perf record -g -a sleep 30`, as well as an htop screenshot, and dmesg output.

falling back to linux-lts 5.15.16-1 works as a temporary fix

Additional info:
* package version(s)
linux 5.16.2.arch1-1

* config and/or log files etc.
no boot flags
Intel(R) Core(TM) i5-6440HQ CPU

* link to upstream bug report, if any
couldn't find upstream bug report

Steps to reproduce:
boot kernel on listed CPU. intel speedstep enabled by bios, not sure if that's relevant.
This task depends upon

Closed by  Jan Alexander Steffens (heftig)
Friday, 25 February 2022, 14:55 GMT
Reason for closing:  Fixed
Comment by George Stelle (stelleg) - Friday, 25 February 2022, 14:51 GMT
The issue appears to be fixed as of 5.16.11, so I'm guessing it was reported upstream and I just missed it.