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Bug 2181277 - update cpuidle subsystem to Linux v6.3
Summary: update cpuidle subsystem to Linux v6.3
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: kernel
Version: 9.3
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Mark Langsdorf
QA Contact: Erik Hamera
URL:
Whiteboard:
: 2159210 (view as bug list)
Depends On:
Blocks: 2159160 2270421
TreeView+ depends on / blocked
 
Reported: 2023-03-23 14:24 UTC by Mark Langsdorf
Modified: 2024-03-20 09:38 UTC (History)
4 users (show)

Fixed In Version: kernel-5.14.0-346.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2270421 (view as bug list)
Environment:
Last Closed: 2023-11-07 08:43:10 UTC
Type: Bug
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Gitlab redhat/centos-stream/src/kernel centos-stream-9 merge_requests 2651 0 None opened update drivers/cpuidle to match v6.3 2023-06-29 13:31:54 UTC
Red Hat Issue Tracker RHELPLAN-152926 0 None None None 2023-03-23 14:24:58 UTC
Red Hat Product Errata RHSA-2023:6583 0 None None None 2023-11-07 08:43:27 UTC

Description Mark Langsdorf 2023-03-23 14:24:09 UTC 
Partners are requesting that the cpuidle system be updated to match the Linux v6.3 kernel. Backport the changes from kernel v6.0 to v6.3 into the RHEL-9.3 kernel.
Comment 1 Mark Langsdorf 2023-03-23 14:30:54 UTC 
*** Bug 2159210 has been marked as a duplicate of this bug. ***
Comment 6 Erik Hamera 2023-07-26 11:07:02 UTC 
CPU cores are in deep C-states.

# cpupower idle-info
CPUidle driver: intel_idle
CPUidle governor: menu
analyzing CPU 0:

Number of idle states: 5
Available idle states: POLL C1 C1E C3 C6
POLL:
Flags/Description: CPUIDLE CORE POLL IDLE
Latency: 0
Usage: 156
Duration: 3297
C1:
Flags/Description: MWAIT 0x00
Latency: 2
Usage: 10958
Duration: 1659942
C1E:
Flags/Description: MWAIT 0x01
Latency: 10
Usage: 3262
Duration: 902870
C3 (DISABLED) :
Flags/Description: MWAIT 0x10
Latency: 40
Usage: 0
Duration: 0
C6:
Flags/Description: MWAIT 0x20
Latency: 133
Usage: 621772
Duration: 38894934023
Comment 10 Erik Hamera 2023-08-04 13:52:08 UTC 
All regression tests has passed on the Linux 5.14.0-349.el9 kernel.
Comment 14 errata-xmlrpc 2023-11-07 08:43:10 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 (Important: kernel security, bug fix, and enhancement 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/RHSA-2023:6583
Comment 15 Dan Horák 2024-03-20 09:16:15 UTC 
- acking 9.2.0.z backport of commit: 2a31a65337a9 ("powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state") based on IBM's zstream template from https://issues.redhat.com/browse/RHEL-27534

- Mark expressed no objections
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