[installer] add processor.max_cstate=1 to intel kernel cmdline #16371
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Signed-off-by: Xichen Lin <[email protected]>
lguohan
approved these changes
Sep 1, 2023
|
@Xichen96 , do you have master branch pr? |
9 tasks
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This is a fix for PR #6051
The original PR will disable intel idle driver but it cannot limit the max c-state to 1 due to system will fall back to acpi idle driver.
Currently intel_idle.max_cstate=0 is already present, which will disable intel idle driver. With the added option, common idle driver will be disabled as well, so there will not be idle management. This is to prevent a bug that can be triggered by idle instruction on intel platform.
Why I did it
Work item tracking
How I did it
Add the option to installer file beside intel_idle.max_cstate=0
How to verify it
Manually changed kernel boot option to include the new parameter and reboot.
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
20201231.82,20181130.101,20220531.36
Description for the changelog
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)