Fix AMD-PState driver for Genoa CPU
Bug #1998106 reported by
Paolo Pisati
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Incomplete
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
Unassigned | ||
Kinetic |
Fix Released
|
Undecided
|
Unassigned | ||
linux-oem-5.14 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned | ||
Jammy |
Invalid
|
Undecided
|
Unassigned | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-5.17 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
Unassigned | ||
Kinetic |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
During AMD Genoa development, the datacenter team identified performance regressions that were root caused in the amd-pstate driver. A first round of fixes already landed upstream (v6.1-rc7) in the amd-pstate driver, and should be backported to all the affected kernels.
[Fix]
Backport the upstream amd-pstate fixes:
https://<email address hidden>
[Regression potential]
Clean cherry-picks of already upstream (v6.1-rc7) fixes, impact a single driver (amd-pstate) and the new mode (passive) is disabled by default.
CVE References
Changed in linux-oem-5.17 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux-oem-5.14 (Ubuntu Jammy): | |
status: | New → Invalid |
Changed in linux-oem-5.14 (Ubuntu Kinetic): | |
status: | New → Invalid |
Changed in linux-oem-5.17 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.17 (Ubuntu Jammy): | |
status: | New → Fix Committed |
Changed in linux-oem-5.17 (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux-oem-5.14 (Ubuntu Focal): | |
status: | New → Fix Committed |
Changed in linux-oem-5.14 (Ubuntu): | |
status: | New → Invalid |
Changed in linux (Ubuntu Jammy): | |
status: | Incomplete → Fix Committed |
Changed in linux (Ubuntu Kinetic): | |
status: | Incomplete → Fix Committed |
tags: |
added: verification-done-jammy removed: verification-needed-jammy |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1998106
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.