** Changed in: linux (Ubuntu Jammy)
Status: Incomplete => Fix Committed
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https://bugs.launchpad.net/bugs/1998106
Title:
Fix AMD-PState driver for Genoa CPU
Status in linux package in Ubuntu:
Incomplete
Status in linux-oem-5.14 package in Ubuntu:
Invalid
Status in linux-oem-5.17 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Invalid
Status in linux-oem-5.14 source package in Focal:
Fix Committed
Status in linux-oem-5.17 source package in Focal:
Invalid
Status in linux source package in Jammy:
Fix Committed
Status in linux-oem-5.14 source package in Jammy:
Invalid
Status in linux-oem-5.17 source package in Jammy:
Fix Committed
Status in linux source package in Kinetic:
Incomplete
Status in linux-oem-5.14 source package in Kinetic:
Invalid
Status in linux-oem-5.17 source package in Kinetic:
Invalid
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://lore.kernel.org/linux-
pm/20221117073541.3350600-1-perry.y...@amd.com/T/#m4616d857ca472937d1e1d31131ddc3261fa17b2a
[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.
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