Regression: missing Zen 3 data fabric perf events
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux-hwe-5.15 (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
With 5.13.0-52-generic, "perf list" includes the following events:
data fabric:
dram_
[Unit: amd_df]
dram_
[Unit: amd_df]
dram_
[Unit: amd_df]
dram_
[Unit: amd_df]
...
With 5.15.0-46-generic the events are missing. This is occurring on Epyc 7003 processors (family 25, model 1, stepping 1).
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-tools-
ProcVersionSign
Uname: Linux 5.15.0-46-generic x86_64
NonfreeKernelMo
ApportVersion: 2.20.11-
Architecture: amd64
CasperMD5CheckR
Date: Wed Aug 24 12:08:11 2022
SourcePackage: linux-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)