AMD CPU type 0x70f40 (ext family 0xa) unknown
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
rr (Ubuntu) |
Fix Released
|
Medium
|
Marco Trevisan (Treviño) | ||
Jammy |
Fix Released
|
Medium
|
Marco Trevisan (Treviño) | ||
Mantic |
Fix Released
|
Medium
|
Marco Trevisan (Treviño) | ||
Noble |
Fix Released
|
Medium
|
Marco Trevisan (Treviño) |
Bug Description
[ Impact ]
Running rr in Phonenix AMD APU (Ryzen 7840U) as in latest generation of AMD ThinkPad fails with
[FATAL ./src/PerfCount
It was fixed upstream via https:/
[ Test case ]
With a such CPU run:
rr record true
It should record the process execution as expected, in case it may mention that some further tuning is required for Zen CPUs:
On Zen CPUs, rr will not work reliably unless you disable the hardware
SpecLockMap optimization.
For instructions on how to do this, see
https:/
[ Regression Potential ]
Not really known since it's just adding a case for the CPU family.
In theory it may make other CPUs of the same family not work in the same way.
Changed in rr (Ubuntu Jammy): | |
status: | New → Triaged |
Changed in rr (Ubuntu Noble): | |
status: | New → Triaged |
Changed in rr (Ubuntu Jammy): | |
importance: | Undecided → Medium |
Changed in rr (Ubuntu Noble): | |
importance: | Undecided → Medium |
Changed in rr (Ubuntu Jammy): | |
assignee: | nobody → Marco Trevisan (Treviño) (3v1n0) |
Changed in rr (Ubuntu Noble): | |
assignee: | nobody → Marco Trevisan (Treviño) (3v1n0) |
description: | updated |
tags: | added: patch |
Changed in rr (Ubuntu Noble): | |
status: | In Progress → Fix Committed |
Changed in rr (Ubuntu): | |
status: | In Progress → Fix Committed |
Changed in rr (Ubuntu Mantic): | |
status: | In Progress → Fix Committed |
Changed in rr (Ubuntu Jammy): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done removed: verification-needed |
This bug was fixed in the package rr - 5.7.0-2ubuntu1
---------------
rr (5.7.0-2ubuntu1) oracular; urgency=medium
* debian/patches: Add support for AMD Phoenix Zen 4 CPU (LP: #2065141)
-- Marco Trevisan (Treviño) <email address hidden> Wed, 08 May 2024 09:02:10 +0200