Ubuntu
linux package

KVM: fix PMU chained counter on ARM64

  1. Kinetic (22.10)
  2. Bug #2002319
Bug #2002319 reported by Thadeu Lima de Souza Cascardo
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Confirmed
Undecided
Unassigned
Kinetic
Won't Fix
Medium
Unassigned

Bug Description

[Impact]
kvm-unit-tests of PMU chained counter will fail as KVM does not behave like the hardware implementation.

[Test case]
Run kvm-unit-tests pmu-chained-counters test.

[Potential regression]
PMU on KVM guests on ARM64 may misbehave.

Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

Upstream commit bead02204e9806807bb290137b1ccabfcb4b16fd is likely necessary.

Changed in linux (Ubuntu Kinetic):
importance: Undecided → Medium
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Missing required logs.

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 2002319

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.

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in linux (Ubuntu Kinetic):
status: New → Incomplete
Thadeu Lima de Souza Cascardo (cascardo)
Changed in linux (Ubuntu Kinetic):
status: Incomplete → Confirmed
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Utkarsh Gupta (utkarsh) wrote :

Ubuntu 22.10 (Kinetic Kudu) has reached end of life, so this bug will not be fixed for that specific release.

Changed in linux (Ubuntu Kinetic):
status: Confirmed → Won't Fix
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