Public bug reported:
Description: kernel: Add CPUMF extended counter set for new IBM z17
machine
Symptom: Extended counter set not exported in /sysfs
Problem: The extended counter set is not exported
when the kernel is booted.
Reproduction: Run command ls -l /sys/devices/cpum_cf/events | wc -l.
If the output is not 106, the extended counter set is
missing.
Solution: Export the extended counter set data in /sysfs
when the kernel is booted.
Upstream-ID: df194f57de7136b94bf25d2dce1da765b6c13654
Author: <[email protected]>
Component: kernel
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: New
** Tags: architecture-s39064 bugnameltc-213841 severity-high
targetmilestone-inin---
** Tags added: architecture-s39064 bugnameltc-213841 severity-high
targetmilestone-inin---
** Changed in: ubuntu
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/2114258
Title:
[UBUNTU 24.04] Kernel: Add CPUMF extended counter set for z17
Status in linux package in Ubuntu:
New
Bug description:
Description: kernel: Add CPUMF extended counter set for new IBM z17
machine
Symptom: Extended counter set not exported in /sysfs
Problem: The extended counter set is not exported
when the kernel is booted.
Reproduction: Run command ls -l /sys/devices/cpum_cf/events | wc -l.
If the output is not 106, the extended counter set is
missing.
Solution: Export the extended counter set data in /sysfs
when the kernel is booted.
Upstream-ID: df194f57de7136b94bf25d2dce1da765b6c13654
Author: <[email protected]>
Component: kernel
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