Bug 1473965 - core: CPUID marked event: 'bus cycles' unavailable
core: CPUID marked event: 'bus cycles' unavailable
Status: NEW
Product: Fedora
Classification: Fedora
Component: kernel-module-thinkpad (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
: ---
: ---
Assigned To: Jason Carpenter
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2017-07-22 16:07 EDT by Henrique Martins
Modified: 2017-08-25 07:38 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
Last Closed:
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)

  None (edit)
Description Henrique Martins 2017-07-22 16:07:00 EDT
Description of problem:
I have this messages in the log after reboot:

core: CPU erratum AAJ80 worked around
core: CPUID marked event: 'bus cycles' unavailable
... version:                3
... bit width:              48
... generic registers:      4
... value mask:             0000ffffffffffff
... max period:             000000007fffffff
... fixed-purpose events:   3
... event mask:             000000070000000f

Is this a problem?  And if not why is it reported?

Version-Release number of selected component (if applicable):
Several of the last few kernels, now at

How reproducible:

Steps to Reproduce:
1. Reboot
2. Look in logs

Actual results:
See above.

Expected results:
Not sure if I should expect those lines or not.

Additional info:
Comment 1 moon300web 2017-08-25 07:38:13 EDT
I have exactly the same in my log.
uname -r = 4.12.8-300.fc26.x86_64

Note You need to log in before you can comment on or make changes to this bug.