'PEBS disabled due to CPU errata' is logged at boot time.
Issue
- What do these messages mean and why are they logged?
- If it is harmful, please let me know workaround.
Nov 25 10:39:07 xxxxxxxx kernel: PEBS disabled due to CPU errata.
Nov 25 10:39:07 xxxxxxxx kernel: Performance Events: PEBS fmt1+, SandyBridge events, Intel PMU driver.
- I get this message:
kernel: core: PEBS disabled due to CPU errata, please upgrade microcode
kernel: core: PMU erratum BJ122, BV98, HSD29 workaround disabled, HT off
Environment
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
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