Release/update 11.1-p8 introduced so-called "mitigation for speculative
execution vulnerabilities".
In RElease 11.2 these "mitigation" have been removed. What is the reason
for the removal, and specifically why is Security advisory 18:03 still
mentioned in the release notes?
Behaviour with 11.1-p8:
# sysctl hw.ibrs_disable
hw.ibrs_disable: 0
# sysctl hw.ibrs_active
hw.ibrs_active: 1
Behaviour with 11.2 w/ same CPU + microcode:
# sysctl hw.ibrs_disable
hw.ibrs_disable: 0
# sysctl hw.ibrs_active
hw.ibrs_active: 0
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