On 02/17/18 18:12, François Patte wrote: > I just updated f27 and the new installed kernel > (4.15.3-300.fc27.x86_64), sends these messages at boot time: > > kernel: Spectre V2 : Mitigation: Full generic retpoline > kernel: Spectre V2 : System may be vulnerable to spectre v2 > > What do they mean and what to do? Waiting for next kernel update?
It may mean that your particular CPU is not fully protected by the recent kernel patches. Cat the files in /sys/devices/system/cpu/vulnerabilities FWIW, my systems have .... [egreshko@acer vulnerabilities]$ cat meltdown Mitigation: PTI [egreshko@acer vulnerabilities]$ cat spectre_v1 Mitigation: __user pointer sanitization [egreshko@acer vulnerabilities]$ cat spectre_v2 Mitigation: Full generic retpoline -- A motto of mine is: When in doubt, try it out
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