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lima
on Jan 7, 2018
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Meltdown and Spectre Linux kernel status
As far as I can tell, the RHEL/CentOS kernel has mitigations not only for Meltdown but also Spectre (using the new MSRs).
Am I right in assuming that Red Hat built their own mitigations, independently from upstream?
unixsurfer
on Jan 11, 2018
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The patches on RedHat 7.4 have impact on performance and capacity for a Load Balancer type of workload, see
https://www.spinics.net/lists/stable/msg209193.html
amluto
on Jan 7, 2018
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It seems like a smallish consortium of poorly coordinated developers built the Spectre mitigation patches. Upstream wasn't involved until a couple days ago.
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Am I right in assuming that Red Hat built their own mitigations, independently from upstream?