Meta Uncovers RDSEED Architectural Issue In AMD EPYC Zen 5 CPUs

Phoronix Oct 16, 2025

Over the years we have seen various workarounds like disabling RDSEED for select AMD CPUs due to hardware bugs and early on in the Zen days were also some RdRand issues due to different problems. It turns out the newest AMD EPYC 5th Gen "Turin" processors have a new RDSEED issue...

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