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SubjectRE: Linux Kernel Microcode Question

> > Is it worth it?

> In most cases, yes. It's zero cost. You don't waste RAM, as the
> microcode gets loaded into small RAM areas on the CPU that are
> otherwise unused.

It is at least theoeretically possible that a microcode update might cause
an operation that's normally done very quickly (in dedicated hardware) to be
done by a slower path (microcode operations) to fix a bug in the dedicated
hardware that is very obscure and very unlikely to ever bother you. However,
I have never heard of even a single confirmed instance where this happened.


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