It's a huge fail. One can apparently use speculative execution to create memory
leaks. Some Intel processors without speculative execution - such as the
Atom CPUs (including the embedded ones) - won't be affected,
whereas the bigger,
fancier i3, i5, i7, and Xeon processors will. It's unclear on which side of the
line the Atom C2000 series (which had out-of-order but not
speculative execution)
will lie.
Hopefully, when FreeBSD develops kernel patches to address the bug, it will
exempt the unaffected processors. (I do a lot of work for embedded
Atoms, and hope
that they will not be slowed by patches intended for CPUs that actually need
them.)
--Brett Glass
At 06:56 PM 1/2/2018, Joey Kelly wrote:
On Tuesday, January 02, 2018 08:52:27 PM Mike Tancsa wrote:
> I am guessing this will impact FreeBSD as well ?
>
> http://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/
No way around it. It's hardware FAIL, and ignoring it isn't an option since
it's apparently a huge hole.
--
Joey Kelly
Minister of the Gospel and Linux Consultant
http://joeykelly.net
504-239-6550
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