Intel Skylake/Kaby Lake processors: broken hyper-threading warning

["DAVID FARBER" <dfarber () me com>]

Begin forwarded message:

> From: Lauren Weinstein <lauren () vortex com>
> Date: June 26, 2017 at 12:11:03 AM EDT
> To: nnsquad () nnsquad org
> Subject: [ NNSquad ] Intel Skylake/Kaby Lake processors: broken hyper-threading warning
>
>
> Intel Skylake/Kaby Lake processors: broken hyper-threading warning
>
> https://lists.debian.org/debian-devel/2017/06/msg00308.html
>
>      This warning advisory is relevant for users of systems with
>    the Intel processors code-named "Skylake" and "Kaby Lake".
>    These are: the 6th and 7th generation Intel Core processors
>    (desktop, embedded, mobile and HEDT), their related server
>    processors (such as Xeon v5 and Xeon v6), as well as select
>    Intel Pentium processor models. TL;DR: unfixed Skylake and
>    Kaby Lake processors could, in some situations, dangerously
>    misbehave when hyper-threading is enabled.  Disable
>    hyper-threading immediately in BIOS/UEFI to work around the
>    problem.  Read this advisory for instructions about an
>    Intel-provided fix.
>
> - - -
>
> As a practical matter, I expect most users with affected CPUs won't
> know about it and won't want to screw around in the BIOS to disable
> hyperthreading ... but just in case ...



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