Intel Fail: OpenBSD disables Intel HyperThreading, Lazy FP State Restore

Georgi Guninski guninski at
Wed Jun 20 22:02:49 PDT 2018

On Wed, Jun 20, 2018 at 07:44:21PM -0400, grarpamp wrote:
Topic:          information disclosure when using HTT
Announced:      2005-05-13
When running on processors supporting Hyper-Threading Technology, it is
possible for a malicious thread to monitor the execution of another
V.   Solution

Disable Hyper-Threading Technology on processors that support it.

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