OpenBSD disables Intel's hyperthreading due to security concerns
So... they "strongly suspect" (but don't know and haven't shown) there may be a Spectre-class bug enabled by current HT implementations and improving their scheduler is hard, so they'll pre-emptively disable HT outright on Intel CPUs now and others in the near future?I'm not an OpenBSD user (and glad for it, if this is anything to go by), but I'm curious - is this really how they operate, or does this decision stand out?