On Fri, 2006-12-01 at 15:32 +0100, Arjan van de Ven wrote: > > > > The idea is that we want our users to be able to use hyper-threading, > > but we don't want it on by default. > > Hi, > > can I ask why not?
I'm just basing this on the history of the patch, which preceeds me, so if this is incorrect, please don't blame me for misinformation :) The original patch claims that hyper-threading opens the user up to some sort of security risk involving hardware limitations in protecting memory across the threads. I can't recall all the details. If this is wrong, I'm more than happy to just drop the whole damn patch. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
