On Wed, 21 Nov 2018, Tim Chen wrote: > > Is it reverted in Linus's tree? If not, then anything that comes "later > > on" will not apply here, right? > > > > I see the thread asking about this, but I got really conflicting > > messages here, and now it's in all of the latest releases, and no > > testing seems to have uncovered issues. Is it just a "slow down" > > problem? > > Greg, > > It could be a big slow down in excess of 20% for some applications. > And cross sibling Spectre v2 attack is quite hard to pull off. > > So till we have the accompanying patchset that only apply STIBP on processes > that really need it instead of universally, it should be withheld from > stable. Agreed; it will be trivially reintroduced with the rest, once it's ready. It's being built on top of that patch. Thanks, -- Jiri Kosina SUSE Labs
