On Tue, Sep 5, 2017 at 2:45 PM, Linus Torvalds <torva...@linux-foundation.org> wrote: > > I have bisected a bit deeper, and the pcid code is definitely in that > bisection window still. But are a fair number of other commits (about > 160 right now)
Now down to 18. And one of those 18 is commit 10af6235e0d3 ("x86/mm: Implement PCID based optimization: try to preserve old TLB entries using PCID"), which I guess is where the problem might actually start showing up if it is pcid. I'll continue to bisect rather than just test "nopcid", because I want to get that bisection result regardless. Linus