On Wed, 2017-04-26 at 22:32 -0700, Paul E. McKenney wrote: > On Thu, Apr 27, 2017 at 06:15:56AM +0200, Mike Galbraith wrote: > > On Wed, 2017-04-26 at 21:11 -0700, Paul E. McKenney wrote: > > > > > This is with srcutree.exp_holdoff set to 25*1000? > > > > Yup. > > And please see below for the trivial patch, just for confirmation. > May I add your Tested-by?
Sure. > diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c > index ccbe1fb84165..65f03bca5b32 100644 > --- a/kernel/rcu/srcutree.c > +++ b/kernel/rcu/srcutree.c > @@ -39,7 +39,7 @@ > > #include "rcu.h" > > -ulong exp_holdoff = 50 * 1000; /* Holdoff (ns) for auto-expediting. */ > +ulong exp_holdoff = 25 * 1000; /* Holdoff (ns) for auto-expediting. */ Yup, exactly what I did.

