Re: [linus:master] [x86] 4817f70c25: stress-ng.mmapaddr.ops_per_sec 63.0% regression

[Frederic Weisbecker]

Le Wed, Jan 29, 2025 at 11:57:19AM -0500, Rik van Riel a écrit :
> On Wed, 2025-01-29 at 17:53 +0100, Frederic Weisbecker wrote:
> > Le Wed, Jan 29, 2025 at 08:36:12AM -0800, Paul E. McKenney a écrit :
> > > 
> > > So it won't prevent RCU callbacks from being invoked.
> > > 
> > > It *will* ensure that only a finite number of RCU callbacks get
> > > invoked.
> > > For some perhaps rather large value of "finite".
> > > 
> > > Does that help, or is more required?
> > 
> > I don't fully understand the issue either but would spin_lock_bh()
> > help?
> 
> Was that a jinx, or an ack to that latest patch? ;)

Probably both :-)

> 
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