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

From: Rik van Riel
Date: Wed Jan 29 2025 - 11:57:41 EST


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? ;)

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