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SubjectRe: Typical PREEMPT_RT .config?
On Tue, Apr 05, 2022 at 09:42:02AM -0400, Steven Rostedt wrote:
> On Tue, 5 Apr 2022 09:40:48 -0400
> Steven Rostedt <rostedt@goodmis.org> wrote:
>
> > On Mon, 4 Apr 2022 16:16:54 -0700
> > "Paul E. McKenney" <paulmck@kernel.org> wrote:
> >
> > > OK, now that PREEMPT_RT is mostly into mainline, I should probably create
> > > an rcutorture scenario more closely reflecting it. The closest at the
> > > moment is probably tools/testing/selftests/rcutorture/configs/rcu/TREE03,
> > > but I figured that before beating on it I should check to see if you
> > > already have a PREEMPT_RT rcutorture scenario file.
> >
> > I don't have one.
>
> And now reading the subject line and not just the body, are you asking
> about what configs are normally added? I had several I used for testing,
> but will have to go back and look at them.

That would be great! I can easily add CONFIG_PREEMPT_RT=y. Maybe I also
should add CONFIG_RT_DELAYED_SIGNALS, though rcutorture probably doesn't
care about this one. Maybe threaded interrupts happen automatically?
Sleeping spinlocks?

If no advice is forthcoming, I will make something up based on my best
guesses, but I guarantee you that this will result in me missing important
bugs in my testing. ;-)

So it would be great to have a list of the Kconfig options normally
selected when building CONFIG_PREEMPT_RT=y kernels.

Thanx, Paul

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