Re: [PATCH 0/3] rv/reactors: fix lockdep warning and add KUnit tests

[Gabriele Monaco]

On Wed, 2026-06-17 at 17:52 +0200, Nam Cao wrote:
> Gabriele Monaco <gmonaco@xxxxxxxxxx> writes:
> > Are those tests supposed to trigger this issue though? Under what
> > configuration?
> > 
> > I reverted the lockdep fix and run the tests in vng on both x86_64
> > and arm64, both preempt_rt and not but I see no splat.
> > Repeating the tests multiple times from debugfs also didn't seem to
> > help. Both machines were relatively large (128 and 48 CPUs).
> > 
> > The config was the bare vng one with kunit built-in, lockdep and
> > the reactors tests.
> > 
> > What am I missing?
> 
> I haven't tried to reproduce it, but seems quite rare. From the look
> of it, adding some delay into the reactor function should make the
> issue more easily reproducible.

Yeah the tests should be doing that, but even increasing the delay
didn't help. I should probably try on physical machines to have more
likely interrupts but at least the tick should be running.