Re: sched_ext/lavd hard lockup in old call_rcu_tasks_generic needadjust path

[Matt Fleming]

On Fri, Jun 12, 2026 at 07:00:31AM -0700, Paul E. McKenney wrote:
> 
> Huh.  Looks like I did not implement RCU Tasks Trace in terms of SRCU
> any time too soon.  But there is also RCU Tasks and RCU Tasks Rude.
> 
> If we don't backport the SRCU patches, then the obvious alternative is
> for call_rcu_tasks*() to defer to IRQ work when invoked with interrupts
> disabled.  Or is there a better way?

What about something like this?

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