Re: [PATCH 2/2] sched_ext: Dump the stall CPU first in watchdog exit

[Tejun Heo]

Hello,

On Thu, Apr 09, 2026 at 07:52:23AM +0200, Andrea Righi wrote:
> > Would it make sense to generalize this so that the exit record the CPU the
> > exit is triggered on and always dump that CPU first? That should include
> > stall case, is likely useful for different cases too and we don't have to
> > add @stall_cpu to the exit functions.
> 
> But if we record the current CPU the exit is triggered on, in
> check_rq_for_timeouts() we would prioritize the watchdog worker's CPU instead of
> the stalled one, right?

Ah, right. Can we at least generalize it to culprit or offending CPU? For
regular scx_error() triggers, we'd want to see what that particular CPU was
doing too.

Thanks.

-- 
tejun