Re: [PATCH] MIPS: smp: report dying CPU to RCU in stop_this_cpu()

[Sebastian Andrzej Siewior]

On 2026-06-04 18:24:07 [+0000], Jonas Jelonek wrote:
…
> This issue popped up during kernel bump downstream in OpenWrt from
> 6.18.33 to 6.18.34, since the suspected change has been backported to
> 6.18 stable branch [1].

I would avoid the link and simply write after the backport of the patch
or so.

> Call rcutree_report_cpu_dead() once interrupts are disabled, mirroring the
> generic CPU-hotplug offline path (and arm64's stop handling), so RCU stops
> waiting on the parked CPUs and grace periods can still complete.

This is part of cpuhp_report_idle_dead(). Is it now invoked twice? Or is
something else missing/ different? 

Sebastian