Re: [PATCH 6.6.y] MIPS: smp: report dying CPU to RCU in stop_this_cpu()

[Sasha Levin]

> commit 9f3f3bdc6d9dac1a5a8262ee7ad0f2ff1527a7e7 upstream.
>
> smp_send_stop() parks all secondary CPUs in stop_this_cpu(). The function
> marks the CPU offline for the scheduler via set_cpu_online(false) but
> never informs RCU, so RCU keeps expecting a quiescent state from CPUs
> that are now spinning forever with interrupts disabled.

Queued for 6.6, thanks.

-- 
Thanks,
Sasha