Re: [Patch v4 1/3] lib: Restrict cpumask_local_spread to houskeeping CPUs

[Thomas Gleixner]

On Wed, Jan 27 2021 at 09:19, Marcelo Tosatti wrote:
> On Wed, Jan 27, 2021 at 11:57:16AM +0000, Robin Murphy wrote:
>> > +	hk_flags = HK_FLAG_DOMAIN | HK_FLAG_MANAGED_IRQ;
>> > +	mask = housekeeping_cpumask(hk_flags);
>> 
>> AFAICS, this generally resolves to something based on cpu_possible_mask
>> rather than cpu_online_mask as before, so could now potentially return an
>> offline CPU. Was that an intentional change?
>
> Robin,
>
> AFAICS online CPUs should be filtered.

The whole pile wants to be reverted. It's simply broken in several ways.

Thanks,

        tglx