Re: [PATCH][2.5] Don't wake up tasks on offline processors

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On Mon, 17 Feb 2003, Ingo Molnar wrote:

>
> On Mon, 17 Feb 2003, Zwane Mwaikambo wrote:
>
> > This is the current code to migrate tasks off a dead cpu;
>
> looks good in principle, but to avoid races i'd rather suggest to lock
> _all_ runqueues in one big swoop, and then just move everything as
> apropriate. It's not like this code has to be highly effective.

Ok i'll have a go at that instead, however how hard would it be to do a
multiple lock acquisition of that magnitude on 16+ cpus?

Thanks,
        Zwane

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