Re: scheduler problems on shutdown

[Nick Piggin <nickpiggin@yahoo.com.au>]

Martin J. Bligh wrote:
>>I think the WARN_ON can go. You have to make sure the for_each_cpu
>>loop doesn't get to run it though. It shouldn't be in the latest -mm
>>kernels, is it?
> 
> 
> OK, I'll figure it out. I don't like the latest code, so don't really want
> to "upgrade" though.
>  

Oh? Anything specific?

> 
>>It is normal to have an entire group offline with CPU hotplug.
> 
> 
> Only if we can't figure out how to hotplug groups as well, which would
> be a much cleaner way of doing it.
> 

I think we'll soon want to add a sched domain setup callback
for hotplug that can take care of these things as required.
But for now, the current situation should be OK.