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Re: [Xen-devel] dom0less + sched=null => broken in staging

On Wed, 2019-08-14 at 09:27 -0700, Stefano Stabellini wrote:
> On Wed, 14 Aug 2019, Dario Faggioli wrote:
> > On Tue, 2019-08-13 at 14:14 -0700, Stefano Stabellini wrote:
> > > 
> > Now, while staring at the code of that loop, I've seen that
> > pick_cpu()
> > may mess up with the scratch cpumask for the CPU, which I don't
> > think
> > is a good thing.
> > 
> > So, can you also try this third debug-patch?
> Yep, see attached
Ok, thanks again. So, cpumask_scratch() being mishandled was part of
the problem, but not the root-cause.

Well, it was worth a shot. :-P

I think we need to get rid of the loop in which we're stuck. I have in
mind a way to do this... I'll craft a patch later, or on Friday.

Dario Faggioli, Ph.D
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
<<This happens because _I_ choose it to happen!>> (Raistlin Majere)

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