Re: [Xen-devel] crash in csched_load_balance after xl vcpu-pin

[Dario Faggioli <dfaggioli@xxxxxxxx>]

On Tue, 2018-04-10 at 16:25 +0100, George Dunlap wrote:
> On 04/10/2018 12:29 PM, Dario Faggioli wrote:
> > 
> One thing we might consider doing is implementing the migrate()
> callback
> for the Credit scheduler, and just have it make a bunch of sanity
> checks
> (v->processor lock held, new_cpu lock held, vcpu not on any runqueue,
> &c).
> 
So, it turns out that I have to run. :-/

I hacked the attached patch rather quickly, but only compile tested
it... And I'm pretty tired, so I can't guarantee all the BUG_ON()s are
correct, nor that they are the proper ones to (potentially) catch the
issue.

So, Olaf, if you're fancy giving this a tray anyway, well, go ahead.

If it does not work, though, get rid of it... and I'll craft a better
one tomorrow. :-(

Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Software Engineer @ SUSE https://www.suse.com/

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