From: Dario Faggioli <dfaggioli@suse.com>
To: Stefano Stabellini <sstabellini@kernel.org>
Cc: "George.Dunlap@eu.citrix.com" <George.Dunlap@eu.citrix.com>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
Julien Grall <julien.grall@arm.com>
Subject: Re: [Xen-devel] dom0less + sched=null => broken in staging
Date: Wed, 14 Aug 2019 19:35:50 +0200 [thread overview]
Message-ID: <78072866796e1dedd9068e4298a13c58a30e74e7.camel@suse.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1908140927100.8737@sstabellini-ThinkPad-T480s>
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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.
Regards
--
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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next prev parent reply other threads:[~2019-08-14 17:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-07 18:22 [Xen-devel] dom0less + sched=null => broken in staging Stefano Stabellini
2019-08-08 8:04 ` George Dunlap
2019-08-08 20:44 ` Stefano Stabellini
2019-08-09 7:40 ` Dario Faggioli
2019-08-09 17:57 ` Dario Faggioli
2019-08-09 18:30 ` Stefano Stabellini
2019-08-13 15:27 ` Dario Faggioli
2019-08-13 16:52 ` Julien Grall
2019-08-13 17:34 ` Dario Faggioli
2019-08-13 18:43 ` Julien Grall
2019-08-13 22:26 ` Julien Grall
2019-08-13 22:34 ` Dario Faggioli
2019-08-13 23:07 ` Julien Grall
2019-08-13 21:14 ` Stefano Stabellini
2019-08-14 2:04 ` Dario Faggioli
2019-08-14 16:27 ` Stefano Stabellini
2019-08-14 17:35 ` Dario Faggioli [this message]
2019-08-21 10:33 ` Dario Faggioli
2019-08-24 1:16 ` Stefano Stabellini
2019-09-11 13:53 ` Dario Faggioli
2019-09-25 15:19 ` Julien Grall
2019-09-25 15:34 ` Dario Faggioli
2019-09-25 15:39 ` Julien Grall
2019-09-25 15:41 ` Jürgen Groß
2019-10-28 5:35 ` Dario Faggioli
2019-10-28 18:40 ` Stefano Stabellini
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