Re: issues upgrading to 4.13

[Andrew Parker <andrew%pmk1.net@localhost>]

On Wednesday, 03 February 2021 07:12:10 EST Manuel Bouyer wrote:
> On Wed, Feb 03, 2021 at 01:06:56PM +0100, Matthias Petermann wrote:
> > Hello Manuel,
> > 
> > Am 02.02.2021 um 19:39 schrieb Manuel Bouyer:
> > > Hello,
> > > it seems that this is due to a difference between linux and NetBSD poll
> > > implementation. This causes sockets to never be closed on the xenstored
> > > side, and instead loop ignoring the POLLIN event.
> > > 
> > > The attached patch fixes it for me, but I'm not sure at this
> > > point if it's 100% correct.
> > 
> > Thanks so much - this sounds good and I'm going to try this out right
> > after
> > work today!
> 
> Things are still in discussion with Xen - the new version of the
> patch is attached. But it's possible that the first chunk will be dropped,
> keeping only the patch to ignore_connection() (this is the one that
> really matters).

Just wanted to confirm that this patch did clear up the xenstored CPU issue for 
me.  PV and HVM domains run just fine under 4.13 now.  Thanks!