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Re: NetBSD dom0 PVH: hardware interrupts stalls


  • To: Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>
  • From: Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Date: Tue, 24 Nov 2020 16:49:17 +0100
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  • Cc: Jan Beulich <jbeulich@xxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Tue, 24 Nov 2020 15:49:48 +0000
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On Tue, Nov 24, 2020 at 04:08:42PM +0100, Manuel Bouyer wrote:
> On Tue, Nov 24, 2020 at 03:52:25PM +0100, Jan Beulich wrote:
> > On 24.11.2020 15:27, Manuel Bouyer wrote:
> > > new log at
> > > http://www-soc.lip6.fr/~bouyer/xen-log7.txt
> > > 
> > > this one ends up in a panic, I hope you'll find what you expect here.
> > 
> > Did you actually, just to have the data point, ever try to disable
> > interrupt remapping ("iommu=no-intremap")? For PVH we can't ask you
> > to turn of the IOMMU as a whole, but aiui interrupt remapping is
> > not a strict prereq. (I'm sure Roger will correct me if I'm wrong.)
> 
> I just tried, it doesn't seem to change anything.

Could you also give a try with ioapic_ack=new on the Xen command line?

Thanks, Roger.



 


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