Re: NetBSD dom0 PVH: hardware interrupts stalls

[Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>]

On Tue, Nov 24, 2020 at 01:21:02PM +0100, Roger Pau Monné wrote:
> [...]
> > What we're missing is LAPIC information, since the masked status logged
> > is unclear: (-MM) isn't fully matching up with "mask=0". But of course
> > the former is just a software representation, while the latter is what
> > the RTE holds. IOW for the interrupt to not get delivered, there needs
> > to be this or a higher ISR bit set (considering we don't use the TPR),
> > or (I think we can pretty much exclude this) we'd need to be running
> > with IRQs off for extended periods of time.
> 
> Let's dump the physical lapic(s) IRR and ISR together with the
> IO-APIC state. Can you please apply the following patch and use the
> 'i' key again? (please keep the previous patch applied)

Done, you'll find the log at
http://www-soc.lip6.fr/~bouyer/xen-log6.txt

-- 
Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>
     NetBSD: 26 ans d'experience feront toujours la difference
--