Re: NetBSD dom0 PVH: hardware interrupts stalls

[Manuel Bouyer <bouyer@xxxxxxxxxxxxxxx>]

On Wed, Nov 18, 2020 at 10:16:17AM +0100, Jan Beulich wrote:
> On 17.11.2020 17:40, Manuel Bouyer wrote:
> > On Tue, Nov 17, 2020 at 04:58:07PM +0100, Roger Pau Monné wrote:
> >> [...]
> >>
> >> I have attached a patch below that will dump the vIO-APIC info as part
> >> of the 'i' debug key output, can you paste the whole output of the 'i'
> >> debug key when the system stalls?
> > 
> > see attached file. Note that the kernel did unstall while 'i' output was
> > being printed, so it is mixed with some NetBSD kernel output.
> 
> Could you try to run Xen's serial port without use of any IRQ
> (i.e. in "polling" mode), in an attempt to avoid this unstalling
> (which is likely to render the resulting output at least in part
> meaningless)?

It there a boot line option for that ?

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