On Thu, Nov 19, 2020 at 04:57:18PM +0100, Manuel Bouyer wrote:
> On Thu, Nov 19, 2020 at 03:19:15PM +0100, Roger Pau Monné wrote:
> > I've got two different debug patches for you to try. I'm attaching both
> > to this email but I think we should start with Jan's suggestion
> > (conditional_print.patch). That patch will only print extra messages
> > between the ioregsel 3 ... ioregsel f existing debug messages, you
> > will have to trigger this from NetBSD by using ioapic_dump_raw AFAICT.
>
> thanks. I didn't see any change in behavior or XEN output with this
> patch (especially the vioapic_deliver string doesn't show up in the
> logs).
I tried forcing print to 1, and I still don't see "vioapic_deliver" on the
console. I changed the patch to:
#define vioapic_deliver(vioapic, irq) ({\
if ( /* print && irq == 34 */ 1 ) \
printk("%s:%d:%s: vioapic_deliver %d\n", __FILE__, __LINE__, __func__, i
rq); \
_vioapic_deliver(vioapic, irq); })
and got:
[ 13.8853432] ioapic2: pin2 0x0000a067 0x00000000^M
[ 13.8853432] mfii0: cmd timeout ccb 0xffff9780023b7d60 status 0x40000008^M
(XEN) *** Serial input to Xen (type 'CTRL-a' three times to switch input)
(XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2
[ 17.0001093] mfii0: cmd aborted ccb 0xffff9780023b7d60^M
(XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2
[ 17.0217772] config_pending_decr: scsibus0 0^M
(XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2
[ 17.(XEN) vioapic.c:511:vioapic_irq_positive_edge: vioapic_deliver 2
0417095] config_finalize 2185^M
So I guess that the interrupt delivery on XEN output is
vioapic.c:511
--
Manuel Bouyer <bou...@antioche.eu.org>
NetBSD: 26 ans d'experience feront toujours la difference
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