[Fedora-xen] Xen/Linux 3.4.2 performance

[Konrad Rzeszutek Wilk]

On Thu, Jul 05, 2012 at 11:00:05PM +0100, M A Young wrote:
> On Tue, 3 Jul 2012, Konrad Rzeszutek Wilk wrote:
> 
> >Besides that..there is:
> >
> >9846ff1 xen: support pirq_eoi_map
> >(and its fix) 521394e xen: use the pirq number to check the pirq_eoi_map
> 
> In my case it is definitely IRQ related. From xl dmesg I get

If you revert those two, are those issues still present?
> (XEN) physdev.c:164: dom0: wrong map_pirq type 3

This is one is due to another one - a fix that went in 3.3 (allowing
PCI domains to work).

> (XEN) do_IRQ: 1.240 No irq handler for vector (irq -1)

So vector 240...or 0xf0. That I am not sure about.


> (XEN) traps.c:2488:d0 Domain attempted WRMSR 0000000000000079 from
> 0x00000000000
> 00000 to 0xffffc90005193030.
> (XEN) traps.c:2488:d0 Domain attempted WRMSR 0000000000000079 from
> 0x00000000000
> 00000 to 0xffffc9000519b030.
> (XEN) do_IRQ: 1.240 No irq handler for vector (irq -1)
> (XEN) traps.c:2488:d1 Domain attempted WRMSR 0000000000000079 from
> 0x00000000000
> 00000 to 0xffffc900001a9030.
> (XEN) do_IRQ: 1.40 No irq handler for vector (irq -1)
> (XEN) do_IRQ: 1.240 No irq handler for vector (irq -1)
> (XEN) do_IRQ: 1.240 No irq handler for vector (irq -1)
> 
> 	Michael Young