[Fedora-xen] Xen/Linux 3.4.2 performance

[M A Young]

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
(XEN) physdev.c:164: dom0: wrong map_pirq type 3
(XEN) do_IRQ: 1.240 No irq handler for vector (irq -1)
(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