# cat /proc/interrupts
           CPU0
  0:         75   IO-APIC-edge      timer
  1:          9  xen-pirq-ioapic-edge  i8042
  4:       5085  xen-pirq-ioapic-edge  serial
  8:          2  xen-pirq-ioapic-edge  rtc0
  9:          0   IO-APIC-fasteoi   acpi
 12:          3  xen-pirq-ioapic-edge  i8042
 14:          0   IO-APIC-edge      ata_piix
 15:          4   IO-APIC-edge      ata_piix
 36:      14413  xen-pirq-ioapic-level  ath9k
 48:       6080  xen-percpu-virq      timer0
 49:          0  xen-percpu-ipi       resched0
 50:          0  xen-percpu-ipi       callfunc0
 51:          0  xen-percpu-virq      debug0
 52:          0  xen-percpu-ipi       callfuncsingle0
 53:          0  xen-percpu-ipi       spinlock0
 54:        372   xen-dyn-event     xenbus
 56:        681   xen-dyn-event     blkif
 57:         76  xen-pirq-msi       eth0
 58:        330   xen-dyn-event     eth1-q0-tx
 59:          5   xen-dyn-event     eth1-q0-rx
NMI:          0   Non-maskable interrupts
LOC:          0   Local timer interrupts
SPU:          0   Spurious interrupts
PMI:          0   Performance monitoring interrupts
IWI:          6   IRQ work interrupts
RTR:          0   APIC ICR read retries
RES:          0   Rescheduling interrupts
CAL:          0   Function call interrupts
TLB:          0   TLB shootdowns
TRM:          0   Thermal event interrupts
THR:          0   Threshold APIC interrupts
MCE:          0   Machine check exceptions
MCP:          1   Machine check polls
THR:      23317   Hypervisor callback interrupts
ERR:          0
MIS:          0