uname -a
Linux ubuntu 2.6.20-8-generic #2 SMP Tue Feb 13 05:18:42 UTC 2007 i686 GNU/Linux
 

cat /proc/interrupts 
           CPU0       
  0:      50639   IO-APIC-edge      timer
  1:          1   IO-APIC-edge      i8042
  7:          0   IO-APIC-edge      parport0
  8:          3   IO-APIC-edge      rtc
  9:          1   IO-APIC-fasteoi   acpi
 12:       1476   IO-APIC-edge      i8042
 15:        566   IO-APIC-edge      ide1
 16:          0   IO-APIC-fasteoi   uhci_hcd:usb1, uhci_hcd:usb4
 17:         92   IO-APIC-fasteoi   uhci_hcd:usb2
 18:     100000   IO-APIC-fasteoi   uhci_hcd:usb3, ide2
 19:          2   IO-APIC-fasteoi   ehci_hcd:usb5
 20:         79   IO-APIC-fasteoi   eth0, ivtv1
 21:          0   IO-APIC-fasteoi   ivtv0
 22:        541   IO-APIC-fasteoi   Intel ICH5
NMI:          0 
LOC:      50596 
ERR:          0
MIS:          0