cat /proc/interrupts with acpi=off
           CPU0       
  0:      25193    XT-PIC-XT        timer
  1:        226    XT-PIC-XT        i8042
  2:          0    XT-PIC-XT        cascade
  5:          0    XT-PIC-XT        uhci_hcd:usb3, VIA8233
  7:          0    XT-PIC-XT        uhci_hcd:usb2
  8:          3    XT-PIC-XT        rtc
 10:          0    XT-PIC-XT        ehci_hcd:usb4
 11:       1409    XT-PIC-XT        uhci_hcd:usb1, eth0, via@pci:0000:01:00.0
 12:       2329    XT-PIC-XT        i8042
 14:       6615    XT-PIC-XT        ide0
NMI:        350 
LOC:      25073 
ERR:          0
MIS:          0