interrupt storm

[Mark Busby]

Checking /var/log/messages after loading snd_emu10k1, I see the following.
  muz kernel: pcm1: <Creative EMU10K1> port 0xd800-0xd81f irq 4 at device 9.0 on pci0
muz kernel: Interrupt storm detected on "irq4: atapci0"; throttling interrupt source
muz kernel: pcm1: <SigmaTel STAC9708/11 AC97 Codec>
muz kernel: emujoy0: detached
   
  Upon.
  muz# vmstat -i
interrupt                          total       rate
irq0: clk                         933473        998
irq4: pcm0 atapci0             1213          1
irq7: ppc0                             1          0
irq8: rtc                         119494        127
irq11: dc0                         1001          1
irq13: npx0                            1          0
irq14: ata0                           46          0
Total                            1055229       1128
  ###################################
  muz# pciconf -lv
agp0 at pci0:0:0:  class=0x060000 card=0x154110b9 chip=0x154110b9 rev=0x04 hdr=0x00
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'ALI M1541 Aladdin V/V+ AGP System Controller'
    class    = bridge
    subclass = HOST-PCI
pcib1 at pci0:1:0: class=0x060400 card=0x000000e0 chip=0x524310b9 rev=0x04 hdr=0x01
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'ALI M1541 PCI to AGP Bridge'
    class    = bridge
    subclass = PCI-PCI
ohci0 at pci0:2:0: class=0x0c0310 card=0x00000000 chip=0x523710b9 rev=0x03 hdr=0x00
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'M5237 OpenHCI 1.1 USB Controller'
    class    = serial bus
    subclass = USB
none0 at pci0:3:0: class=0x068000 card=0x710110b9 chip=0x710110b9 rev=0x00 hdr=0x00
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'ALI M7101 Power Management Controller'
    class    = bridge
isab0 at pci0:7:0: class=0x060100 card=0x00000000 chip=0x153310b9 rev=0xc3 hdr=0x00
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'ALI M1533 Aladdin IV ISA Bridge'
    class    = bridge
    subclass = PCI-ISA
pcm0 at pci0:9:0:  class=0x040100 card=0x100a1102 chip=0x00021102 rev=0x0a hdr=0x00
    vendor   = 'Creative Labs'
    device   = 'EMU10000 Sound Blaster Live! (Also Live! 5.1) - OEM from DELL - CT4780'
    class    = multimedia
    subclass = audio
emujoy0 at pci0:9:1:       class=0x098000 card=0x00201102 chip=0x70021102 rev=0x0a hdr=0x00
    vendor   = 'Creative Labs'
    device   = 'EMU10000 Game Port'
    class    = input device
none1 at pci0:10:0:        class=0x030000 card=0x00000000 chip=0x88115333 rev=0x44 hdr=0x00
    vendor   = 'S3 Graphics Co., Ltd.'
    device   = '86C732 Trio32, 86C764 Trio64, 86C765 Trio64V+ Rev 01'
    class    = display
    subclass = VGA
dc0 at pci0:12:0:  class=0x020000 card=0xf0041385 chip=0x000211ad rev=0x21 hdr=0x00
    vendor   = 'Lite-On Communications Inc'
    device   = 'NGMC169B 10/100 Ethernet (NetGear FA310TX)'
    class    = network
    subclass = ethernet
atapci0 at pci0:13:0:      class=0x018000 card=0x4d33105a chip=0x4d30105a rev=0x02 hdr=0x00
    vendor   = 'Promise Technology Inc'
    device   = 'PDC20267 FastTrack100 EIDE Controller'
    class    = mass storage
atapci1 at pci0:15:0:      class=0x01018a card=0x00000000 chip=0x522910b9 rev=0xc1 hdr=0x00
    vendor   = 'Acer Labs Incorporated (ALi)'
    device   = 'M1543 Southbridge EIDE Controller'
    class    = mass storage
    subclass = ATA

  I have added to /boot/device.hints the following lines to try to force pcm to another IRQ
  but "no joy"
   
  hint.pcm.0.at="isa"
hint.pcm.0.irq="5"
hint.pcm.0.drq="1"
hint.pcm.0.flags="0x0"
   
  Is there a way to move the sound to another irq? or the atapci?
  and HOW?