interrupt storm

[Frank Steinborn]

Mark Busby wrote:
> 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

[...]

>   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?

Try to place the soundcard on another PCI-Slot. This will help you
most probably.

HTH,
Frank