BTW: thanks to everyone who helped me bypass this problem.
On 9 Apr, David C Niemi wrote:
>
> Hmm, I was seeing this for many kernel revs (since the 2.1.5x series if my
> unreliable memory is accurate) for ESS PnP sound cards, even when the
> parallel printer port was disabled or moved to another IRQ. I thought it
> was something wrong with PnP or something, so I didn't report it way back
> then).
>
> Moving to IRQ 5 cured all the problems, so I really do suspect this is a
> problem with IRQ 7 (if there's a way for just one IRQ to break!). I saw
> this on at least 3 very different PCs with newer kernels:
On 8 Apr, Alan Cox wrote:
>> > doesn't work the IRQ is not making it to the sound layer and there is nothing
>> > the sound drivers can do about it. Maybe this is a symptom of the APIC changes
>> > - or have you changed any hardware around recently ?
>> >
>>
>> I have NOT had any hardware changes.
>
> Ok good.
>
>> cat /proc/interrupts
>> CPU0
>> 0: 393142 XT PIC timer
>> 1: 11098 XT PIC keyboard
>> 2: 0 XT PIC cascade
>> 7: 0 XT PIC soundblaster
>
> Someone has broken something lower than the sound driver, no IRQ 7's are
> being delivered. Perhaps Ingo or someone who hit the IRQ layer can
> investigate
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