>> When I am doing something heavily (CPU burn) and I want to listen to a
mp3
>> file or an audio file I get this:
>>
>> /dev/dsp is out of memory
>>
>> Why is this happening???
>It is not a matter of CPU burn. It is a matter of the design of the ISA
>bus. Apparently you have an ISA sound card that uses DMA >channels. The
>problem is that ISA DMA channels can only access the bottom 1M >of memory,
I don't agree on this. ISA DMA transfers are NOT limited to the 1 MB border.
Some older DMA controllers can only transfer below 16 MB, the rest can
transfer above 16 MB. The only exception is the ISA bus, which has a limit
of 16 MB.
>because that's all that the original IBM PC had. Furthermore, all of >the
>memory has to be contiguous -- no gaps in it. If the sound card is set >up
>for a 32K buffer, that means you must have 32K of memory with no >gaps in
>it below the 1M boundary.
Igmar
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