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SubjectRe: Alan's bug catalogue
From
Date
Hi,

Jamie Lokier wrote:
>
>I have exactly 16Mb. I don't see how having more memory makes it more
>difficult to find spare DMA pages, but what would I know? :-)
>
Since the system can only DMA to the lower 16 MByte, if you don't have more
there's no problem, the system just grabs what it needs. The problem comes
when you need to read into memory above 16 MByte -- in that case you need a
bounce buffer. Apparently, for some yet-unknown reason managing these
doesn't work particularly well when aha1542.o is loaded as a module.

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