IDE drivers
On a couple of machines I've found that having IDE drivers built as modules
(as is done in the Debian kernel binary packages) will result in DMA not
being usable and performance sucking (3MB/s maximum transfer rate). On the
same machine using a kernel with the IDE drivers compiled in (with that as
the only change) DMA was used and transfer rates as high as 30MB/s were
common.
The Fedora kernel binary packages have IDE compiled into the kernel,
presumably to work around this problem.
I guess that this indicates a bug in the kernel.org source. But while we wait
for that to be fixed I think that compiling the drivers into the kernel would
be the right thing to do.
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