On Thursday 2008-05-01 21:08, Alan Cox wrote:

quoted text
>> To get rid of the errors, I can use libata.dma=0 kernel
>> command-line parameter. Unfortunately, this sets all libata
>> devices to PIO4 mode. How can I set just this one? I tried
>> 'libata.force=7.00:pio4' but it did not help.
>
>libata.dma=3 will stop DMA being used for CF devices (except those that
>decide to pretend to be ATA classes). This one comes up a lot as many CF
>adapters are simply not adequate for UDMA.

Perhaps the kernel could do this automatically once it sees the
status code?
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