Re: IDE DMA doesn't work withpata_via and compact flas h card

From: philipp
Date: Thu Oct 11 2007 - 07:40:20 EST



On Thu, 11 Oct 2007 11:19:11 +0100, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
wrote:
>> ones, when using DMA. Turning off DMA for the old IDE drivers or
>> patching ata_generic to handle my IDE controller and then deactivating
>> DMA in the BIOS works, but then disk I/O is unbelievable slow.. do you
>> have any idea how to fix it, so that DMA works?
>
> Does your CF/IDE adapter support DMA ?

Oh well, you're right.. there are still some CF/IDE adapters which do not
support DMA. I'll guess this is the problem then, so I'll return it to the
shop.

Best regards,
Philipp

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