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SubjectRe: 2.6.1 "clock preempt"?
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Date
On Thu, 2004-01-22 at 12:00, timothy parkinson wrote:
> su -c "/usr/sbin/hdparm /dev/hda"
> Password:
>
> /dev/hda:
> multcount = 16 (on)
> IO_support = 1 (32-bit)
> unmaskirq = 0 (off)
> using_dma = 0 (off)
> keepsettings = 0 (off)
> readonly = 0 (off)
> readahead = 256 (on)
> geometry = 65535/16/63, sectors = 156301488, start = 0
>
> but...
>
> su -c "/usr/sbin/hdparm -d1 /dev/hda"
> Password:
>
> /dev/hda:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Operation not permitted
> using_dma = 0 (off)
>
> it's an 80gig western digital from about 2-3 years ago.

Its likely you need to enable support in the kernel for your IDE
controller, or your DMA on your controller isn't supported.

thanks
-john

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