Re: Problem to turn DMA on
2008/4/23, David Baron <d_baron@012.net.il>:
> Hi all.
>
> I got a very old notebook running debian 4.0 with kernel 2.6.25 and 2.6.21.
> It has a 4GB IDE harddisk. I'm trying to enable DMA with hdparm, but it is
> not working.
>
> The command I run and its output are:
>
> # hdparm -qc3 -qm16 -qd1 -qX66 -qS120 /dev/hda
> HDIO_SET_DMA failed: Operation not permitted
>
> Did someone get this message before or know to solve it?
>
> Thanks,
>
> Rafael
What chipset, particularly the IDE chips, are on that very old network?
You may need to compile the kernel with the appropriate driver rather than the
ide-generic. I had this with a via chipset MB.
Hi David. thanks the reply and sorry for taking so long to answer.
I'm not very sure if I understand what you mean by 'IDE chips' and therefore I'm not sure how can I find it it my system. Maybe you could explain or inform me the appropriated command...
Not sure if it helps, but my harddisk is a "Toshiba MK4006MAV" and, according to /proc/ide/ide0/hda/driver, it is using the driver ide-disk.
Does this help?
Cheers,
Rafael
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