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SubjectRe: libata - DMA problems ICH7 rev 02
On Fri, May 2, 2008 at 2:58 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> > my BIOS didn't support it), but none of them worked (every time my
> > harddisk is loading my CPU is spammed with IOWait).
>
> Then you must have a different problem ?

Maybe, but it seems as DMA isn't used. Everytime my hard disk is
reading/writing my system gets very slow. Here's the line when i run
top:

Cpu(s): 12.6%us, 5.4%sy, 0.0%ni, 6.5%id, 74.2%wa, 0.5%hi, 0.8%si, 0.0%st

The thing I mean is "wa".

> > Output of uname -a and lspci is attached.
> >
> > I hope you can help me, very hard to work without DMA.
>
> Please send the output of "dmesg" after boot

Okay, I pasted it here: http://rafb.net/p/KiWhqE72.html


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