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SubjectRe: 2.4.20-pre2-ac3 stops responding
Rik van Riel wrote:
>
> On Fri, 16 Aug 2002, Jean-Luc Coulon wrote:
> > Rik van Riel wrote:
> > > On Fri, 16 Aug 2002, Jean-Luc Coulon wrote:
> > >
> > > > 2nd while running:
> > > > ------------------
> > > > If I have high disk activity, the system stops responding for a while,
> > > > it does not accepts any key action nor mouse movement. It starts running
> > > > normally after few seconds.
> > >
> > > I've got a patch that might help improve this situation:
> > >
> > > http://surriel.com/patches/2.4/2.4.20-p2ac3-rmap14
> >
> > I've applied the patch, it does not improve the things.
> > The problem seems to be related with a DMA :
>
> > /dev/hda2:
> > setting using_dma to 1 (on)
> > HDIO_SET_DMA failed: Invalid argument
> > using_dma = 0 (off)
>
> Heh indeed. There's no way to make your system fast if the
> CPU is tied up waiting for the disk all the time ;)
>
> regards,
>
> Rik
> --
> Bravely reimplemented by the knights who say "NIH".
>
> http://www.surriel.com/ http://distro.conectiva.com/

Of course, but I've not yet found the way to setup DMA

At boot time, I get the messages :

Aug 16 11:34:19 f5ibh kernel: ALI15X3: simplex device: DMA disabled
Aug 16 11:34:19 f5ibh kernel: ide0: ALI15X3 Bus-Master DMA disabled
(BIOS)

-----
Regards
Jean-Luc
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