Re: Enable DMA on a Travelmate 8005

From: Marco Calviani (mirtux_at_studenti.fisica.unifi.it)
Date: 04/06/05

  • Next message: Henrique de Moraes Holschuh: "Re: benefits of invoke-rc.d"
    Date: Wed, 06 Apr 2005 12:51:11 +0200
    To: Dave Ewart <davee@sungate.co.uk>
    
    

    Dave Ewart wrote:

    >On Wednesday, 06.04.2005 at 12:43 +0200, Marco Calviani wrote:
    >
    >
    >
    >>i would like to enable DMA on my laptop (with a Intel 855GME chipset)
    >>since this is the results from *hdparm*:
    >>Code:
    >>
    >>hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 10 MB in 3.30
    >>seconds = 3.03 MB/sec
    >>
    >>very poor.
    >>However when i try to enable it with *hdparm -d1 /dev/hda* i've got the
    >>error:
    >>Code:
    >>
    >>/dev/hda: setting using_dma to 1 (on) HDIO_SET_DMA failed: Operation not
    >>permitted using_dma = 0 (off)
    >>
    >>Maybe i've got some IDE module missing?
    >>
    >>
    >
    >Assuming this is done as root? If not, you need to do that; if already
    >root, what kernel are you running?
    >
    >Dave.
    >
    >
    Ok, i' root, and i'm using a custom reviewed 2.6.10 kernel.

    Regards,
    MC

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