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.