Re: 2.6.9: VIA sATA cannot switch to 32bit I/O?

From: Jeff Garzik
Date: Tue Dec 21 2004 - 14:36:19 EST

Jan Marek wrote:
Hallo l-k,

I have problem with my Abit AV8 MB (s939 with VIA KT800Pro chipset and
VIA sATA controller and 120GB Seagate Barracuda disk): I cannot switch
32bit access to disk to on?! I'm using libata driver...

When I use hdparm -c1 /dev/sda, I've got some error message (sorry, I
haven't this message here, it's my home computer). Therefore disk is too
slow to putting data for burning CD's and I need 'burnfree' feature...

Please, have anyone advice for me to speedup disk access, or is it

This will not speed up disk access. libata uses 16-bit I/O unconditionally for PIO data transfers...

...but you are using DMA for data transfers, which is light years faster than PIO anyway.


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