I am trying to disable DMA but I can't seem to find the correct parameter=
=2E I=20
have disabled it in the BIOS but the kernel insists on reporting:

"... BIOS settings: hda:DMA, hdb:pio"
"... BIOS settings: hdc:DMA, hdd:DMA"

I tried using "ide0=3Dnodma ide1=3Dnodma" as well as "hda=3Dnodma hdc=3Dn=
odma=20
hdd=3Dnodma" but none of these seem to work. When the computer boots, the=
 BIOS=20
does report all drives to be in PIO mode.

On Saturday 07 December 2002 05:20, Fred A. Miller wrote:
> On Friday 06 December 2002 7:59 pm, Alexandros Karypidis wrote:
> > Hello all,
> >
> > I have a system which has been running SuSE 8.0 and would like to ins=
tall
> > 8.1. I have to install via the network, so I am trying to boot a syst=
em
> > via the boot disks provided in SuSE 8.1. The system hangs at the poin=
t
> > where the IDE subsystem is initialized. The last thing I see is:
> >
> > [...]
> > VP_IDE: chipset revision 6
> > VP_IDE: not 100% native mode: will probe irqs later
> > VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci:00:07.1
> > VP_IDE: ATA-66/100 forced bit set (WARNING)!!
> > =09ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:pio
> > =09ide1: BM-DMA at 0xc008-0xc00f, BIOS settings: hdc:pio, hdd:pio
> >
> > Is this a known issue and is there a work-around?
>
> There are 2 issues. First, it has a VIA chipset, which is problematic, =
the
> other is that a lot of people have reported that with ASUS and other MO=
Bs
> using the VIA chipset, they have to disable DMA.
>
> Fred

--=20
To err is human, but to forgive is beyond the scope of the Operating Syst=
em...

=C1=EB=DD=EE=E1=ED=E4=F1=EF=F2 =CA=E1=F1=F5=F0=DF=E4=E7=F2
=D0=E1=ED=E5=F0=E9=F3=F4=DE=EC=E9=EF =C8=E5=F3=F3=E1=EB=DF=E1=F2
=D4=EC=DE=EC=E1 =CC=E7=F7/=EA=FE=ED =C7/=D5, =D4=E7=EB=E5=F0=E9=EA=EF=E9=ED=
=F9=ED=E9=FE=ED & =C4=E9=EA=F4=FD=F9=ED

Alexandros Karypidis
University of Thessaly
Computer & Communications Engineering dept.


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