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List:       suse-linux-e
Subject:    Re: [SLE] SuSE 8.1 boot disk hangs
From:       Alexandros Karypidis <karypid () inf ! uth ! gr>
Date:       2002-12-07 13:33:23
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I am trying to disable DMA but I can't seem to find the correct parameter. I 
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=nodma ide1=nodma" as well as "hda=nodma hdc=nodma 
hdd=nodma" but none of these seem to work. When the computer boots, the BIOS 
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 install
> > 8.1. I have to install via the network, so I am trying to boot a system
> > via the boot disks provided in SuSE 8.1. The system hangs at the point
> > 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)!!
> > 	ide0: BM-DMA at 0xc000-0xc007, BIOS settings: hda:DMA, hdb:pio
> > 	ide1: 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 MOBs
> using the VIA chipset, they have to disable DMA.
>
> Fred

-- 
To err is human, but to forgive is beyond the scope of the Operating System...

Αλέξανδρος Καρυπίδης
Πανεπιστήμιο Θεσσαλίας
Τμήμα Μηχ/κών Η/Υ, Τηλεπικοινωνιών & Δικτύων

Alexandros Karypidis
University of Thessaly
Computer & Communications Engineering dept.


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