Re: hangs on Nforce2 & kernel 2.6.4

[Roberto Sanchez <rcsanchez97@yahoo.es>]

Dominique Dumont wrote:
> Matthijs <vanaalten@hotmail.com> writes:
>
>
> > > Yes. It turned out that the default DMA setting was too high on my machine
> > > (Asus A7n8x deluxe nforce2).
> >
> > I'm wondering: was the DMA setting too high for your hard disk? I.e. a
> > UDMA-3 hard disk running on UDMA-5, or is there a problem in the
> > kernel that it can't run UDMA-4/5 on NForce2-boards?
>
>
> As my drive is a brand new Seagate barracuda ST3160023A. The kernel reports
>   hda: 312581808 sectors (160042 MB) w/8192KiB Cache, CHS=19457/255/63, UDMA(100)
>
> According to seagate [1], this drive has a max transfert rate of
> 100MB/s.  So I think there's a problem with the kernels (both 2.4.25
> and 2.6.3) that can't run run UDMA-4/5 on NForce2-boards.
>
> I've already looged a bug to debian [2].
>
> Cheers
>
>
> [1] http://www.seagate.com/cda/products/discsales/personal/family/0,1085,578,00.html
> [2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=239074

Same thing here (Western Digital Drive):

$ dmesg |grep UDMA
NFORCE2: 0000:00:09.0 (rev a2) UDMA133 controller
hda: 234375000 sectors (120000 MB) w/8192KiB Cache, CHS=65535/16/63, 
UDMA(100)

-Roberto Sanchez

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