Re: Fujitsu Hard drives & Linux - problems

From: Shawn Starr (
Date: Thu Aug 03 2000 - 19:32:53 EST

I don't have windows ;-) not that I couldn't install it on the other HD
i'd have to partition and I dont wanna :-)

I dont know if this drive should be "blacklisted" since it is a UDMA33/66
drive on a real PC (unlike this Pentium 200 w/o MMX)

Yes, If I copy from one channel to the other i get IRQ DMA timeouts from
the Fujitsu drive. The WD and CD-ROM are on the primary channel the
Fujitsu is on the secondary channel as master. I dont see how the CD-Rom
would affect the drive.

On Thu, 3 Aug 2000, Benson Chow wrote:

> Hmmm.. that's strange. It's possible your other drive "should" also be on
> the DMA "blacklist"... I don't know -
> I think a friend of mine also has a fujitsu 6.4GB drive, and he never got
> it working with DMA under windows (btw, does it work under windows
> even?). He has a Via-chipset though and not an Intel.
> I've run DMA over these chipsets:
> 440FX / PIIX3 "Natoma" "Venus" (but it corrupts data with my Maxtor UDMA!)
> 440FX / PIIX3 Dual motherboard (Runs fine with my Maxtor UDMA)
> 440BX / PIIX4 Dual motherboard (Fujitsu)
> I could try the fujitsu on the PIIX3 and see what it does, but it should
> be fine...
> Can you cause DMA trouble if you copy from the fujitsu to the other
> channel? Reading should also cause DMA transfers to occur...
> BTW: I've only had this trouble you're seeing on CDROM drives. I tracked
> it down to the CDROMs because I actually have a CDROM that's implemented
> "correctly" and won't DMA timeout...
> -bc
> On Thu, 3 Aug 2000, Shawn Starr wrote:
> >
> > The motherboard I have is an Acer AP53:
> > I flashed the BIOS to the latest without issue
> > (AP53R3C0)
> >
> > The problem can be reproduced when you copy from the other channel to the
> > channel the Fujitsu drive is on (HDA --> HDC) DMA timeouts happen.
> >
> > It has an 430HX PCI chipset and 2 USB ports which Linux detects with USB
> > support compiled in.
> >

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