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SubjectRE: Hard Disk Slowdown w/new mobo?
On Sun, 1 Oct 2000, Alexander Valys wrote:

> Date: Sun, 1 Oct 2000 19:52:10 -0400
> From: Alexander Valys <avalys@optonline.net>
> To: Mark Hahn <hahn@coffee.psychology.mcmaster.ca>
> Cc: linux-kernel@vger.kernel.org
> Subject: RE: Hard Disk Slowdown w/new mobo?
>
> I'm actually running 2.2.16, but I'll give it a try.
>
> -----Original Message-----
> From: Mark Hahn [mailto:hahn@coffee.psychology.mcmaster.ca]
> Sent: Sunday, October 01, 2000 19:41
> To: Alexander Valys
> Subject: Re: Hard Disk Slowdown w/new mobo?
>
>
> > ATA66 cable, and are ATA66 capable drives, but they only run at around 2.5
> > mb/sec (hdparm -t). Any way to speed these things up? I've heard they
>
> and when you "hdparm -d1"? I'm guessing you're running a crappy
> old 2.2 kernel that isn't smart enough to do this automatically.
>
>

FYI...

AFAIK the new Apollo south bridge, VT82C686A, won't do DMA in 2.2.x...
w/o some hacking...
(Folks might want a back port of 2.3/2.4 via82C586.c for 2.2)

hdparm -d1, kernel 2.2.16, gives
hda: dma_intr: status=0x51 { DriveReady SeekComplete Error )
hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
hda: DMA disabled
ide0: reset: success

Once back in PIO mode it runs fine but slow

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-----------------------------------------------------------------
John Heil
South Coast Software
1-714-774-6952
kerndev@scsoftware.tea-house.com
johnhscs@scsoftware.tea-house.com
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