Re: [TCLUG:18650] ATA/66 - DMA - whatever

["Thomas T. Veldhouse" <veldy@veldy.net>]

I thought the ASUS boards used the VIA chipset (686A Southbridge) for IDE?
VIA driver support is flaky under most operating systems when it comes to
UDMA - except for Windows 9x and FreeBSD - where it works nicely.

Tom Veldhouse
veldy@veldy.net

----- Original Message -----
From: Gabe Turner (officer) <dopp@acm.cs.umn.edu>
To: <tclug-list@mn-linux.org>
Sent: Wednesday, June 07, 2000 10:09 AM
Subject: [TCLUG:18650] ATA/66 - DMA - whatever


> Ok, I'm not ashamed to admit that I know very little about some of the new
> fangled IDE tech out there.  All I know is that it sucks that I get these
> errors
>
> hda: status timeout: status=0xd0 { Busy }
> hda: no DRQ after issuing WRITE
> ide0: reset: success
>
> all the time!  Also, my machine slows to a bloody crawl when I'm writing
from
> CD to HDD or reading from CD or basically when ever I use my IDE bus.
Now,
> I know IDE is fairly CPU/memory intensive.  Both of these devices are on
the
> same IDE controller (I'd seperate them, but my place of employment doesn't
have
> any spare IDE cables at the moment).  One thing I've noticed, is that if
I'm
> copying from my 50x IDE CDROM to my 8x SCSI CDR, it starts out nice and
speedy,
> maybe even for a couple of sequencial burns, but then it slows to a crawl
and
> the burn times out and dies.  At this point, top reveals that my system is
> swapping out to disk a lot.
>
> Anyway, while talking to a co-worker about this, he mentioned I give
hdparm a
> shot.
>
> Info:  I'm running kernel verison 2.4.0-test1 and have all of the fancy
IDE and
> stuff compiled in.  I've got an Athlon 600, ASUS mobo with the AMD Viper
IDE
> controller.  At least I think it's the Viper.  I get this in my logs:
>
> ide: Assuming 33MHz system bus speed for PIO modes; override with
idebus=xx
> VP_IDE: IDE controller on PCI bus 00 dev 21
> VP_IDE: chipset revision 6
> VP_IDE: not 100% native mode: will probe irqs later
>     ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA
>     ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:pio, hdd:pio
>
> In my BIOS, I've got S.M.A.R.T enabled on my drive.
> The drive in question is a 13GB Seagate Medalist Pro, 7200 RPM, ATA/66.
>
> I've checked out www.linux-ide.org and it seems that my chipset may be
> supported in Linux.  This is on the list
>
> AMD7409 VIPER
>
> Now, my question is this: Has anyone on the list delved into the realm of
hdparm
> and have any relavent info?  I just want better performance, and I thought
that
> the new kernel options might do it, but apparently not.
>
> Any advice would be greatly appreciated.
>
> TIA!
>
> Gabe
> --
> --------------------------------------------------------------------------
------
> Gabe Turner X-President, ACM @ U of MN      dopp@acm.cs.umn.edu
>
> "Wanna buy a rubber walrus protector?!"
> - Mr. Horse in "Rubber Nipple Salesmen"
> --------------------------------------------------------------------------
------
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tclug-list-unsubscribe@mn-linux.org
> For additional commands, e-mail: tclug-list-help@mn-linux.org
>
>