Re: VIA VT82C686X

[Andre Hedrick <andre@linux-ide.org>]

On Tue, 30 Jan 2001, David D.W. Downey wrote:

> 
> Woohoo! Just found out that ATA66 on the VIA aint too great.
> 
> I set the kernel boot options idebus=66 ide0=ata66 enabling ATA66

Sorry but you are not right in this world .......

Where in you manual does is "QUOTE" you can drive the ATA/IDE bus at 66MHz?


> according to dmesg. The HDD is a WDC UDMA100 30.5GB drive. I retried the
> 
> dd if=/dev/hda7 of=/tmp/testing2.img bs=1024k count=2000 
> 
> on one VT, ran renice -20 on the dd process then ran procinfo on another
> and top on a 3rd. I logged into a fourth and ran sync;sync;sync;sync;sync.
> 
> After @30 seconds the machine became totally unresponsive, locking up all
> but the current VT.
> 
> I let it sit there and waited until the dd finished in case the renice was
> what killed the control. When dd finished I tried running any type of
> command but the tty was completely frozen. All other VTs were non
> responsive as well.
> 
> 
> This is gonna be fun when I test the Promise controller. hehe
> 
> 
> David D.W. Downey
> 
> 
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Andre Hedrick
Linux ATA Development

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