Re: DMA problems
On Fri, 2005-07-08 at 21:34 -0400, Gregory Seidman wrote:
> On Fri, Jul 08, 2005 at 10:22:21PM +0100, David Pye wrote:
> } On Friday 08 July 2005 16:30, Gregory Seidman wrote:
> } > I can't get DMA working at all on my dual G4 tower. When I try to turn it
> } > on with hdparm (hdparm -d1 /dev/hda) I get errors on the console and it
> } > gets turned off again. Is there some module I should have loaded? This is
> } > really distressing; my swap partition is on this non-DMA drive, so things
> } > get VERY SLOW when I do anything memory-intensive (like running KDE,
> } > Kaffeine, xchat, mozilla, gaim, and several xterms all at once). Please
> } > help!
> } >
> } > --Greg
> }
> } Well, you did quite well with the vital stats, BUT...
> }
> } What are the errors you see on the console when you try to enable dma?
> } What (if anything) ends up in dmesg when you try to enable dma?
>
> Everything that appeared on the console seems to have made it into dmesg:
>
> hda: Enabling Ultra DMA 4
> ide-pmac lost interrupt, dma status: 8000
> hda: lost interrupt
> hda: dma_intr: status=0x58 { DriveReady SeekComplete DataRequest }
Strange... Looks like your disk or cable has a problem...
Ben.
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