Re: DMA error

[Brian Nelson <nelson@bignachos.com>]

On Wed, Jul 11, 2001 at 06:14:08PM -0400, Neil Conway wrote:
> Hi,
> 
> I've recently been encountering some HDA errors/warnings that might be
> serious. I'm using the following hdparm script:
> 
>     hdparm -d1 -u1 -m16 -c3 /dev/hda
> 
> This script is executed on startup. I see the following errors in
> `dmesg`:
> 
>     hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>     hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>     hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>     hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>     hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>     hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>     hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>     hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
>     ide0: reset: success
> 
> What do these errors mean? How serious is the problem? What should I do
> to fix it?

Don't run that hdparm script.  ;)

> I can find the specs on the IDE controller + hard drive, but I don't
> have them handy -- so tell me if they'd be helpful and I'll dig them up.

I'd guess it's a problem with your hard disk, or more likely your ide
cable.  If you only see those error after running your hdparm command,
it's probably because the cable can't handle the transfer rates.

-- 
Brian Nelson <nelson@bignachos.com>