Unstopable ata1: FAILURE - non aligned DMA transfer attempted loop

[Anish Mistry]

On Wednesday 31 October 2007, Anish Mistry wrote:
> When trying to access a scratched DVD I get the following messages
> that loop forever until I reboot the machine.  The drive is  
> unresponsive so that's the only way to remove the disc.  Any ideas? 
>
> http://am-productions.biz/debug/pciconf.txt
>
> Running a recent -CURRENT.  I'm also getting this same issue on
> RELENG_7 on a different machine.
>
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
> Oct 31 12:01:29 littleguy kernel: ata1: FAILURE - non aligned DMA
> transfer attempted
> Oct 31 12:01:29 littleguy kernel: acd0: setting up DMA failed
Just an update.  I played through everything on the DVD on a set-top 
DVD player and it played through everything.  There were a couple 
hickups, but it played through them fine.  Is anyone else seeing this 
problem?   It's pretty easy to reproduce with k9copy.

Thanks,


-- 
Anish Mistry
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