Re: What's with libata and DVDs ?

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On Sat, 06 Dec 2008 23:47:09 -0500
Mark Lord <liml@xxxxxx> wrote:

> Attempting to play a known-good DVD-video in MythTV-0.21
> using libata in kernel 2.6.27.7 :
> 
> sr 4:0:0:0: [sr0] unaligned transfer

Your system somehow generated a scsi request which was not 2K aligned.
The scsi mid layer then reported that and added padding - which
presumably didn't help because the command shouldn't have been misaligned
in the first place.

If you strace it do you see any misaligned requests coming from user
space - also btw is the cd layer reporting the sector size wrong
anywhere ?

Alan
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