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SubjectRe: 2.6.13 brings buffer underruns when burning DVDs at high speeds (16x)
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Hummm Okay. After making some ugly changes (I basically reverted all
the /drivers/block subdir to version 2.6.12.6), I still have buffer
underruns.

Does anyone know where it could come from ? I would say that I am a
little bit stuck now. I am quite sure that it is also not comming from
the devices driver (ide-cd, usb-storage...) as I tried with different
devices on different ports (mostly IDE and emulated SCSI via USB) with
the same result.

Note: This is also happening with k3b ;-)

On Mon, 2005-09-12 at 14:11 +0200, Mathieu Fluhr wrote:
> Hello all,
>
> It seems that something has been broken when passing from 2.6.12 to
> 2.6.13 regarding the SCSI burning engine. When burning a DVD at 16x
> (with ide-cd SEND_PACKET command, or with the SG interface, no matter
> the driver used), you get tons of buffer underruns. This was not
> appearing in 2.6.12.
>
> I would suspect something in the block devices driver, but I am not
> really sure... and I did not have enough time yet to look deeply in the
> source code ;-)
>
> Best Regards,
> Mathieu
>
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