Re: Failure with SATA DVD-RW

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To: <linux-kernel@...>
Date: Wednesday, December 5, 2007 - 9:33 pm

Tom Lanyon <tomlanyon <at> gmail.com> writes:

Looks like it is trying to set transfer mode to UDMA/66 and failing. After 
that it tried UDMA/44 and failed again. Next UDMA/66 again with unsurprising 
result - failed. After that PIO0 which seems to cause some kind of trouble, 
then it tries UDMA/66 again, and I am not stating the result again :) ! 


I recall reading somewhere - the Pioneer drive needs UDMA/33 which it did not 
try in your case - need to some how have it try UDMA/33 but I don't find a 
boot parameter which will do that. So may be adding a quirk for this device to 
limit the xfer mode to 33 may work. 

What does your dmesg output for the drives look like when you run in IDE 
compat mode? (Particularly the DMA for this drive?)

Parag

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Messages in current thread:
Re: Failure with SATA DVD-RW, Parag Warudkar, (Wed Dec 5, 9:33 pm)
Re: Failure with SATA DVD-RW, Andrew Morton, (Thu Dec 6, 8:39 pm)
Re: Failure with SATA DVD-RW, Andrew Morton, (Thu Dec 6, 8:40 pm)
Re: Failure with SATA DVD-RW, Tejun Heo, (Mon Dec 10, 5:45 am)