Lots of READ_BIG errors on my new cd drive

[Doug Barton]

Chuck Swiger wrote:
> Doug Barton wrote:
> [ ... ]
>> I get a lot of errors that look like this:
>>
>> acd0: FAILURE - READ_BIG HARDWARE ERROR asc=0x3e ascq=0x02
>>
>> On CDs and DVDs that I've recorded on other drives, that I've recorded
>> on this drive, and commercial ones.
>>
>> Any ideas on where to start looking?
> 
> Does toggling:
> 
>    hw.ata.ata_dma="0"
> 
> ...in loader.conf make a difference?

I think you mean hw.ata.atapi_dma, and no, even with both set to 0, it
still gives the same error.

> I'd imagine you'd like DMA to work but knowing whether the problem goes
> anyway with DMA off is useful to test.  For that matter, does a careful
> application of compressed air to remove any dust or lint inside the
> drive help?

It's a brand new laptop, so I can see the lens, and it's not dirty.

> Also, is this problem specific to -CURRENT or reproducible elsewhere?

I can try 6-stable on the same laptop and get back to you.

Doug

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