freebsd stable - Apr 2008 - S-ATA DVD drive problems

Hello,

I have severe problems with my optical drive(s) support.
The drive is on an ICH9 in AHCI mode.
I tested different writers, all show the same problem.
When the system boots with a CD in the drive or if I mount the acd0 
device I see acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x11 ascq=0x05
or:
acd0: FAILURE - READ_DVD_STRUCTURE ILLEGAL REQUEST asc=0x30 ascq=0x02
acd0: FAILURE - READ_BUFFER ILLEGAL REQUEST asc=0x24 ascq=0x00

When I mount the drive with /dev/cdX (atapicam) I don't see any error!

burncd fails completely, cdrecord seems to work.

I don't understand why the scsi path to the drive is working while the 
(native) atapi path is broken...

I have some oddities when accessing the drive with brasero via HAL, but 
I'm not familar with HAL at all so this is probably another matter.

Any hints highly appreciated!

Thanks,

-Harry

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On Wed, Apr 02, 2008 at 11:12:44AM +0200, Harald Schmalzbauer
wrote:
> Hello,
>
> I have severe problems with my optical drive(s) support.
> The drive is on an ICH9 in AHCI mode.
>
> I tested different writers, all show the same problem.
> When the system boots with a CD in the drive or if I mount the acd0 device 
> I see acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x11 ascq=0x05
> or:
> acd0: FAILURE - READ_DVD_STRUCTURE ILLEGAL REQUEST asc=0x30 ascq=0x02
> acd0: FAILURE - READ_BUFFER ILLEGAL REQUEST asc=0x24 ascq=0x00
Are the errors harmful?  Historically these errors haven't been.  You
state later "burncd doesn't work, but cdrecord does".  The errors
appear
to indicate that certain ATAPI commands are being rejected by your drive
(or possibly due to the physical medium inserted in it).

I'd try Googling for "freebsd sata ILLEGAL REQUEST" and see for
yourself.

Linux's kernel reports similar errors, though in a different way, since
they use an ATA-to-SATA conversion driver for hard disks and CDROMs:

http://linux.derkeiler.com/Mailing-Lists/Kernel/2006-03/msg02337.html
> When I mount the drive with /dev/cdX (atapicam) I don't see any error!
Possibly atapicam(4) isn't using those ATA commands, or is hiding the
errors from you.
> burncd fails completely, cdrecord seems to work.
>
> I don't understand why the scsi path to the drive is working while the 
> (native) atapi path is broken...
-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |