Re: ahci fails with SATA DVD drive, IDE mode works

[Tejun Heo <tj@kernel.org>]

Hello,

Chuck Ebbert wrote:
>> How did it go?
> 
> I found another machine with the same chipset and a different ATAPI SATA
> drive; that one works okay in ahci mode.

Well, there's no way all ICH9Ms are broken, so I'm afraid 'the same
chipset' is a tad bit too wide unless it was the same board/machine.

> There are no messages at all between "EH complete" and the string of SCSI
> error messages:
...
> ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
> ata2.00: cmd a0/01:00:00:00:02/00:00:00:00:00/a0 tag 0 dma 512 in
>          cdb a1 08 2e 00 00 00 00 00  40 ec 00 00 00 00 00 00
>          res 40/00:02:00:08:00/00:00:00:00:00/a0 Emask 0x4 (timeout)
> ata2.00: status: { DRDY }
> ata2: hard resetting link
> ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata2.00: configured for MWDMA2
> ata2: EH complete

Here, BLANK has timed out but the device was recovered okay.

> sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
> sr 1:0:0:0: [sr0] Sense Key : Illegal Request [current] 
> sr 1:0:0:0: [sr0] Add. Sense: Logical block address out of range
> end_request: I/O error, dev sr0, sector 0

And after that, the media can't be read, so this one seems normal.

Thanks.

-- 
tejun