Re: Failure with SATA DVD-RW

[Jeff Garzik <jeff@garzik.org>]

Tom Lanyon wrote:
> Hi list,
> 
> Just built a new machine with a Pioneer SATA DVD drive and linux
> distro install CDs are not recognising it. The drive is connected to
> the ICH9R southbridge of an Intel P35 chipset motherboard.
> 
> I can boot from the CD/DVD so the drive itself is working, but the
> kernel reports the following:
> 
> scsi4: ahci
> ata5: SATA link up at 1.5 Gbps (SStatus 113 SControl 300)
> ata5.00: ATAPI, max UDMA/66
> ata5.00: qc timeout (cmd 0xef)
> ata5.00: failed to set xfermode (err_mask=0x104)
> ata5.00: limiting speed to UDMA/44
> ata5: failed to recover some devices, retrying in 5 secs
> ata5: port is slow to respond, please be patient (Status 0x80)
> ata5: port failed to respond (30 secs, status 0x80)
> ata5: COMRESET failed (device not ready)
> ata5: hardreset failed, retrying in 5 secs
> ata5: SATA link up at 1.5 Gbps (SStatus 113 SControl 300)
> ata5.00: ATAPI, max UDMA/66
> ata5.00: qc timeout (cmd 0xef)
> ata5.00: failed to set xfermode (err_mask=0x104)
> ata5.00: limiting speed to PIO0
> ata5: failed to recover some devices, retrying in 5 secs
> ata5: port is slow to respond, please be patient (Status 0x80)
> ata5: port failed to respond (30 secs, status 0x80)
> ata5: COMRESET failed (device not ready)
> ata5: hardreset failed, retrying in 5 secs
> ata5.00: ATAPI, max UDMA/66
> ata5.00: qc timeout (cmd 0xef)
> ata5.00: failed to set xfermode (err_mask=0x104)
> ata5.00: disabled
> 
> This is 2.6.19 (probably with a few distribution patches) on an
> install CD. I also tried setting the SATA controller to a 'compatible
> IDE' mode and the hard drives and DVD drive are detected and work
> properly.
> 
> Any ideas what to try to get it working under AHCI?

How does a remotely recent kernel behave?  :)

There have been a metric ton^2 of fixes in this specific area, in the 12 
months since 2.6.19 came out.

	Jeff