Thanks for the reply Tejun.

I gave the 2.6.30-2 kernel a try and I received the same error message
as quoted below - it just happened a bit later on in the boot process.
(not at the "starting.." screen)

Chris.

On Wed, Aug 12, 2009 at 12:19 AM, Tejun Heo [off-list ref] wrote:

Chris K wrote:

quoted

Hello Tejun,

I was hoping you'd have some feedback or suggestions relating to the
eSata port multiplier errors I am receiving below.

I have a Silicone Image 3132 chipset (PCI-E 2-port eSATA controller
card) and a Sans Digital TRM4-B 4x hard drive enclosure with 4x 1TB WD
Caviar Green drives. I am having difficulty getting drives detected with
eSATA and Port Multiplier (PMP) in Ubuntu 9.04 running the
2.6.28-14-server (or generic) kernel. I've also tried
2.6.28-11-server/generic and 2.6.31-5-generic with no luck .

On a Windows machine everything works correctly. When I boot my Ubuntu
machine (or plug in the eSATA cable), it scans the external drives
repeatedly (LEDs go on an off a number of times) and eventually times
out with the following messages:

[59719.989422] ata7: irq_stat 0x01100010, PHY RDY changed
[59719.989477] ata7: SError: { 10B8B }
[59722.781043] ata7: exception Emask 0x10 SAct 0x0 SErr 0x0 action 0xe
frozen
[59722.781112] ata7: irq_stat 0x00b40090, PHY RDY changed
[59791.300259] ata7.15: failed to write PMP_FEAT_EN (Emask=0x40)
[59791.300324] ata7: failed to recover PMP after 5 tries, giving up
[59791.300323] ata7: exception Emask 0x3 SAct 0x0 SErr 0x0 action 0x6
frozen t4
[59791.300483] ata7: irq_stat 0x00060002, device error via D2H FIS

I've attached my dmesg as well. Any help would be greatly appreciated.

* Can you please cc linux-ide@vger.kernel.org?

* Can you please try 2.6.30?

Thanks.

--
tejun