Re: System hangs when using USB 3.0 HD with on Ubuntu

Alan Stern
2010-04-21T19:07:27Z

On Wed, 21 Apr 2010, Jonas Schwertfeger wrote:

> On 04/21/2010 08:17 PM, Mark Lord wrote:
>
> > Let's try again. Does the attached copy of hdparm work for everybody
> > now? It uses ATA_16 by default, for everything.
>
> No, it doesn't:
>
> /dev/sdb:
> outgoing cdb: 85 08 2e 00 00 00 01 00 00 00 00 00 00 40 ec 00
> data: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

That line is supposed to be the data returned by the drive? It sure
doesn't look right.

Jonas, can you run the same test, but this time with the drive attached
to your EHCI controller, and get a usbmon log?

Alan Stern