On Thu, 27 Sep 2012, Sarah Sharp wrote: > On Wed, Sep 26, 2012 at 02:03:06PM -0400, Don Zickus wrote: > > Hi Sarah, > > > > As discussed privately, here is the debug output of what happens when I > > plug in the hard drive into my panther point system. > > > > kernel based off of greg's usb-next (0220a3f01a) with CONFIG_USB_DEBUG and > > CONFIG_USB_XHCI_HCD_DEBUGGING turned on. > > Thanks for the dmesg Don. Unfortunately, it doesn't tell me anything > terribly interesting. The address device control message completed with > a transfer error twice, and the USB core gave up on it. > > I'll have to see if I can figure anything out with a USB bus analyzer > when I get the drive next week. Probably the device was already hung. The log showed that an earlier transfer completed with a STALL. The reason wasn't apparent, although a usbmon trace might give a clue. It might also show why the device had to be reset. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
