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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1556782

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1556782

Title:
  USB3 not working

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I am constantly getting these messages in dmesg:
  [114755.239681] usb 2-1: reset SuperSpeed USB device number 2 using xhci_hcd
  [114760.252354] usb 2-1: device descriptor read/8, error -110
  [114760.353433] usb 2-1: reset SuperSpeed USB device number 2 using xhci_hcd
  [114765.366486] usb 2-1: device descriptor read/8, error -110
  [114765.518703] sd 6:0:0:0: [sdf] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
  [114765.518705] usb 2-1: USB disconnect, device number 2
  [114765.518707] sd 6:0:0:0: [sdf] CDB: 
  [114765.518708] Write(10): 2a 00 3a 36 db b7 00 00 10 00
  [114765.518712] blk_update_request: I/O error, dev sdf, sector 976673719
  [114765.518720] Aborting journal on device sdf1-8.
  [114765.524571] sd 6:0:0:0: [sdf] FAILED Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK

  I am trying to use a Toshiba external disk, in a usb3 port which I use for backup. It worked flawlessly on an old version of Redhat, but on moving to a new server, Intel S1200RP with updated firmware, I am in a world of pain. I have switched off standby for usb on boot, I have ensured that power is continually on for all usb ports. 
  I have tried a number of kernels, currently 3.19.0-031900rc4-lowlatency which had been less bad, but am still getting this fault.

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