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[Michael <1291081@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "dmesg.txt"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1291081/+attachment/4022858/+files/dmesg.txt

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https://bugs.launchpad.net/bugs/1291081

Title:
  Can't mount USB3 flash drive

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  While trying to mount a USB3 flash drive I get errors like:

  [   88.961035] usb 4-2: reset SuperSpeed USB device number 2 using xhci_hcd
  [   88.976746] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88020f4465c0
  [   88.976757] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88020f446580
  [   88.977319] sd 6:0:0:0: [sdb] Unhandled error code
  [   88.977321] sd 6:0:0:0: [sdb]  
  [   88.977323] Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
  [   88.977324] sd 6:0:0:0: [sdb] CDB: 
  [   88.977325] Read(10): 28 00 00 00 12 53 00 00 f0 00
  [   88.977331] end_request: I/O error, dev sdb, sector 4691

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-17-generic 3.13.0-17.37
  ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6
  Uname: Linux 3.13.0-17-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  michael    1943 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Mar 11 23:22:03 2014
  InstallationDate: Installed on 2014-03-07 (4 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140306)
  MachineType: LENOVO 34481Y2
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=d6f1faeb-4441-407a-a989-97022eb7a6a6 ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-17-generic N/A
   linux-backports-modules-3.13.0-17-generic  N/A
   linux-firmware                             1.126
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/19/2014
  dmi.bios.vendor: LENOVO
  dmi.bios.version: G6ETA3WW (2.63 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 34481Y2
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrG6ETA3WW(2.63):bd02/19/2014:svnLENOVO:pn34481Y2:pvrThinkPadX1Carbon:rvnLENOVO:rn34481Y2:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 34481Y2
  dmi.product.version: ThinkPad X1 Carbon
  dmi.sys.vendor: LENOVO

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