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[solazs <1222002@xxxxxxxxxxxxxxxxxx>]

Hi!

I've experienced this problem on my Dell N7110. It's been present in 13.04 and in 13.10 dev release, too.
Attached some info from dmesg, which was written in the moment of the USB 3.0 disconnect.

Will post apport info, too.

** Attachment added: "debug info from dmesg"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1222002/+attachment/3814753/+files/dmesg.txt

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https://bugs.launchpad.net/bugs/1222002

Title:
  USB 3.0 Disconnects on Ubuntu 12.04 LTS

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  After a clean install and upgdate of Ubuntu 12.04 LTS I can not use my
  USB 3.0 ports to restore files from my backup disk.

  uname -a
  Linux csipetke 3.8.0-30-generic #44~precise1-Ubuntu SMP Fri Aug 23 18:32:41 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  The errors I get from command line:

  cp: reading `gsinai/.recently-used.xbel.82Z5BV': Input/output error
  cp: failed to extend `/dev/null': Input/output error

  dmesg:
  [ 2050.726287] Buffer I/O error on device dm-0, logical block 296747919
  [ 2050.726290] lost page write due to I/O error on dm-0

  syslog:
  Sep  7 10:55:59 csipetke kernel: [  650.040129] usb 3-12: reset high-speed USB device number 4 using xhci_hcd
  Sep  7 10:55:59 csipetke kernel: [  650.062917] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8807f2534600
  Sep  7 11:19:24 csipetke kernel: [ 2050.726287] Buffer I/O error on device dm-0, logical block 296747919
  Sep  7 11:19:24 csipetke kernel: [ 2050.726290] lost page write due to I/O error on dm-0

  The problem is 100% reproducable, please tell me if you need more
  information.

  The same disk works fine with my laptop running the same version of Ubuntu.
  --- 
  ApportVersion: 2.0.1-0ubuntu17.4
  Architecture: amd64
  DistroRelease: Ubuntu 12.04
  InstallationMedia: Ubuntu 12.04.3 LTS "Precise Pangolin" - Release amd64 (20130820.1)
  MarkForUpload: True
  Package: linux-image-3.8.0-30-generic 3.8.0-30.44~precise1
  PackageArchitecture: amd64
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 3.8.0-30.44~precise1-generic 3.8.13.6
  Tags:  precise running-unity
  Uname: Linux 3.8.0-30-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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