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[Launchpad Bug Tracker <1217627@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1217627

Title:
  [Lenovo ThinkPad T420] Ubuntu 13.04 freezes when copying large amount
  of data from one USB drive to another

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  When copying about 1.5TB of data from one 3TB USB drive to another the
  system totally freezes requiring a hard reset (power button or sysrq-
  alt-b

  Details:
  I have a Lenovo T420 laptop.  I am trying to copy data from one USB drive to another but after some time has elapsed (up to 2 hours) the entire system becomes unresponsive.  I am usually only running a web browser (happens with both Firefox and Chrome).  The mouse cursor is still active for a few minutes but nothing else is responsive.  The mouse cursor will then also vanish and trying to change to a terminal (ctrl-alt-F1 for example) is not possible.
  The laptop BIOS is up to date.

  Things I have done:
  - File tranfer was using Nautilius so installed Nemo but same issue.  
  - I set up a netconsole and monitored remotely.  The plug in of the USB drives was detected but nothing else sent to remote console after the hang.
  - I can still ping the laptop but cannot ssh into it after the hang
  - I can see nothing obvious in syslog or dmesg that gives an indication of what is wrong but I don't really understand most of what is in there anyway.
  - I thought initially that it was Firefox so totally removed and just used Chrome.  Issue persisted.  
  - I ran memtest86+ which showed no errors so RAM is not the issue.
  - I ran installed cpuburn and ran burnP6.  CPU maxed out but no hang. So CPU isnot the issue
  - I then thought it may be an issue with my install do i did a fresh install of Ubuntu 13.04, did all updates and tried again.  Same result
  - I have a HP 6730s laptop so I did a fresh install of 13.04 and tried on it.  Same result, hangs after about 20 minuts or so of copying files so the issue is not specific to my Lenovo laptop
  - I did the transfer on another laptop I have that is running Windows XP and tranfer is fine.  So issue is not with USB drives (unless WIndows masks any issues somehow)

  Output of cat /proc/version_signature
  Ubuntu 3.8.0-29.42-generic 3.8.13.5

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-29-generic 3.8.0-29.42
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic i686
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  marty      1931 F.... pulseaudio
  Date: Wed Aug 28 10:03:13 2013
  HibernationDevice: RESUME=UUID=a8dd9ab0-fa20-4a6c-9c60-a01ac78ba212
  InstallationDate: Installed on 2013-08-26 (1 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
  MachineType: LENOVO 4180AF7
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic root=UUID=63915d14-86d4-4029-8f38-f4f84381bba5 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-29-generic N/A
   linux-backports-modules-3.8.0-29-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:
   
  dmi.bios.date: 10/06/2011
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 83ET65WW (1.35 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 4180AF7
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr83ET65WW(1.35):bd10/06/2011:svnLENOVO:pn4180AF7:pvrThinkPadT420:rvnLENOVO:rn4180AF7:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4180AF7
  dmi.product.version: ThinkPad T420
  dmi.sys.vendor: LENOVO

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