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[DUVAL Jean-Pierre <1404407@xxxxxxxxxxxxxxxxxx>]

Here is the explained stack of the kernel panic according to the source files for 3.13.x
----------------------------------------------------------------------------------------------------------------------
bio_endio (line unknown) : http://lxr.free-electrons.com/source/fs/bio.c?v=3.13#L1712
req_bio_endio (line 134) : http://lxr.free-electrons.com/source/block/blk-core.c?v=3.13#L134
blk_update_request (line 2386) : http://lxr.free-electrons.com/source/block/blk-core.c?v=3.13#L2386
blk_update_bidi_request ( line 2441) : http://lxr.free-electrons.com/source/block/blk-core.c?v=3.13#L2441
blk_end_bidi_request (line 2528) : http://lxr.free-electrons.com/source/block/blk-core.c?v=3.13#L2528
blk_end_request (ligne 2600) : http://lxr.free-electrons.com/source/block/blk-core.c?v=3.13#L2600
scsci_io_complementation (line 829) : http://lxr.free-electrons.com/source/drivers/scsi/scsi_lib.c?v=3.13#L829
scsi_finish_command (line 819) : http://lxr.free-electrons.com/source/drivers/scsi/scsi.c?v=3.13#L819
scsi_softirq_done (line 1520) : http://lxr.free-electrons.com/source/drivers/scsi/scsi_lib.c?v=3.13#L1520

Error :
--------
Bad value of the RIP register into bio_endio()
Is the value of the pointer bio->bi_end_io incorrect at line 1720 ? You will find the values of the registers with the screen shot.

** Summary changed:

- Kernel panic while cpying files through USB HHD
+ Kernel panic while copying files through USB HHD

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https://bugs.launchpad.net/bugs/1404407

Title:
  Kernel panic while copying files through USB HHD

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I have a new MSI CX61 2PC 2198XFR that I installed today with Ubuntu
  14.04 LTS that works fine with my old computer.

  Some info for the new one :
  Linux JPD-CX61-2PC 3.13.0-43-generic #72-Ubuntu SMP Mon Dec 8 19:35:06 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  When I plugged an external USB HDD or when I make a huge copy from one
  USB HDD to the internal SSD, I issued a kernel panic with a
  probability of 33%. Four kernel panics in less than an hour.

  Except that (!), the computer is working perfectly. So I think the
  issue is linked to the USB 3.0 transfer.

  Thank you for your help.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-43-generic 3.13.0-43.72
  ProcVersionSignature: Ubuntu 3.13.0-43.72-generic 3.13.11.11
  Uname: Linux 3.13.0-43-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jpd        3073 F.... pulseaudio
   /dev/snd/controlC1:  jpd        3073 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Dec 20 00:01:28 2014
  HibernationDevice: RESUME=UUID=d546a8f2-c074-4f4a-bae2-e2119ab9d8e7
  InstallationDate: Installed on 2014-12-19 (0 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Micro-Star International Co., Ltd. CX61 2PC
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-43-generic root=UUID=bf5d2969-4391-4c6a-826b-a536aaf46fb0 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-43-generic N/A
   linux-backports-modules-3.13.0-43-generic  N/A
   linux-firmware                             1.127.10
  SourcePackage: linux
  StagingDrivers: zram
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/26/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: E16GDIMS.60P
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: MS-16GD
  dmi.board.vendor: Micro-Star International Co., Ltd.
  dmi.board.version: REV:1.0
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: CX61 2PC
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE16GDIMS.60P:bd08/26/2014:svnMicro-StarInternationalCo.,Ltd.:pnCX612PC:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-16GD:rvrREV1.0:cvnCX612PC:ct10:cvrN/A:
  dmi.product.name: CX61 2PC
  dmi.product.version: REV:1.0
  dmi.sys.vendor: Micro-Star International Co., Ltd.

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