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[Axel Pospischil <apos@xxxxxx>]

*** This bug is a duplicate of bug 1266305 ***
    https://bugs.launchpad.net/bugs/1266305

** Summary changed:

- [ Ubuntu 14.04 - Lenovo W510 - SSD Samsung 840 EVO PRO] Sudden Read-Only Filesystems
+ [ Ubuntu 14.04 - Lenovo W510 - SSD Samsung 840 EVO PRO] Sudden Read-Only Filesystem

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https://bugs.launchpad.net/bugs/1269777

Title:
  [ Ubuntu 14.04 - Lenovo W510 - SSD Samsung 840 EVO PRO] Sudden Read-
  Only Filesystem

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Like mentioned in bug #1266305 (and before in bug #1265309) the
  following problem occured:

  1. System
  --------------------------

  - Ubuntu 14 04 LTS (acutal development branch)
  - linux-image-generic v. 3.13.x,  mainline kernel 3.13.x (first testing the standard kernel), last 3.12 mainline kernel
  - lvm with trim support (batched discard)
  - tlp (currently disabled for testing purpose)

  
  2. Hardware:
  ---------------------------
  - Lenovo W510 i7 quad core
  - SSD Samsung 840 EVO Pro (was changed, former Samsung 840 EVO)
  - nvidia graphics

  BIOS (defaults F9) and:

  - BIOS Mode Standard 1: SATA: AHCI, POWER: pci and pcie power management AUTOMATIC
  - BIOS Mode Standard 2: SATA: AHCI, POWER: pci and pcie power management OFF

  - BIOS Mode Compat 1: SATA: Compatability Mode, POWER: pci and pcie power management AUTOMATIC
  - BIOS Mode Compat 2: SATA: Compatability Mode, POWER: pci and pcie power management OFF

  
  3. Problem descripton
  -----------------------------------------------

  The SSD randomly freezes with the following errors:
  ata1: EH complete
  ata1: limiting SATA link speed to 1.5 Gbps
  ata1.00: exception Emask 0x52 SAct 0x1 SErr 0x1a80d00 action 0x6 frozen
  ata1.00: irq_stat 0x08000000, interface fatal error
  ata1: SError: { UnrecovData Proto HostInt 10B8B BadCRC LinkSeq TrStaTrns }
  ata1.00: failed command: READ FPDMA QUEUED
  ata1.00: cmd 60/08:00:d8:b9:27/00:00:05:00:00/40 tag 0 ncq 4096 in
  ata1.00: status: { DRDY }
  ata1: hard resetting link
  ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)

  4. Troubleshooting so far
  ------------------------------------------------
  4.1. Kernel boot parameters:

  libata.force=1:3.0G,2:1,5G libata.force=noncq

  -> not working. DRDY, hard restting link.

  4.2. BIOS Mode Compat 2 (Compat, PCI powermangement OFF), no
  additional kernel boot parameters.

  System ran with standard generic kernel 3.13.x for over 12 hours usage without any problems.
  I did some suspend/ resume cycles: no problems.

  
  5. Further testing:
  --------------------------------------------------------
  Testing scenarios will be applied in the follwowing structure (if necessary)

  5.1 Testing the standard trusty kernel (linux-image-generic) 
  5.1.1.  with all BIOS modes.
  5.1.2.  eventually kernel boot parameters

  5.2. Testing the latest mainline kernel  with all BIOS modes.
  5.2.1.  with all BIOS modes.
  5.2.2.  eventually kernel boot parameters

  This could take a few days, so be patient.

  Keeping fingers crossed ;-)

  P.S-.: Thanks a lot for Christopher M. Penalver for his excellent
  assistance so far!

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-generic 3.13.0.3.6
  ProcVersionSignature: Ubuntu 3.13.0-3.18-generic 3.13.0-rc8
  Uname: Linux 3.13.0-3-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.1-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  apos       3069 F.... pulseaudio
   /dev/snd/controlC0:  apos       3069 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Thu Jan 16 12:35:13 2014
  HibernationDevice: RESUME=UUID=7290992b-11df-4d5c-a9bc-579dafe5eb61
  InstallationDate: Installed on 2014-01-08 (7 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140105)
  MachineType: LENOVO 4391E46
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-3-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-3-generic N/A
   linux-backports-modules-3.13.0-3-generic  N/A
   linux-firmware                            1.121
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/03/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6NET84WW (1.45 )
  dmi.board.name: 4391E46
  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:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn4391E46:pvrThinkPadW510:rvnLENOVO:rn4391E46:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 4391E46
  dmi.product.version: ThinkPad W510
  dmi.sys.vendor: LENOVO

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