kernel-packages team mailing list archive

[Dave Chiluk <1338706@xxxxxxxxxxxxxxxxxx>]

So after some additional testing it looks like NCQ Trim on the Samsung
8**  drives still has "issues".

It looks like it mostly works, but once the drive gets saturated with a
large trim *(i.e. deleting 5 kernel trees, and then fstrimming), the
kernel starts to hit timeouts.  Increasing the timeouts to 200 seconds
or more appears to alleviate these errors, but upstream has already
blacklisted the drive altogether for NCQ trim.

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a9324d396967

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https://bugs.launchpad.net/bugs/1338706

Title:
  Samsung SSD 840 failed to get NCQ Send/Recv Log Emask 0x1 failed to
  set xfermode (err_mask=0x40) on upstream kernels >= 3.12

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Samsung SSD 840 Series failed to get NCQ Send/Recv Log Emask 0x1.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-30-generic 3.13.0-30.55
  ProcVersionSignature: Ubuntu 3.13.0-30.55-generic 3.13.11.2
  Uname: Linux 3.13.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  user       2131 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Mon Jul  7 20:01:28 2014
  HibernationDevice: RESUME=UUID=685afcb7-7aa6-4048-af15-091d3bcd3b35
  InstallationDate: Installed on 2014-06-22 (14 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  IwConfig:
   eth0      no wireless extensions.

   lo        no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-30-generic root=UUID=d7c2e1cb-d046-460c-83b8-0cfbb330d095 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-30-generic N/A
   linux-backports-modules-3.13.0-30-generic  N/A
   linux-firmware                             1.127.4
  RfKill:

  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/10/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0901
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: M3N78-EM
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0901:bd09/10/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM3N78-EM:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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