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[Bug 1271430] Re: dm-0: WRITE SAME failed. Manually zeroing.

 

This isn't an error only an informational message:
http://unix.stackexchange.com/a/244150/134856 .

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https://bugs.launchpad.net/bugs/1271430

Title:
  dm-0: WRITE SAME failed. Manually zeroing.

Status in linux-lts-raring package in Ubuntu:
  Confirmed

Bug description:
  The error message appears on console

  # lsb_release -rd
  Description:    Ubuntu 12.04.1 LTS
  Release:        12.04

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.8.0-31-generic 3.8.0-31.46~precise1
  ProcVersionSignature: Ubuntu 3.8.0-31.46~precise1-generic 3.8.13.8
  Uname: Linux 3.8.0-31-generic x86_64
  AlsaDevices:
   total 0
   crw-rw---T 1 root audio 116,  1 sty 22  2014 seq
   crw-rw---T 1 root audio 116, 33 sty 22  2014 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  CurrentDmesg:
   [   39.241605] type=1702 audit(1390372703.731:17): op=linkat action=denied pid=1874 comm="named" path="/var/lib/bind/eduquesty.pl.hosts" dev="dm-0" ino=322249
   [   94.609161] pcnet32: pcnet32.c:v1.35 21.Apr.2008 tsbogend@xxxxxxxxxxxxxxxx
   [   97.241496] ip_tables: (C) 2000-2006 Netfilter Core Team
   [  477.172931] dm-0: WRITE SAME failed. Manually zeroing.
  Date: Wed Jan 22 08:07:24 2014
  InstallationMedia: Ubuntu-Server 10.04.4 LTS "Lucid Lynx" - Release amd64 (20120214.2)
  IwConfig:
   eth0      no wireless extensions.
   
   lo        no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: VMware, Inc. VMware Virtual Platform
  MarkForUpload: True
  PciMultimedia:
   
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   LANG=pl_PL.UTF-8
   SHELL=/bin/bash
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-31-generic root=/dev/mapper/hostname-system ro quiet
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-31-generic N/A
   linux-backports-modules-3.8.0-31-generic  N/A
   linux-firmware                            1.79.7
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux-lts-raring
  UpgradeStatus: Upgraded to precise on 2012-12-02 (415 days ago)
  dmi.bios.date: 07/30/2013
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: 440BX Desktop Reference Platform
  dmi.board.vendor: Intel Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd07/30/2013:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.

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