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[Bug 1497383] Re: While copying from hdd to hdd or hdd to usb ubuntu freezes


Abdul Rehman, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command only once, as it will automatically gather debugging information, in a terminal:
apport-collect 1497383

** Package changed: linux-lts-utopic (Ubuntu) => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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

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  While copying from hdd to hdd or hdd to usb ubuntu freezes

Status in linux package in Ubuntu:

Bug description:
  WDC WD7500BPVT 750GB Advanced format HDD
  changing dirty_ratio or dirty_background_ratio prevents freezes but it slows down HDD R/W operations
  deadline scheduler is selected
  parted informs that partitions are aligned
  logical sectors are 512B while physical sectors are 4096 bytes
  hdparm informs speed 96MB/s
  Programs startup is slow.
  S.M.A.R.T assessment is OK.

  HDD operations make system unusable.

  Hardware Specification
  Intel Core-i7 3612qm
  intel HD 4000m

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.16.0-49-generic 3.16.0-49.65~14.04.1
  ProcVersionSignature: Ubuntu 3.16.0-49.65~14.04.1-generic 3.16.7-ckt15
  Uname: Linux 3.16.0-49-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Sep 18 22:08:23 2015
  InstallationDate: Installed on 2015-09-13 (5 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  SourcePackage: linux-lts-utopic
  UpgradeStatus: No upgrade log present (probably fresh install)

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