group.of.nepali.translators team mailing list archive

[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

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

** Changed in: linux (Ubuntu)
       Status: Confirmed => Triaged

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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

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

** Also affects: linux-lts-xenial (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: linux-lts-xenial (Ubuntu)
       Status: New => Triaged

** No longer affects: linux-lts-xenial (Ubuntu Xenial)

** Changed in: linux-lts-xenial (Ubuntu)
   Importance: Undecided => Medium

** Tags added: kernel-da-key

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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1622291

Title:
  Backport btrfs enospc rework (from kernel 4.8)

Status in linux package in Ubuntu:
  Triaged
Status in linux-lts-xenial package in Ubuntu:
  Triaged
Status in linux source package in Xenial:
  Triaged

Bug description:
  There are two btrfs related patches available for kernel 4.8 which
  improve latency and solve problems with low free disk space:

  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ba929b6646c5b87c7bb15cd8d3e51617725c983b

  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d58b0d980f0b1c27204da0e05537b606da45a07f

  Seen at (german source): http://www.heise.de/ct/artikel/Die-
  Neuerungen-von-Linux-4-8-3283402.html

  From my side, I encountered problems with full disks in btrfs multiple
  times. I reported some of them in the past.

  Plus do I have another system with 2x3TB of disk space (WD HDDs),
  while btrfs sits on top of a dm-raid and LUKS crypto. I experience
  very slow disk I/O on that system while disk usage gets fuller and
  fuller (combined with lots of subvolumes and layered devices, so that
  could be another reason).

  That said, I guess that, according to the article at heise and commit
  messages, the two patches have a tremendous impact on performance.
  Plus, should the patches fix some of the problems that happen together
  with full disks ("ENOSPC" issues).

  Now that the patches make it into the upstream kernel, I think that
  the developers have had some reason to do so. For the moment, I can't
  test if it actually improves something for me.

  Would still be great to have these patches backported to
  - ubuntu 16.04 Kernel 4.4
  - ubuntu 14.04 LTS Kernel 4.4

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-36-generic 4.4.0-36.55
  ProcVersionSignature: Ubuntu 4.4.0-36.55-generic 4.4.16
  Uname: Linux 4.4.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  thomas     4788 F.... pulseaudio
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Sun Sep 11 07:39:13 2016
  HibernationDevice: RESUME=UUID=28eded29-f9e6-44b5-9e54-c4dd60c8e3cd
  InstallationDate: Installed on 2014-11-29 (652 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  MachineType: Dell Inc. Latitude E5510
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.4.0-36-generic root=UUID=6408c2d9-1b60-43d7-9a7f-2dceeb40de28 ro rootflags=subvol=@ quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-36-generic N/A
   linux-backports-modules-4.4.0-36-generic  N/A
   linux-firmware                            1.157.3
  SourcePackage: linux
  UpgradeStatus: Upgraded to xenial on 2016-06-15 (87 days ago)
  dmi.bios.date: 12/06/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A16
  dmi.board.name: 023HKR
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA16:bd12/06/2013:svnDellInc.:pnLatitudeE5510:pvr0001:rvnDellInc.:rn023HKR:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5510
  dmi.product.version: 0001
  dmi.sys.vendor: Dell Inc.

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