← Back to team overview

kernel-packages team mailing list archive

[Bug 1568592] Re: bug of "memory.kmem.limit_in_bytes" and "memory.kmem.usage_in_bytes"


The behavior seems odd on the face of it, but I'm not an expert on the
memory controller cgroup implementation. Our implementation is the same
as in upstream Linux, so if you feel there are problems then it's
probably best to raise these with the upstream developers directly. If
they make changes then we would consider porting these changes back to

For now I'm going to close this bug as invalid. If there are upstream
changes in the future that you'd like to see backported to xenial,
please open a new bug and assign it to me. Thanks!

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

You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.

  bug of "memory.kmem.limit_in_bytes" and "memory.kmem.usage_in_bytes"

Status in linux package in Ubuntu:

Bug description:
  In ubuntuxenial with linux kernel 4.4,

  "memory.kmem.limit_in_bytes" cannot be written,

  and the value of "memory.kmem.usage_in_bytes" is always 0.

  This issue doesn't happen in ubuntu wily (kernel = 4.2)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic
  ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
  Uname: Linux 4.4.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.4.0-18-generic.
  ApportVersion: 2.20.1-0ubuntu1
  Architecture: amd64
   /dev/snd/controlC0:  ghostplant   2724 F.... pulseaudio
   /dev/snd/controlC1:  ghostplant   2724 F.... pulseaudio
  CurrentDesktop: GNOME-Flashback:Unity
  Date: Mon Apr 11 03:24:49 2016
   Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system.
         Users in the 'systemd-journal' group can see all messages. Pass -q to
         turn off this notice.
   No journal files were opened due to insufficient permissions.
  MachineType: Micro-Star International Co., Ltd. GE60 2PG

  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-18-generic root=UUID=9b9acac2-b16b-4328-abc9-407fe4ce4e4d ro quiet swapaccount=1
   linux-restricted-modules-4.4.0-18-generic N/A
   linux-backports-modules-4.4.0-18-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)

  dmi.bios.date: 12/01/2014
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: E16GFIMS.626
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: MS-16GF
  dmi.board.vendor: Micro-Star International Co., Ltd.
  dmi.board.version: REV:0.B
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrE16GFIMS.626:bd12/01/2014:svnMicro-StarInternationalCo.,Ltd.:pnGE602PG:pvrREV1.0:rvnMicro-StarInternationalCo.,Ltd.:rnMS-16GF:rvrREV0.B:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: GE60 2PG
  dmi.product.version: REV:1.0
  dmi.sys.vendor: Micro-Star International Co., Ltd.

To manage notifications about this bug go to: