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[Launchpad Bug Tracker <1540013@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

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

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https://bugs.launchpad.net/bugs/1540013

Title:
  Ubuntu gets slow and freezes, because 'invisible' processes use all
  memory

Status in linux package in Ubuntu:
  Expired

Bug description:
  I usually suspend my computer (HP EliteBook 8560w) to RAM if I
  tranport it or I don't need it and I restart it only once a month or
  so. However, since a few weeks, my computer gets slow, sluggish, and
  ultimately freezes after using it for some hours, because some
  'invisible' processes use all the RAM (8 GB). When I notice in time
  that there is no or little memory left in RAM so that the computer
  starts to use swap memory and I immediately close all programs, I can
  restart the computer before it gets unresponsive. I have to restart my
  computer at least once per day (often by pressing the on/off button
  for a long time, when I did not manage to restart the computer before
  it became unresponsive). Although a lot of memory is used, the
  processes that use most of the memory are not listed by "System
  Activity" or "top" (I will attached a screen shot and a text file that
  illustrate this). Hence, it seems that some 'invisible' processes use
  nearly all of the memory.

  I ran MemTest86 (from the boot menu) but it did not find any errors.

  I did not use 'apport' to report this bug, because it does not really
  work:

  https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1539263

  but I managed to save the information collected by apport, which I
  will attach.

  Which further information do you need?
  --- 
  ApportVersion: 2.19.4-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  ubuntu     1679 F.... pulseaudio
   /dev/snd/controlC0:  ubuntu     1679 F.... pulseaudio
  CasperVersion: 1.366
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 16.04
  LiveMediaBuild: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160131)
  MachineType: Hewlett-Packard HP EliteBook 8560w
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: file=/cdrom/preseed/username.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
  ProcVersionSignature: Ubuntu 4.3.0-7.18-generic 4.3.3
  RelatedPackageVersions:
   linux-restricted-modules-4.3.0-7-generic N/A
   linux-backports-modules-4.3.0-7-generic  N/A
   linux-firmware                           1.155
  Tags:  xenial
  Uname: Linux 4.3.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 07/15/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68SVD Ver. F.42
  dmi.board.name: 1631
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 01.3D
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68SVDVer.F.42:bd07/15/2013:svnHewlett-Packard:pnHPEliteBook8560w:pvrA0001D02:rvnHewlett-Packard:rn1631:rvrKBCVersion01.3D:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP EliteBook 8560w
  dmi.product.version: A0001D02
  dmi.sys.vendor: Hewlett-Packard

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