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[matteodefelice <matteo.defelice@xxxxxxxxx>]

Unfortunately I can't try a new kernel on my machine, anyway I tried to
replicate the same problem using malloc + memset. I know it's trivial
but in this way I can avoid using complex softwares like R or MATLAB.
Given the 'top' stops refreshing once my RAM is full I cannot see if the
system uses swap space correctly.

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https://bugs.launchpad.net/bugs/1223296

Title:
  System freezes when RAM is 100% used

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  As in Bug #1162073, when my memory usage arrives at 100% (e.g. using
  MATLAB or R and allocating a large array) the system starts to freeze
  and I need to kill the program by terminal (usually loggin in from
  another computer). I have 12 Gb of RAM.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-30-generic 3.8.0-30.44
  ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu8.4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  matteo     3153 F.... pulseaudio
   /dev/snd/controlC0:  matteo     3153 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Tue Sep 10 13:20:20 2013
  HibernationDevice: RESUME=UUID=18c94b06-56ba-4d27-876e-2ac6eff3b9ed
  MachineType: Dell Inc. Precision WorkStation T3500
  MarkForUpload: True
  ProcFB:
   
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=384a0a8d-fc24-453d-9c40-c0ec21d1b727 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-30-generic N/A
   linux-backports-modules-3.8.0-30-generic  N/A
   linux-firmware                            1.106
  RfKill:
   
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-07-29 (42 days ago)
  dmi.bios.date: 04/20/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 09KPNV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A01
  dmi.chassis.type: 7
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA11:bd04/20/2011:svnDellInc.:pnPrecisionWorkStationT3500:pvr:rvnDellInc.:rn09KPNV:rvrA01:cvnDellInc.:ct7:cvr:
  dmi.product.name: Precision WorkStation T3500
  dmi.sys.vendor: Dell Inc.

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