Comment 0 for bug 1331186

As soon as I start Ubuntu 12.04.4 LTS with i386 PAE kernel, 8GB memory, GNU/Linux 3.2.0-64-generic-pae i686,
cache memory area increases a little by a littel, and It consume 5GB memory. User memory left will become 200MB.

I release cache memory by issuing a shell script, cache_release.sh. It is like that :

#!/bin/bash

/bin/sync
/bin/sync
/bin/sync
/bin/sync
/bin/sync

/sbin/sysctl -w vm.drop_caches=1
/sbin/sysctl -w vm.drop_caches=2
/sbin/sysctl -w vm.drop_caches=3

Maybe kernel requires patches.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-64-generic-pae 3.2.0-64.97
ProcVersionSignature: Ubuntu 3.2.0-64.97-generic-pae 3.2.59
Uname: Linux 3.2.0-64-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC665 Analog [ALC665 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: hiroshi 4448 F.... pulseaudio
 /dev/snd/controlC0: hiroshi 4448 F.... pulseaudio
 /dev/snd/pcmC0D0p: hiroshi 4448 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0a00000 irq 57'
   Mixer name : 'Realtek ALC665'
   Components : 'HDA:10ec0665,1028046e,00100003'
   Controls : 26
   Simple ctrls : 13
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 24
   Simple ctrls : 4
Date: Wed Jun 18 05:27:20 2014
HibernationDevice: RESUME=UUID=02e8790f-b82d-416f-8a25-de64b1bac6e9
InstallationMedia: Ubuntu 12.04 "Precise" - Build i386 LIVE Binary 20120501-03:27
MachineType: Dell Inc. XPS L501X
MarkForUpload: True
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-64-generic-pae root=UUID=1dff47dd-b881-4de7-b290-b74b48753d63 ro quiet splash
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-64-generic-pae N/A
 linux-backports-modules-3.2.0-64-generic-pae N/A
 linux-firmware 1.79.15
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/26/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.vendor: Dell Inc.
dmi.board.version: A08
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A08
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd07/26/2011:svnDellInc.:pnXPSL501X:pvrA08:rvnDellInc.:rn:rvrA08:cvnDellInc.:ct8:cvrA08:
dmi.product.name: XPS L501X
dmi.product.version: A08
dmi.sys.vendor: Dell Inc.