After I upgrade my laptop from Ubuntu 11.04 to 11.10, it became extremely slow. With physical memory of 1GB, it starting swapping when free - buffers/cached > 400MB, which i thanked is to blame. It means when I launch a web browser and an e-mail client, it starts swapping. After several hours' running, the data swapped out will reach 300MB+ and meanwhile free - buffers/cached is only 400MB. When I was using Ubuntu 11.04 before, swapping would never start unless free - buffers/cached > 800MB. Now I can only disable swapping to make my system usable, but the temporary solution will make my system unstable.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-12-generic 3.0.0-12.20
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: bill 1604 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf4500000 irq 45'
Mixer name : 'Conexant CX20549 (Venice)'
Components : 'HDA:14f15045,17aa3c2e,00100100'
Controls : 17
Simple ctrls : 9
Date: Thu Nov 3 13:32:52 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: LENOVO 1680014
ProcEnviron:
LANGUAGE=zh_CN:zh
PATH=(custom, no user)
LANG=zh_CN.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-12-generic root=UUID=50da0a45-7277-4992-bd2b-212fc4d16250 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.0.0-12-generic N/A
linux-backports-modules-3.0.0-12-generic N/A
linux-firmware 1.60
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes
SourcePackage: linux
UpgradeStatus: Upgraded to oneiric on 2011-10-13 (20 days ago)
dmi.bios.date: 08/15/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: IAET18WW (1.12 )
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvrIAET18WW(1.12):bd08/15/2007:svnLENOVO:pn1680014:pvrXRN220:rvnLENOVO:rnINVALID:rvrNotApplicable:cvnLENOVO:ct10:cvrN/A:
dmi.product.name: 1680014
dmi.product.version: XR N220
dmi.sys.vendor: LENOVO
Bill Lee, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://
If it remains an issue, could you please run the following command in the development release from a Terminal (Applications-
apport-collect -p linux <replace-
Also, could you please test the latest upstream kernel available following https:/
kernel-
kernel-
where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-
This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-
If the mainline kernel does not fix this bug, please add the following tags:
kernel-
kernel-
As well, please remove the tag:
needs-upstream-
Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.