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Message #14406
[Bug 1185172] Re: kswapd0 high CPU usage and lagging system
[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/1185172
Title:
kswapd0 high CPU usage and lagging system
Status in “linux” package in Ubuntu:
Expired
Bug description:
Hi,
when the RAM is about to be full the kswapd0 process starts using very much CPU like 80-100%, and the system is unusable because of a severe lagging. What is interestin is that thunderbird seems to trigger this (e.g. when i shut down thunderbird everything comes ot normal, so let me know if you need to know the size of my thunderbird databases) more info on this comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/721896/comments/39
When this is happening, the free -m outout looks liek this:
total used free shared buffers cached
Mem: 3920 3822 97 0 0 344
-/+ buffers/cache: 3477 442
Swap: 0 0 0
WORKAROUND: Enabling 1Gb swap seems to solve this issue.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-22-generic 3.8.0-22.33
ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11
Uname: Linux 3.8.0-22-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: nick 2166 F.... pulseaudio
Date: Wed May 29 00:08:11 2013
InstallationDate: Installed on 2012-06-22 (340 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
MachineType: ASUSTeK Computer Inc. K50IJ
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
0 inteldrmfb
1 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-22-generic root=UUID=10fbfaa4-4532-4680-ab0f-13cf0cf1e40f ro loop.max_part=16 quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-22-generic N/A
linux-backports-modules-3.8.0-22-generic N/A
linux-firmware 1.106
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to raring on 2013-03-24 (65 days ago)
dmi.bios.date: 05/08/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 207
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: K50IJ
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr207:bd05/08/2009:svnASUSTeKComputerInc.:pnK50IJ:pvr1.0:rvnASUSTeKComputerInc.:rnK50IJ:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: K50IJ
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
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