kswapd0 high CPU usage and lagging system
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Medium
|
Unassigned |
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:/
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-
ProcVersionSign
Uname: Linux 3.8.0-22-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
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_
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
0 inteldrmfb
1 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
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.
dmi.board.name: K50IJ
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: K50IJ
dmi.product.
dmi.sys.vendor: ASUSTeK Computer Inc.
tags: | added: bios-outdated-207 needs-upstream-testing regression-potential |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
tags: |
added: kernel-fixed-upstream-v3.10-rc3 removed: needs-upstream-testing |
tags: | added: needs-reverse-bisect |
description: | updated |
This change was made by a bot.