Public bug reported: There exists a quite common scenerio especially on low end machines wherein kswapd can take up 100% CPU and stall the machine for a considerable amount of time. Luckily a well tested fix for this problem has just been merged into the kernel tree and I believe the fix has been queued for -stable review as well.
Please consider applying this to the kernel in -proposed. http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=afc7e326a3f5bafc41324d7926c324414e343ee5 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f06590bd718ed950c98828e30ef93204028f3210 ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: linux-image-2.6.39-3-generic 2.6.39-3.10 ProcVersionSignature: Ubuntu 2.6.39-3.10-generic 2.6.39 Uname: Linux 2.6.39-3-generic i686 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 Architecture: i386 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: david 1631 F.... pulseaudio CRDA: Error: [Errno 2] Ingen sådan fil eller filkatalog Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfbcb8000 irq 43' Mixer name : 'Realtek ALC269' Components : 'HDA:10ec0269,1043834a,00100004' Controls : 10 Simple ctrls : 6 Date: Sun May 29 22:19:15 2011 EcryptfsInUse: Yes InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) IwConfig: Error: [Errno 2] Ingen sådan fil eller filkatalog MachineType: ASUSTeK Computer INC. 1002HA ProcEnviron: LANGUAGE=da_DK:en PATH=(custom, no user) LANG=da_DK.utf8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-2.6.39-3-generic root=UUID=1a0d46e2-589f-4bd2-90ab-7977a2fa4e26 ro rootflags=subvol=@ quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-2.6.39-3-generic N/A linux-backports-modules-2.6.39-3-generic N/A linux-firmware 1.53 RfKill: Error: [Errno 2] Ingen sådan fil eller filkatalog SourcePackage: linux UdevDb: Error: [Errno 2] Ingen sådan fil eller filkatalog UpgradeStatus: Upgraded to oneiric on 2011-05-29 (0 days ago) dmi.bios.date: 03/02/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0701 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: 1002HA dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: x.xx dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTek Computer INC. dmi.chassis.version: x.x dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0701:bd03/02/2009:svnASUSTeKComputerINC.:pn1002HA:pvrx.x:rvnASUSTeKComputerINC.:rn1002HA:rvrx.xx:cvnASUSTekComputerINC.:ct10:cvrx.x: dmi.product.name: 1002HA dmi.product.version: x.x dmi.sys.vendor: ASUSTeK Computer INC. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 oneiric unity-2d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/789982 Title: SRU: Fix kswapd 100% cpu usage in common scenerios -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
