Public bug reported:
On my computer, everytime I suspend and resume, a process appears called
kworker and takes around 95% CPU until next reboot. Contrary to what
I've seen around, the lid doesn't have to be closed and it doesn't
affect the next suspending.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-14-generic 3.11.0-14.21
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: pablo 1565 F.... pulseaudio
Date: Wed Nov 27 22:26:17 2013
InstallationDate: Installed on 2013-11-22 (5 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Semp Toshiba Informatica Ltda STI UB 1401
MarkForUpload: True
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic
root=UUID=3e3b8395-cedc-465a-938b-6ca56aba7539 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-14-generic N/A
linux-backports-modules-3.11.0-14-generic N/A
linux-firmware 1.116
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/29/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.5
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: STI UB 1401
dmi.board.vendor: Semp Toshiba Informatica Ltda
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 9
dmi.chassis.vendor: Semp Toshiba Informatica Ltda
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd05/29/2012:svnSempToshibaInformaticaLtda:pnSTIUB1401:pvrRev.10/00:rvnSempToshibaInformaticaLtda:rnSTIUB1401:rvrTobefilledbyO.E.M.:cvnSempToshibaInformaticaLtda:ct9:cvrToBeFilledByO.E.M.:
dmi.product.name: STI UB 1401
dmi.product.version: Rev. 10/00
dmi.sys.vendor: Semp Toshiba Informatica Ltda
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug package-from-proposed saucy
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https://bugs.launchpad.net/bugs/1255777
Title:
kworker process takes up ~95% of one CPU after suspending and resuming
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