kworker high cpu utilization

[Darla]

I upgraded to vivid 15.04 on my HP Sleekbook (AMD A10 CPU) and it runs very hot. Top shows kworker taking up 60-70% CPU immediately after rebooting and not launching any programs.

  top - 17:27:55 up 10 min, 3 users, load average: 2.93, 2.75, 1.51
Tasks: 205 total, 3 running, 202 sleeping, 0 stopped, 0 zombie
%Cpu(s): 22.8 us, 35.5 sy, 0.0 ni, 39.5 id, 0.2 wa, 0.0 hi, 1.9 si, 0.0 st
KiB Mem: 5233588 total, 4715036 used, 518552 free, 56484 buffers
KiB Swap: 5468156 total, 0 used, 5468156 free. 689644 cached Mem

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
   97 root 20 0 0 0 0 R 66.0 0.0 6:13.97 kworker/2:3
 3512 darla 20 0 1020444 320036 61580 S 45.8 6.1 2:02.92 chrome
   22 root 20 0 0 0 0 S 34.2 0.0 3:08.83 ksoftirqd/2
 3493 darla 20 0 2868728 1.492g 39876 S 30.5 29.9 2:04.76 chrome
 1033 root 20 0 351108 136976 90380 R 24.9 2.6 1:46.40 Xorg
 3311 darla 20 0 1085248 205976 90288 S 17.6 3.9 1:26.52 chrome
 2479 darla 9 -11 630432 10824 7760 S 6.3 0.2 0:13.21 pulseaudio
 3342 darla 20 0 1109672 332000 135212 S 5.6 6.3 0:29.85 chrome
 3467 darla 20 0 959564 184012 60188 S 3.0 3.5 0:21.64 chrome
   77 root 20 0 0 0 0 S 1.7 0.0 0:08.37 kworker/1:1
 2697 darla 20 0 388040 24652 18852 S 1.7 0.5 0:00.85 xfce4-term+
 3483 darla 20 0 1039356 209628 64692 S 1.7 4.0 0:23.44 chrome
 3561 darla 20 0 879172 146972 64124 S 1.0 2.8 0:07.04 chrome
   50 root 20 0 0 0 0 S 0.7 0.0 0:05.24 kworker/0:1
---
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC1D0p: darla 2479 F...m pulseaudio
 /dev/snd/controlC1: darla 2479 F.... pulseaudio
 /dev/snd/controlC0: darla 2479 F.... pulseaudio
CurrentDesktop: XFCE
DistroRelease: Ubuntu 15.04
HibernationDevice: RESUME=UUID=ac85efbe-0ab6-41b5-9397-9eaebaf2f6f8
InstallationDate: Installed on 2015-01-25 (130 days ago)
InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: Hewlett-Packard HP ENVY m6 Sleekbook
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-18-generic.efi.signed root=/dev/mapper/xubuntu--vg-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.19.0-18.18-generic 3.19.6
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-18-generic N/A
 linux-backports-modules-3.19.0-18-generic N/A
 linux-firmware 1.143.1
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: vivid
Uname: Linux 3.19.0-18-generic x86_64
UpgradeStatus: Upgraded to vivid on 2015-05-03 (32 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 05/15/2013
dmi.bios.vendor: Insyde
dmi.bios.version: F.02
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 1995
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 04.20
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsyde:bvrF.02:bd05/15/2013:svnHewlett-Packard:pnHPENVYm6Sleekbook:pvr0883100022305B00000320100:rvnHewlett-Packard:rn1995:rvr04.20:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: HP ENVY m6 Sleekbook
dmi.product.version: 0883100022305B00000320100
dmi.sys.vendor: Hewlett-Packard

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1462108

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Darla (untrammeled)]

Let me know what other information to post.

[Darla (untrammeled)]

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[Darla (untrammeled)]

Model: HP ENVY m6 Sleekbook

Processor: AMD A10-5745M APU with Radeon (™) HD Graphics 2.10 GHz

Memory: 6.00 GB

Product #: E0L01UA#ABA

[Darla (untrammeled)]

HP ENVY m6-k010dx Sleekbook

[penalvch (penalvch)]

Darla, as per http://support.hp.com/us-en/drivers/selfservice/HP-ENVY-m6-k000-Sleekbook/5375388/model/5390695 an update to your computer's buggy and outdated BIOS is available (F.16). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report.

Once the BIOS is updated, and the information above is provided, then please mark this report Status Confirmed.

Thank you for your understanding.

[Darla (untrammeled)]

I wanted to thank you all for all of your help so far; it has really warmed my heart. I will work on the BIOS update thing sometime during the next couple days. I will then post comments regarding that endeavor. I hope everyone is having a lovely weekend.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]