Kernel_task used up all cpu% when charging

Start you own thread to discuss your problem. If you expect to get any help, include details from either EtreCheck or Activity Monitor.

I am also having the problem with a slow mac after installing ML. I do not know too much of the mac system but i have found the following afte runing EtreCheck, can anyone tell me what this means and how to fix it.

Problem System Launch Agents:

[failed] com.apple.afpstat.plist

[failed] com.apple.mrt.uiagent.plist

I had the same problem since two days and it would also stop Finder from responding.

In your log I saw that you also have an iSCSI initiatior installed... that was the only change I did recently.

When looking into it, I saw that the iSCSI disk was still showing on the desktop, but unavailable (and with spinning wheel) and in the iSCSI settings, it said "disconnected" but also wouldn't let me reconnect as it seemed to be in some undetermined state....

I detached the iSCSI disk and for now this fixed it.

Some problem here;

Hardware Information:

MacBook Pro - model: MacBookPro8,3

1 2.2 GHz Intel Core i7 CPU: 4 cores

8 GB RAM

Video Information:

Intel HD Graphics 3000 - VRAM: 512 MB

AMD Radeon HD 6750M - VRAM: 1024 MB

Startup Items:

ChmodBPF - Path: /Library/StartupItems/ChmodBPF

comapcpcpestart - Path: /Library/StartupItems/comapcpcpestart

System Software:

OS X 10.8.3 (12D78) - Uptime: 0 days 10:26

Disk Information:

Hitachi HTS725050A9A362 disk0 : (500.11 GB)

disk0s1 (disk0s1) <not mounted>: 209.7 MB

Macintosh HD (disk0s2) /: 499.25 GB (26.53 GB free)

Recovery HD (disk0s3) <not mounted>: 650 MB

MATSHITADVD-R UJ-8A8

USB Information:

Apple Inc. FaceTime HD Camera (Built-in)

Microsoft Xbox NUI Camera

Microsoft Xbox NUI Audio

Microsoft Xbox NUI Motor

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Inc. BRCM2070 Hub

Apple Inc. Bluetooth USB Host Controller

Novation DMS Ltd Launchpad

ALLEN&HEATH LTD. XONE:K2

M-Audio Axiom 25

Akai Akai APC40

Apple Computer, Inc. IR Receiver

FireWire Information:

0x1F2 Vendor 0x1F2 Device 0x100800 400mbit - 400mbit max

Kernel Extensions:

com.avatron.AVExVideo Version: 1.7

com.fsb.kext.logKext Version: 2.3

com.avatron.AVExFramebuffer Version: 1.7

com.paceap.kext.pacesupport.snowleopard Version: 5.9

com.vmware.kext.vmci Version: 90.4.18

com.vmware.kext.vsockets Version: 90.4.23

com.vmware.kext.vmnet Version: 0104.03.86

com.vmware.kext.vmx86 Version: 0104.03.86

com.vmware.kext.vmioplug.10.1.24 Version: 10.1.24

Problem System Launch Daemons:

Problem System Launch Agents:

[failed] com.apple.mrt.uiagent.plist

Launch Daemons:

[loaded] com.github.GitHub.GHInstallCLI.plist

[loaded] com.google.keystone.daemon.plist

[loaded] com.insynchq.insync.daemon.plist

[loaded] com.microsoft.office.licensing.helper.plist

[loaded] com.nullvision.noatime.plist

[loaded] com.prosofteng.DriveGenius.locum.plist

[loaded] com.soma-zone.LaunchControl.Helper.plist

[loaded] com.synium.cleanappdaemon.plist

[failed] logKext.plist

[loaded] net.sourceforge.MonolingualHelper.plist

[loaded] org.macosforge.xquartz.privileged_startx.plist

[loaded] PACESupport.plist

Launch Agents:

[loaded] com.google.keystone.agent.plist

[loaded] com.motu.MOTULauncher.plist

[loaded] org.gpgtools.Libmacgpg.xpc.plist

[not loaded] org.littleshoot.littleshoot.plist

[loaded] org.macosforge.xquartz.startx.plist

User Launch Agents:

[loaded] com.codingcurious.AutomaticHelper.plist

[loaded] com.facebook.videochat.grebois.plist

[failed] ws.agile.1PasswordAgent.plist

User Login Items:

Insync

Adium

Mail

smcFanControl

Calendar

Telephone

SMARTReporter

Dropbox

Transmission

3rd Party Preference Panes:

Air Display Preferences

APC PowerChute Personal Edition

Automatic

Flash Player

Flip4Mac WMV

FUSE for OS X (OSXFUSE)

GeekTool

GPGTools

Java

MacFUSE

Native Instruments USB Audio

NTFS-3G

Perian

Secrets

Internet Plug-ins:

Flash Player.plugin

FlashPlayer-10.6.plugin

Flip4Mac WMV Plugin.plugin

googletalkbrowserplugin.plugin

iPhotoPhotocast.plugin

JavaAppletPlugin.plugin

LittleShootPlugIn.plugin

npgtpo3dautoplugin.plugin

o1dbrowserplugin.plugin

QuickTime Plugin.plugin

SharePointBrowserPlugin.plugin

Silverlight.plugin

SpeedDownload Browser Plugin.plugin

User Internet Plug-ins:

CitrixOnlineWebDeploymentPlugin.plugin

Google Earth Web Plug-in.plugin

Picasa.plugin

WebEx64.plugin

Bad Fonts:

None

Top Processes by CPU:

152% Live

47% CalendarAgent

32% activitymonitord

9% Ableton

9% WindowServer

5% EtreCheck

3% hidd

3% Transmission

3% Insync

3% coreaudiod

Top Processes by Memory:

1016 MB Live

336 MB CalendarAgent

221 MB Mail

213 MB Contacts

147 MB WindowServer

139 MB Skype

98 MB Ableton

82 MB Finder

66 MB Calendar

66 MB Dock

Hi,

I am in kind of the same situation and it is driving me crazy! Lately, the kernel task of my MB pro early 2011 goes over 300% and so it gets almost useless as it runs extremely slow. I took it several times to Madrid apple store,and hardware tests, again more hardaware test, format,cleaning its inside, and total reinstallation of the OSX were performed several times without success: they find nothing wrong but later at home it happens again and again. No more apps installed, new OSX... it can only be hardware, right?

It led to awkward questions and situations as it didnt ever happen when in the apple store, but only at home. Anyway, genius bar people incredibly nice.

I kept insisting, going back and finnally after reading these conversations here and explaining about it at the genius bar, they accepted to change the logic board for me. But sadly, it is happening again, and now i just dont know what else to do. If i take it back to the apple store, i dont know what else to say or explain, so far no problem has been found but it keeps happening. It is so frustrating!!! It is such a shame to have to stop using my Mac normally it is all more than perfect, but once the fan starts sounding loud, i know its back and no more use for a while.

Can anyone help me or give me any advice?? I would really really appreciate it.

Thanks in advance (and sorry for my english) 😉

My solution was to do with iSkysoft iTube studio.

The problem was a process called ADManager runinng at high CPU. Doing a bit of digging revealed it to be connected with the itube studio app. Simply quitting the process brought kernel_task down to 2% in about 3 seconds and the fans down to normal in 4...

Worth having a look in console.app and activity monitor to see if applications are stuck unable to do something they are supposed to...

If you can reproduce the problem at will, I'd be inclined to take the mac and the power adapter to an Apple store and have a hardware check done. That doesn't sound like a software fault to me.

Same here. Macbook Air late 2010. Since I installed Mountain Lion, Randomly Kernel_task ***** 100% both cores.

I didn´t test unplugg power cord yet

If the kernel task is taking all your CPU, the first place to look is kernel extensions. Remove any 3rd party extensions.

nevermind

this workds 100% for me. thanks very much

I had a similar problem with my MacBookPro with kernel_task with 700% of CPU.

There was a battery default. I've changed the battery and was perfect.

Bye

Alex

Using EtreCheck and Activity Monitor I found out it was the Wacom Bamboo driver to cause my problems! Many Tnx!!!