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Nexus 4, KitKat 4.4.2: 100% CPU

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zamana
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Default Nexus 4, KitKat 4.4.2: 100% CPU

Hi!

Sometimes, out of nothing, my Nexus 4 heats and the 2nd core locks down at 100%. The temperatures raises to more than 34 (battery) and 48 (cpu) Celusius.

I tried to kill every application and service, one by one, but none of them changed anything. The only solution is reboot.

Anyone knows what's happening?

Thanks.
Regards.
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Ace42
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1.What are those app icons in the status bar?
2. Is this stock?
3. Did you try factory reset?

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zamana
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Quote:
Originally Posted by Ace42 View Post
What are those app icons in the status bar?

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Chess.com
AirDroid
AdWay.

AirDroid is not the culprit. It was started just to take the screenshot (my skills to press power and volume down buttons are compromised... )

Yes, I'm using stock KitKat 4.2.2.

The last reset was when I installed KitKat...
 
Ace42
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Originally Posted by zamana View Post
Chess.com
AirDroid
AdWay.

AirDroid is not the culprit. It was started just to take the screenshot (my skills to press power and volume down buttons are compromised... )

Yes, I'm using stock KitKat 4.2.2.

The last reset was when I installed KitKat...
Why don't you do volume+down for screenshot, android has it built in...And is your phone rooted? If it is can you try greenify then see if CPU usage drops?

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Main: LG G2 D-800 {Tmobile)
LG Opt G (e970)
Hybrid radios for E970
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Owned: G1(Backup)-> Mytouch3GS(Sold) -> SideKick4G(Traded) -> MyTouch4G(Sold) -> Sensation 4G(Sold) -> Galaxy Player 5"(Sold) ->Nexus 4(broken)->LG Opt G
 
Ace42
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And can you upload a picture of running services?


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Main: LG G2 D-800 {Tmobile)
LG Opt G (e970)
Hybrid radios for E970
Surface RT 32GB--Kindle Fire 1G_CM11--SGS Vibrant_CM11
Owned: G1(Backup)-> Mytouch3GS(Sold) -> SideKick4G(Traded) -> MyTouch4G(Sold) -> Sensation 4G(Sold) -> Galaxy Player 5"(Sold) ->Nexus 4(broken)->LG Opt G
 
zamana
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Why don't you do volume+down for screenshot, android has it built in...And is your phone rooted? If it is can you try greenify then see if CPU usage drops?

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Yes, my phone is rooted. What is "greenify"?
 
a2441918
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Greenify is an app and is mainly used for maintaining a good battery life. U can find it in http://forum.xda-developers.com/show....php?t=2155737

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zamana
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Greenify is an app and is mainly used for maintaining a good battery life. U can find it in http://forum.xda-developers.com/show....php?t=2155737

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Thanks for the info. I'll give it a try. But I still would like to know which app is causing this...

And (weird), why only the 2nd core? It seems like a very specific bug.
 
zamana
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And can you upload a picture of running services?


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Sure.
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zamana
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Even after killing all apps/services with SystemPanel the 2nd core is still at 100% and the CPU is at more than 54 Celsius...

I'll need to reboot.
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