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Kernel Wakelock at 100% 24/7 Driving me Crazy!!

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No matter what ROM I flash or kernel I flash I always seem to have this show up. Only once I flashed a ROM/Kernel and it wasn't there. I made a nandroid backup of the ROM and then tried a different ROM. Same issue popped up again. So I ran superwipe and then restored my nandroid and it's doing it again!! I am using BetterBatteryStats to monitor and this shows up under Kernel Wakelocks. I have no clue what's causing it and it's draining my battery at an incredible rate. I've tried wiping cache and dalvik, reflashing kernels, reflashing ROMs!! I can't tolerate this anymore and it's driving me nuts!!! How do I get rid of it and what the hell is causing it!?! THANK you to anyone in advance who has ANY idea what this is or how to stop it!!!!

So freaking weird. This exact thing happened to my girlfriends phone out of nowhere a couple days ago. The weird thing? It is an Optimus V not a Sensation. I fixed it by just wiping everything and re-installing.

I am coming from a T-Mo G2x and NEVER had this happen once and I owned that phone for a year.

Anyone have any ideas I've been troubleshooting this forever and I am so close to slamming it against a wall!!!

Mine says the same thing but there isn't any battery drain for me. Are you sure 0 s doesn't mean 0 seconds? And that it's used 100% of the kernel wakelocks since there isn't any other wakelocks?

boodee0110 said:
Mine says the same thing but there isn't any battery drain for me. Are you sure 0 s doesn't mean 0 seconds? And that it's used 100% of the kernel wakelocks since there isn't any other wakelocks?
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Click to collapse
When I had one flash with 6.5.4 that kernel wakelock wasn't showing at all ever...and battery lasted over a day. When that kernel wakelock does show it's always at 100% and I'm lucky to get 5-6 hours out of a 100% charge.

I have now ran superwipe on my phone at least 20 times and also manually formatted everything through 4ext recovery and re-flashed ARHD 6.6.0 with all of the different options and yet I still continuously get this kernel wakelock and it's sucking my battery about 10% every 20 minutes!! When I had the last version of ARHD the same thing happened but I just ran superwipe a few more times and it stopped and as soon as it didn't show in kernel wakelocks anymore my battery life was amazing! Can anyone else confirm they have this under their kernel wakelocks using betterbatterystats? You can download it free right from XDA http://forum.xda-developers.com/showthread.php?t=1179809 I'm using 1.7.1...someone please help!!!

Yeah dude.. Nothing wrong at all.
0s means zero seconds of wakelock...
Check the built-in battery stats.
Is the "Awake" section a solid blue streak?

Battery drain from a non-running app?

Hi. Its been a few days since my Nexus 5 battery has been drained pretty fast. Lasts only about 4 hours after fully charged with little use. Since I recently started working in a really poor reception area I figured that was the problem, my phone constantly trying to find a signal, but when I go to the details, I see that Instagram is responsible for using up 40% and it wasnt even running!
Im no developer, or even experiencied android user, but, how is this possible?
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javiwankenobi said:
Hi. Its been a few days since my Nexus 5 battery has been drained pretty fast. Lasts only about 4 hours after fully charged with little use. Since I recently started working in a really poor reception area I figured that was the problem, my phone constantly trying to find a signal, but when I go to the details, I see that Instagram is responsible for using up 40% and it wasnt even running!
Im no developer, or even experiencied android user, but, how is this possible?
Click to expand...
Click to collapse
Welcome to android and app permissions. It's accessing a number of things on your phone with location probably being the number one. Get something like xposed and app ops to tame what the app is allowed to access. You should also get gsam or BBS to get a closer look at what is using your batery.

This happened to me last night with a messaging app I used to replace hangouts. It dropped about 12% overnight with data and WiFi all off.
I looked in battery use and messaging sucked most if it up. I cleared data in the messaging app and that fixed it. Later today I switched back to hangouts until I download another messaging app. I don't trust that one now.
Sent from my Nexus 5 using XDA Free mobile app

Thanks for your reply. I'm guessing I need root for Xposed and those other apps ? Like I said I'm just an ex iPhone user who just converted to Android. So haven't given myself the time to tweak around.
Sent from my Nexus 5 using Tapatalk

you dont need xposed. looks like instagram had a stuck process or was stuck syncing. a reboot usually fixes that. there are other ways to fix things, other than installing xposed(as xposed could bring in its own issues). there are many apps out there that help, greenify being one of them. also, there are a few great apps to help you stop wakelocks that are out of control.

kworker/Android OS Battery Issues

Hello all,
I'm hoping someone can help me figure out what exactly is causing these issues as I've tried all sorts and I can't figure it out.
I'm getting battery drain via android OS (kworker process according to BBS) and I don't know what's causing it. I've attached some screen shots to highlight the problem;
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As you can see my phone isn't even awake according to the battery summary screen.
Does anyone know what could be causing this? Or how I can figure out what (app?) is using the kworker process?
I've restored my phone to stock, clean flashed mahdi and installed an earlier version of AK kernel (v068) that I know for certain I didn't have these issues on. However, I'm still getting the issue on a setup I know for certain I wasn't having any issues on a couple of weeks ago.
I've also tried restoring a nandroid from a few weeks ago that I know for certain didn't have any issues (I keep a backlog of 5 previous nandroids each time I update my kernel etc to try and ensure I always have 1 stable version) but I'm still getting the issue on that too.
Thanks for any advice/suggestions.

Anyone? It's driving me crazy! Haha
I'm still getting decent battery life despite this process error, it's just before this I was averaging 0.2% per hour while idle, I'm now averaging 0.6%
Should I be looking for an app as a culprit or is it the kernel/rom or something else completely? I'm guessing it's not the kernel/rom as I've ran this setup before without issues, but what I have managed to find on the kworker process online is that it's kernel related. :s

Just for information for anyone who finds this thread after having similar issues, I've solved it, I still have some kworker CPU time but that's to be expected - its MUCH lower than it was in the screenshots above.
One of or all of the following reduced my kworker process CPU times to a reasonable amount.
Set Wifi Ip address to static rather than dhcp on home network
Changed CPU governor from smartmax to intellimm (ak kernel)
Disabled all services in "Google play services" containing "location.reporting"
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Terrible idle battery drain!

I have a terrible battery drain when my phone is idle. Tried everything, but nothing solved it. Ever since Lollipop I have this issue.
Clean flashed MM and still nop. Flashed ElementalX 6.04 yesterday which still couldn't solve it. This is frustrating :crying::crying:
I have disabled everything too. No Wifi, data, bluetooth, location...etc (My phone is not a smart phone anymore)
Only adaptive brightness is enabled.
Yesterday I fully charged and went to sleep to find out it has drained 28% after a 7 hours sleep. Removed all the unpopular apps (suspicious apps) as well. BetterBatteryStatus says my phone has been in DEEP SLEEP throughout the whole time too.
Please give me a solution
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How old is your phone?? You might need to replace the battery. Especially you've already done everything from kernel, to clean flash to disabling apps and settings

your bstats also tells no abnormality? how about its partial wakelocks? can you post those so we can check it out?

Mojar7070 said:
How old is your phone?? You might need to replace the battery. Especially you've already done everything from kernel, to clean flash to disabling apps and settings
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My phone is 18 months old. Yeah I guess my battery has run out of its course
Thank you for the reply

phantom146 said:
your bstats also tells no abnormality? how about its partial wakelocks? can you post those so we can check it out?
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Click to collapse
According to BBS my phone has been in deep sleep throughout the whole time. I'm assuming its the battery, I need to replace it may be.
I charged my phone again. I will post partial wakelocks too in few hours time.
Thanks alot

Even though it may not make a huge difference but you can try draining the battery out to 0 (until the phone can't stay on even after a force power on) and a full charge (30 mins to an hour overcharging after you see full battery indicator).. Gluck.

I replaced my battery, I was getting hard reboots as well. But wow with a new battery and marshmallow my nexus is like a new device.

99% no or unknown signal.
That could be the cause of your drain, when the phone has no signal or poor signal it will use a lot of battery to keep the connection alive. Set aeroplane mode on
Sent from my Nexus 5 using Tapatalk

maccboy2010 said:
I replaced my battery, I was getting hard reboots as well. But wow with a new battery and marshmallow my nexus is like a new device.
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Glad it was fixed

Xperia XZ Serious Overheating Issues

Hey guys in the past week my XZ has been having some serious overheating issues. Even just idling at the home screen it sits at around 40-45c. It seriously makes the phone unusable since when you open anything it just warms up quick and throttles hard. I was thinking it was the last patch that came out so I unlocked the bootloader and tried out a couple of roms like carbon rom which was buggy as hell and slimbit aosp. No improvement. Tried out eXistenZ 6.0 which is what im still on now and no improvement. I honestly have no clue whats going on if anyone can help me that'd be great. Do you guys think my battery could be needing replacement? The phone isint even a year old. I have also tried the FSCv2 mod and still no improvement.
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Change habit that after clean flash instantly install everything that exists in the playstore , especially various CPU/memory/battery monitors.
Install one aplication at a time until you find the problem.
btw, carbonrom Is excellent rom like all the other AOSP ROMs for the XZ

uglavnom_bezopasni said:
Change habit that after clean flash instantly install everything that exists in the playstore , especially various CPU/memory/battery monitors.
Install one aplication at a time until you find the problem.
btw, carbonrom Is excellent rom like all the other AOSP ROMs for the XZ
Click to expand...
Click to collapse
I don't think its a certain app I installed since it just started happening out of nowhere after no new apps have been installed. Android battery menu doesn't show any excessive battery drain from apps either. Even after I did a clean flash it was getting super hot and throttled in the setup process.
*Edit* It actually got to 50c while simply replying to your reply in Chrome and lagged tf out of my keyboard. Literally about to throw this phone at a wall.

So I've undervolted the cpu and the phone still reached 53c after browsing Instagram for about a couple minutes. Im seriously loosing my **** at this point. Im seriously thinking that this phone needs a new battery or something even tho its less than a year old.

Update. Did a fresh install of stock rom using flashtool and it throttled during the setup process and still throttles with no apps just trying to send a text message or simply play a song using google play music. Seriously nobody has a clue what is going on? I literally have to have my phone next to a fan just to do anything on it.

I discovered that my battery is only at 38c usualy so I think its safe to say that my battery is okay. My cpu is constantly pinned at 45+ and I only get about 3-4 hours out of a full charge. Did google play services get an update or something? I have no apps installed in my phone still. I seriously need any help