yashsingh1/xdaforums huggingface dataset:
[Galaxy Ace II Android Development] judas1977:
Hmm... you can say, that current TC kernel sources are based on... zwliew changes (most of latest changes are commited by zwliew)... So i'm confused what do you actually want from [MENTION=5604178]zwliew[/MENTION];))...
[Galaxy Ace II Android Development] Kiras_PL:
So i must admit that im not really satisfied with latest CM11 kernel. Here is why:

- problems with waking up screen during incall

- no ROW I/O sheduler

- lots of reboots. But here i got a question. A couple of weeks ago one user(i dont renember his nick) adviced how to increase CPU freq(without reboots) to about 1150Mhz by changing CPU voltages on various CPU frequences. I made an init.d script with it and it worked really really well. Here is my script:

#!/system/bin/sh

sleep 90

echo varm=0x36 > /sys/kernel/liveopp/arm_step6

echo varm=0x37 > /sys/kernel/liveopp/arm_step7

echo varm=0x38 > /sys/kernel/liveopp/arm_step8

echo varm=0x39 > /sys/kernel/liveopp/arm_step9

And now my question. Did You [MENTION=5604178]zwliew[/MENTION] implemented it ? This really works and now i dont use it(since latest build) and my phone reboots quite often.
[Galaxy Ace II Android Development] fluffi444:
Iam sure you are talking about my buddy ace2nutzer. ;)

Be abviced that the old and still current used uv and oc Algorithm is not well optimized. That the reason why in latest release the uV in NT app was disabled temporarily. As far as i know cocafe did an rewised version and NT app needs some updates according to this.

And i heard also that ace2nutzer was already in discussion with the boys to implement (some of) his findings in kernel/NT app.
[Galaxy Ace II Android Development] Kiras_PL:
Yeah, it was probably ace2nutzer :) i understand now. But now i made init.d script with zwliew recommendations from 2nd post (But im not using frandom) and now my phone works great so i think [MENTION=5604178]zwliew[/MENTION] know now whats going on :)
[Galaxy Ace II Android Development] fluffi444:
Iam more than sure he knows. ;)
[Galaxy Ace II Android Development] ace2nutzer:
So has the old UV / OC and new UV / OC the same HEX values​​? (step voltages)

Hmm, I knew it .. cocafe did not understand me. But do they actually do anything, even the old CPU OC Driver is good enough. The problem is (was) in the NT APP.

But yes Rox and zwliew know now modest :)

When Users make a init.d script with an sleep 90 command, then this can't be happen @ overwritten :):D
[Galaxy Ace II Android Development] zwliew:
relax, i pmed ace2nutzer yesterday and i'm working on bringing those values in the next release.
[Galaxy Ace II Android Development] zwliew:
just some info before the next release comes,

1. i'm going by a release naming scheme. r1, r2, r3. it will no longer be 201406xx, 201407xx, etc.

2. i've include the recommended settings as init.d scripts in the zip file and in the ramdisk of the kernel. you no longer have to use manual scripts to set it as i've already set them for you. cheers! :highfive:

3. test releases will be renamed too. they will no longer have a -test tag behind the file name. instead, test releases will go after a period. r1.3, r2.1, r2.2, etc.

can't think of anything else lol.
[Galaxy Ace II Android Development] ace2nutzer:
Today i flashed 23/06 Build TC and i see new added INTERACTIVE Governor.. but i don't see the new CPU Steps ! So min. CPU ist already 200Mhz.

Then i flashed zwliew-kernel-p-20140618.zip and INTERACTIVE Governor is away :(

And still i don't see the new CPU Steps !

Now i flash latest TC Build again and then i can start to optimize CPU / GPU Voltage Curve !
[Galaxy Ace II Android Development] farru1981:
Hi to everyone, what governor and i/o scheduler are you using? what readahead buffer size do you have configured?

Currently I am using:

CPU Governor: Abyssplug

Min CPU Freq: 200 Mhz

Max CPU Freq: 1000 Mhz

O/I Shceduler: sioplus

ReadAhead Buffer size: 512 KB

What do you think about increasing the readahead buffer to 1024? Will it improve the read/write performance?

Regards,
[Galaxy Ace II Android Development] danny19901:
I normally go with Interactive and noop and leave all OC on stock values but at moment using different kernel with Lagfree and its amazing on 4.4.4 Carbon
[Galaxy Ace II Android Development] judas1977:
@up

but carbon is slow and pretty unusable now
[Galaxy Ace II Android Development] ace2nutzer:
I can confirm that Interactive + noop and 2048kb read ahead buffer + 32 MB pre-allocated Mali Size is very good !

Min. CPU 200Mhz .. Max. 1150 Mhz

But i Worked at the moment to optimize Values on interactive to make it better.

Wait for my next optimization script :)

At The moment is latest TC with stock Kernel the best.. sorry zwliew :D;)

[MENTION=5604178]zwliew[/MENTION] [MENTION=4947931]Rox[/MENTION] i wait for TC Build with new CPU Steps or your codina-p Kernel with new steps to make better CPU / GPU Voltage Curve ! (but please add Gov. interactive, if not it's very boring !) :cowboy:
[Galaxy Ace II Android Development] Rox:
There will be no build with extra steps because it is not stable. I am really busy this days and i will probably be free next week weekend, maybe before.. With new faster internet connection because i am moving in new house.
[Galaxy Ace II Android Development] ace2nutzer:
Hmm OK, But i Think it's Voltage Problem.. i see in source very low Voltages for new Steps.. perhaps that's the reason.

If u make a flashable CWM Kernel with new steps for me, i can try to make it stable by founding better Voltages for new steps !
[Galaxy Ace II Android Development] zwliew:
sorry guys i'm really busy nowadays with school and tests so there weren't any releases lately. but now that the major tests are over, hopefully releases for codina, codinap and zk tweaker will come soon.

here is a quick preview build for codina to those who were waiting. it can't be found in zk tweaker as i don't have time to upload it to the ftp server, sorry.

preview build for codina here
[Galaxy Ace II Android Development] Kiras_PL:
Somebody has already tested it ?
[Galaxy Ace II Android Development] zwliew:
it works, but i'm just giving a preview build.
[Galaxy Ace II Android Development] Kiras_PL:
Can You post changelog ?:D
[Galaxy Ace II Android Development] adamosdz:
The latest build isnt stable.. Reboot after few secounds after boot.. But he has good new values freq 300, 500, 700 and 900.. Reboot even on 1Ghz :/ with interactive/row..
[Galaxy Ace II Android Development] zwliew:
can you send me a last_kmsg
[Galaxy Ace II Android Development] borkins:
Here is some logs after reboot:
[Galaxy Ace II Android Development] zwliew:
r1 has been released! get it from zk tweaker or manually from http://xda.mister-freeze.eu/zwliew/zwliew-kernel-r1.zip

interactive governor has been heavily tweaked and improved for better battery/performance balance.

ksm is now more energy efficient too. there are some other under the hood fixes and improvements.

lastly, i've undervolted the cpu voltages by default a little based on ace2nutzer's recommendations, frequencies above 1ghz should be easier to handle now.

during my testing, i haven't found any reboots. however, there may still be some kinks possibly due to undervolted cpu voltages or other reasons. if you see any, please post a last_kmsg after your reboot. do try overvolting cpu voltages to make sure it isn't due to undervolted voltages too.

thanks and enjoy :)

p.s.: haven't had time to build for codinap yet. maybe soon.
[Galaxy Ace II Android Development] Nathanabrahams:
So much better although I have had 2 reboot and I'm missing sio and sioplus gouverners
[Galaxy Ace II Android Development] zwliew:
Can you send me last_kmsg after reboot like I've said

It's different
[Galaxy Ace II Android Development] Nathanabrahams:
I'll post it later but I haven't had any more reboots I think it was crashed app because it is fine now
[Galaxy Ace II Android Development] zwliew:
good to hear!

btw, can anyone test to see if they see any improvements using frandom?

run this script as root in terminal.

http://xda.mister-freeze.eu/zwliew/test_frandom.sh
[Galaxy Ace II Android Development] borkins:
Reboot while browsing. (CPU 1GHz interactive, CM11-TC build 23.06.14).
[Galaxy Ace II Android Development] zwliew:
i don't see anything much unusual in last_kmsg, can you try increasing the voltages of the cpufreq steps?
[Galaxy Ace II Android Development] borkins:
Yes! I'am little busy right now, but I'll try later for sure! I like the kernel with more CPU frequencies :)
[Galaxy Ace II Android Development] ace2nutzer:
Yeahh...:victory: i wondering that is still little stable with the actually Voltage Curve !

I make actually completely new Voltage Curve... Hopefully for more Stability and UV > 1Ghz

When i finished all tests, i contact zwliew.

First CPU Voltages.. later GPU Voltages.. because CPU is much more important...
[Galaxy Ace II Android Development] shoxieJESUS:
@zwlew, this is my last_kmsg. I catch 2 random reboots. On last CM11 build.
[Galaxy Ace II Android Development] ace2nutzer:
For now it's not needed to report Bugs @ reboots.. because this is related by OC over 1Ghz and by the new CPU Frequencys !

U can expect in 2 - 3 Days fully optimized Varm and Vbbx Voltage Curve for all Steps... (without the new Steps... because i don't have it in my currently Kernel...) New Steps i can make it later.. when i flash new kernel...
[Galaxy Ace II Android Development] exodius48:
yes same with me
[Galaxy Ace II Android Development] borkins:
Yestetday i changed the varm values a little bit and for now i haven't reboots.

Try this script if you want. Extract and paste it in "/system/etc/init.d" and then reboot or run it in Smanager.

Edit: I forgot. If you use init.d script change the permissions of the file to 755 (rwxr-xr-x), when place it in init.d folder.
[Galaxy Ace II Android Development] exodius48:
Do I still need paste it in init.d folder If I have run it with Smanager?
[Galaxy Ace II Android Development] borkins:
No, but if u want to run it automatically after boot it's faster, if you put it in init.d folder i think.
[Galaxy Ace II Android Development] Master-ZizO:
Lastest Build r1 very unstable.. more more random reboots

and can't get logcat.. i type "cat /proc/last_kmsg > /sdcard/last_kmsg.txt"

it says no such file or dir
[Galaxy Ace II Android Development] ace2nutzer:
Please don't spam the thread with reporting random reboots.. we know the problem.. it will be fixed in next build. :angel:
[Galaxy Ace II Android Development] zwliew:
try the script posted by someone above. if you still ahve reboots, try increasing those voltages in the script.

btw to all, i don't see much of an improvement using frandom over random. i posted a script to test the difference 1 or 2 pages ago. if no more results of improvement are reported, i'll be removing frandom in the next build.
[Galaxy Ace II Android Development] shoxieJESUS:
How on this frandom script? Please write code for terminal.
[Galaxy Ace II Android Development] ace2nutzer:
http://xda.mister-freeze.eu/zwliew/test_frandom.sh
[Galaxy Ace II Android Development] exodius48:
I get blackscreen after use your script.
[Galaxy Ace II Android Development] borkins:
Well, I get one reboot after use my script. I was disappointed too. But I did not guaranteed anywhere a success for all phones.

I just give a you simple script to try it, and change the uV by yourself if necessary. Seems the phones are different, you must find the best undervolts for your phone by yourself.

For example I found that there is a big difference between step 8 and step 9 ( 900-1000 MHz ) and changed step 8 in the script from 0x26 to 0x2b, and no problems so far.

If i get another reboot, i'll change the steps again... and again until I find the best uV for my phone.
[Galaxy Ace II Android Development] exodius48:
Ohh.. I dont understand about uV.. -_-
[Galaxy Ace II Android Development] zwliew:
send a last_kmsg again thanks. i'll have another look at it.

i'm going to post a test build with original voltages. please report back whether it has reboots.

edit: r1.4.5 test build has been uploaded on xda download server(click "download" above lol). please try it out and see if there are any reboots. if there are, please post a last_kmsg.
[Galaxy Ace II Android Development] borkins:
Hmm, I can't see the test build r1.4.5 on the server. I see only build r1 there. Can someone paste a direct download link here?

Thanks in advance!
[Galaxy Ace II Android Development] zwliew:
by xda server i mean the download server on this thread lol

http://xdaforums.com/devdb/project/dl/?id=7453
[Galaxy Ace II Android Development] exodius48:
I cant take kmsg : No such file or directory
[Galaxy Ace II Android Development] shoxieJESUS:
Maybe use adb?
[Galaxy Ace II Android Development] Daniele11:
I have only to flash the zip from the recovery to install this kernel? And if I want to reinstall the stock kernel I have to reinstall the rom?
[Galaxy Ace II Android Development] zwliew:
Yes

In adb/terminal do cat /proc/last_kmsg > (directory file u want to store in)
[Galaxy Ace II Android Development] exodius48:
This is report for test version.
[Galaxy Ace II Android Development] exodius48:
[MENTION=5604178]zwliew[/MENTION] I have reboot recently but I cant tak kmsg again, Im using this code, same with code 1st report above: adb shell cat /proc/last_kmsg > kmsg.txt

but the result is /system/bin/sh: cat: /proc/last_kmsg: No such file or directory
[Galaxy Ace II Android Development] exodius48:
New last_kmsg...I get random reboot recently: http://www.datafilehost.com/d/35080154
[Galaxy Ace II Android Development] borkins:
Reboot while typing in text editor. ( with test kernel r1.4.5 - CPU interactive, 1GHz )
[Galaxy Ace II Android Development] ace2nutzer:
I am not yet finished with CPU Voltages optimizations Curve .. but I can ever give you some tips:

make a init.d script with these Values or add this to your existing CPU Voltages script..

This is for Stock kernel TC CM 11

#!/system/bin/sh

# CPU Voltages

echo set_volt=1 > /sys/kernel/liveopp/arm_step03

echo vbbx=0x8f > /sys/kernel/liveopp/arm_step02
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step03
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step04
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step05
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step06

# And here your CPU Voltages...
# Example:

# 800 MHz
echo varm=0x24 > /sys/kernel/liveopp/arm_step03

And for zwliew Kernel:

#!/system/bin/sh

# CPU Voltages

echo set_volt=1 > /sys/kernel/liveopp/arm_step03
echo set_volt=1 > /sys/kernel/liveopp/arm_step07

# 500 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step04
# 600 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step05
# 700 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step06
# 800 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step07
# 900 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step08
# 1000 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step09
# 1050 MHz
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step10

# And here your CPU Voltages...
# .......

NOTE:

For TC CM 11 Stock Kernel:

Step02 (600Mhz) and step03 (800Mhz) are much different as the other steps !!

This means:

600 and 800Mhz needs more voltage on scaling as the other steps !.. (like ondemand interactive etc...) but without scaling ---> performance gov. 600 Mhz can run with a very low voltage...

NOTE 2:

The Step2 (600Mhz) is much more different (and unstable) as the step03 (800Mhz) !

Therefore:

Let 600 and 800 Mhz by default and make UV / OV / OC with the other steps.. when u are finish (stable) then u can beginn with step03 (800Mhz) with UV ! When it's stable too, then the same with 600 Mhz ! Then u are done and have a very great UV !

TIP 2:

2 Find Stable Voltage for every (single) step:

Set Performance gov.

Set Voltage on step00 then switch to step01 and back to step00.. now the setted voltage is active on the step00 and u can beginn to test stability with the App: "Stability Test" and Run "CPU + GPU Stability Test" for minimum 2,5 hours !

Do this with all steps.. the u are done.

At the End u have stable Voltages with Performance Gov... but no with ondemand, intercative etc.. to make it stabel with them.. simply add on every step 3 Voltage Steps example: if step00 was stable with 0x0b then +3 is = 0x0e

I hope this How-TO can help u
[Galaxy Ace II Android Development] exodius48:
I dont understand it bro..
[Galaxy Ace II Android Development] ace2nutzer:
lol .. what u are not understood ??
[Galaxy Ace II Android Development] exodius48:
this

# And here your CPU Voltages...

# .......

How to set it?
[Galaxy Ace II Android Development] ace2nutzer:
Ah okk..

Ok this is my actually CPU / GPU UV but not Final Version !! Pleas use it only as reference or testing.. don't add this at the moment on source:

#!/system/bin/sh

# CPU undervolting

echo set_volt=1 > /sys/kernel/liveopp/arm_step03

echo vbbx=0x8f > /sys/kernel/liveopp/arm_step02
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step03
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step04
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step05
echo vbbx=0x8f > /sys/kernel/liveopp/arm_step06

echo varm=0x0e > /sys/kernel/liveopp/arm_step00
echo varm=0x0e > /sys/kernel/liveopp/arm_step01
#echo varm=0x17 > /sys/kernel/liveopp/arm_step02
#echo varm=0x1f > /sys/kernel/liveopp/arm_step03
echo varm=0x2e > /sys/kernel/liveopp/arm_step04
echo varm=0x32 > /sys/kernel/liveopp/arm_step05
echo varm=0x35 > /sys/kernel/liveopp/arm_step06
echo varm=0x39 > /sys/kernel/liveopp/arm_step07
echo varm=0x39 > /sys/kernel/liveopp/arm_step08
echo varm=0x39 > /sys/kernel/liveopp/arm_step09

# GPU undervolting

echo 0 vape=0x18 > /sys/kernel/mali/mali_dvfs_config
echo 1 vape=0x18 > /sys/kernel/mali/mali_dvfs_config
echo 2 vape=0x18 > /sys/kernel/mali/mali_dvfs_config
echo 3 vape=0x1c > /sys/kernel/mali/mali_dvfs_config
echo 4 vape=0x1c > /sys/kernel/mali/mali_dvfs_config
echo 5 vape=0x1c > /sys/kernel/mali/mali_dvfs_config
echo 10 vape=0x29 > /sys/kernel/mali/mali_dvfs_config
echo 11 vape=0x29 > /sys/kernel/mali/mali_dvfs_config
echo 12 vape=0x29 > /sys/kernel/mali/mali_dvfs_config

#

And don't forget:

0x39 is already the max. Voltage for CPU.. not 0x3f !
[Galaxy Ace II Android Development] borkins:
[MENTION=5840412]ace2nutzer[/MENTION], what that means:

"... set_volt=1" and what actally is "vbbx"?
[Galaxy Ace II Android Development] ace2nutzer:
Yeah whatch this in the Slot.. is since the new CPU OC Driver by Cocafe !

By default step03 (800Mhz) setting voltage is disabled ! Because this step is different and unstable as i said !

cat /sys/kernel/liveopp/arm_step03

and u will see Set Voltage: Disabled

with the command set_volt=1 > arm_step03 u can changing the Voltage..(u see then: Set Voltage: Enabled) otherwise it makes no effect when u change the varm but it shows only the new voltage.

vbbx is bias Voltage to optimize power consumption and increase the stability!

I have already contact cocafe to ask what is vbbx..

Vbbx min. is 0xdb and max. is 0x8f

It makes effect starting at 600 Mhz @ less Varm !!!
[Galaxy Ace II Android Development] zwliew:
new test release r1.5!

i've cleaned my source and only included commits that actually work without any regressions on the kernel. for all intents and purposes, this SERIOUSLY shouldn't have any reboots. download it in the xda download server. http://xdaforums.com/devdb/project/dl/?id=7492

i've dropped row scheduler as it isn't working as well as i've thought. using more flash-friendly scheduler now.

if this works properly, i can go back to making proper releases again!
[Galaxy Ace II Android Development] exodius48:
I see on performance settings from CM11 by TC, scheduler changed to DEADLINE, Processor INTERACTIVE. All "Set on boot" dont ticked, are they right?
[Galaxy Ace II Android Development] zwliew:
yes..
[Galaxy Ace II Android Development] exodius48:
Still get blackscreen on lockscreen. I dont know this bug from CM or kernel. :confused:
[Galaxy Ace II Android Development] adamosdz:
For me it isnt stable.. Sorry :/ ..Several seconds after boot.. Reboots :( Rom: Rox's CM 11 kernel: zwilew... Gov. Inter/Noop No oc&uv graphic.. Even 1000 Mhz :(
[Galaxy Ace II Android Development] zwliew:
last_kmsg please
[Galaxy Ace II Android Development] hafizulpijul12:
can I flash this kernel on cm10.2?
[Galaxy Ace II Android Development] borkins:
For me isn't stable too. :/ I get an instant reboot when starting the script with Smanager ( i removed the command 'sleep 90' only for the tests ).

I'm guessing that my CPU can't handle 300 & especially 400 MHz at 937.5 mV ( varm=0x13 ). Looks it's too low for my CPU. For example in my script the varm values for 300 MHz ( 0x1d=1062.5 mV ) and 400 MHz ( 0x1f=1087.5 mV ) are a bit higher, but i look for more stability, than the battery saving.

Does anybody knows what are the factory voltages for 200, 400, 600 & 800 MHz? I need it, because i think they are important points to find the best voltages for the rest of the frequencies.

This is my Varm_Voltage_MHz table for 15 freq. steps:

0x18 1000 mV 100 MHz
0x19 1012.5 mV
0x1a 1025 mV 200 MHz
0x1b 1037.5 mV
0x1c 1050 mV
0x1d 1062.5 mV 300 MHz
0x1e 1075 mV
0x1f 1087.5 mV 400 MHz
0x20 1100 mV
0x21 1112.5 mV 500 MHz
0x22 1125 mV
0x23 1137.5 mV
0x24 1150 mV 600 MHz
0x25 1162.5 mV
0x26 1175 mV
0x27 1187.5 mV
0x28 1200 mV
0x29 1212.5 mV 700 MHz
0x2a 1225 mV
0x2b 1237.5 mV 800 MHz
0x2c 1250 mV
0x2d 1262.5 mV
0x2e 1275 mV 900 MHz
0x2f 1287.5 mV
0x30 1300 mV 1000 MHz
0x31 1312.5 mV
0x32 1325 mV 1050 MHz
0x33 1337.5 mV
0x34 1350 mV 1100 MHz
0x35 1362.5 mV
0x36 1375 mV 1150 MHz
0x37 1387.5 mV
0x38 1400 mV 1200 MHz
0x39 1412.5 mV 1250 MHz

My CPU like it for now. With it i have reboots only with 1200 and 1250 MHz.

Here are the logs after the reboots:

EDIT: Added new last_kmsg log ( in the zip file):
[Galaxy Ace II Android Development] zwliew:
The last_kmsg cut off at the last part D: if you have a new one please send again thanks
[Galaxy Ace II Android Development] btb55:
I like to try your script but I don't have the folder 'init.d' in system/etc Should I just create it? I'm using Carbon KK latest version.
[Galaxy Ace II Android Development] ace2nutzer:
really strange.. i will recheck the values...

About init.d: Ask the dev. if this ROM has init.d support.. if not u can implement this..

Just search in Forum here.. how to add init.d support. (not complicated)
[Galaxy Ace II Android Development] exodius48:
[MENTION=5604178]zwliew[/MENTION] I get reboot with r1.5 kernel recently
[Galaxy Ace II Android Development] ace2nutzer:
[MENTION=5210243]exodius48[/MENTION]

Try Build: cm-11-20140607-UNOFFICIAL-codina.zip with Stock Kernel.. and see if u still have random reboots. ;)

I had random reboots with builds: cm-11-20140706-UNOFFICIAL-codinap.zip and cm-11-20140623-UNOFFICIAL-codinap.zip.

So I am now gone back to the build: cm-11-20140607-UNOFFICIAL-codinap.zip and everything is ok for now !

I Don't know what is the problem... I'm very busy so i decided to not investigate the issue.

Now BLN with blink and trebuchet ( settings ) is working properly :D

And now i made again new Voltage Curve with the old steps and driver...

And the bad Message: The released new Voltage Curve by me is probably invalid because of unstable Builds.. as i said.. very bad...:(

But don't worry, i wanna try it later again when Builds with new steps and OC Driver is stable.:cowboy:

But we can use the old (optimized) Voltages with new OC Driver ! That goes !

BUT: with new OC Driver.. so with Vbbx Voltages setted @ 0x8f we all can do more Undervolting.. without instability...

Just waiting for stable releases ....
[Galaxy Ace II Android Development] dirtyl0lharry:
100 to 900mhz gave me reboots. Now im on stock cm11 kernel.
[Galaxy Ace II Android Development] zwliew:
those with reboots, can you try using ondemand governor?