yashsingh1/xdaforums huggingface dataset:
[Galaxy Ace II Android Development] ChronoMonochrome:
Not sure if this option related to min CPU freq, but now I see, there's no need to mess up with CPUfreq, since we just can let LiveOPP boot with a custom freq until fully booted. To check at which freq a phone does boot up, you just need to catch this message https://github.com/ChronoMonochrome/Chrono_Kernel-1/blob/master/drivers/mfd/db8500-prcmu.c#L5789 in dmesg.

Basically just a small installer update for OmniROM in order to allow using custom fstab from partition /ramdisk , although there's also a change to use SDcardfs instead of Fuse FS on ROMs that support it (5.0.x, 5.1.x).
[Galaxy Ace II Android Development] ace2nutzer:
no, it has nothing to do with min cpu freq .. but without this option it just stuck @ 800mhz.

Okay i'll take a look in dmesg by a chance next time i'm playing with ADB ;)
[Galaxy Ace II Android Development] ChronoMonochrome:
You'll need to change pr_info to pr_err in a line linked above else you won't see anything in log.
[Galaxy Ace II Android Development] saimyounas786:
Max ddr oc?
[Galaxy Ace II Android Development] elojohny:
In 4.2.6 I have many FC's

Wysłane z mojego GT-I8160 przy użyciu Tapatalka
[Galaxy Ace II Android Development] shadow252:
Me too on CM13. I suspect it's due to storage changes cause I can't see sdcards in settings and apps related to them(like file managers) is generally fc.
[Galaxy Ace II Android Development] ChronoMonochrome:
For those, who have faced FC in apps, can you remove file /ramdisk/.use_sdcardfs and reboot the phone? This will revert to use FUSE FS instead of sdcardfs. Need some feedback.

You shouldn't use r4.2.6 on cm13. I realized that the latest change introduced for OmniROM made kernel currently incompatible with CM13. And besides of that, it has outdated a bit ramdisk.
[Galaxy Ace II Android Development] borkins:
I tried most of the clocks above 1000 MHz ( even above 1200 Mhz ), but the risk

of FS corruption above 1100 MHz is too high and the phone often reboots.

Such random reboots are not so innocent, they can lead to data lost and FS corruption too.

So far, I tried my best to reduce them, during the OC with that script.
[Galaxy Ace II Android Development] Noxialis:
Reporting in...

Everything seems fine, having the phone connect to the internet after a day causes free ram to drop to 173MB thanks to Twitter, Messenger and YouTube syncing in. Before, any one of these three would cause the phone to freeze up and seemingly panic, causing FCs left and right and making the phone unresponsive, sometimes even going so far as to restart SystemUI or soft reboot on its own.

Throughout the day, the phone ran great, no hiccups what-so-ever, Music didn't close down on me, not even once (I only use this as a dedicated mp3 player and a backup phone).
[Galaxy Ace II Android Development] Sylvinette:
Is the latest build compatible with VanirKK? Now on 4.1.1 version, it seems my phone battery drain after reboot so consumed.
[Galaxy Ace II Android Development] shaqman89:
Yes, it is compatible. I'm using it just fine.
[Galaxy Ace II Android Development] Mohamed Elhadad:
i have stock JB and download that (chrono_kernel_r4.2.6)

just flashed it through stock recovery

and i will be able to use custom roms ????
[Galaxy Ace II Android Development] shaqman89:
For custom ROMs, you only need custom recovery, but yes, this kernel includes a custom recovery.
[Galaxy Ace II Android Development] Mohamed Elhadad:
ok so i can flash it through stock recovery to have custom recovery and flash any roms i want???

what's the best 5.1.1 rom that have none bug caz i'm new with that device and saw some roms which have video recorder bug
[Galaxy Ace II Android Development] Noxialis:
SergeyL's CM12.1 works, also Chrono's ROMs.

As far as I know, the vid recording bug has been fixed in that and in his CM13 build. Not sure if the other ROMs have implemented it
[Galaxy Ace II Android Development] saimyounas786:
how to run gta sa full speed?
[Galaxy Ace II Android Development] shaqman89:
Please stop spamming threads. Post where this is related and appropriate. If not, just post it in the general thread, else you'll just be ignored.

As for your question, I reiterate, most of us don't know since we don't play that game. If one of us do know, we would answer it without you needing to spam all of the threads.
[Galaxy Ace II Android Development] Far'z:
may I help my

I install the kernel that you made ​​and I want to switch vpn vpn and when I am active cellular data why my back is not active

Can you fix it :o :o
[Galaxy Ace II Android Development] ChronoMonochrome:
For working VPN you should move module /system/lib/modules/tun.ko to /system/lib/modules/autoload and reboot the phone.

Since many people seem to use VPN, I'll consider building VPN module as a part of kernel instead.
[Galaxy Ace II Android Development] PolishVodka:
Somewhere on github I was reading about not working VPN on KitKat (and above probably) when driver its builded as module. But I don't use this feature at all, so cannot confirm.
[Galaxy Ace II Android Development] saimyounas786:
Will you make overclock more ?
[Galaxy Ace II Android Development] shaqman89:
Strange, I'm using the current kernel with vpn just fine. I don't remember ever doing anything special, and my autoload folder is empty.

---------- Post added at 05:23 AM ---------- Previous post was at 05:21 AM ----------

Overclocking is not limited by the kernel. Even now there are frequencies more than 1200, but at the early stage of kernel development, many people has tested that it was just not stable enough, so it makes no sense to put higher frequencies.
[Galaxy Ace II Android Development] ChronoMonochrome:
On some kernel builds (not standalone ones) TUN module is already built as a part of kernel.
[Galaxy Ace II Android Development] littledude072:
(old?) bug turn on into recovery

quoted from

http://xdaforums.com/galaxy-ace/ace-2-develop/cyanogenmod-11-28-04-2015-t3095047/page50

ive also been experiencing this, except on segeyls cm12.1 and philz. i dont remember which kernel version started this, but im pretty sure it was +4.1. ill probably reflash from 4.0 then up to latest. to me its not much of an issue since recovery boot takes only a few seconds, its probably a redundant file from a previous version not used anymore
[Galaxy Ace II Android Development] shaqman89:
Could it be recovery issue?

I've been using ChronoMonochrome's kernel in vanirkk, 6.0.1, cm11, omni, euphoria, and none had those issues.

True, they all have default recovery which is Philz.
[Galaxy Ace II Android Development] saimyounas786:
IS THIS KERNEL STABLE

I MEAN NO LAG DURING HEAVY MULTITasking
[Galaxy Ace II Android Development] ChronoMonochrome:
Confirmed. It should have been appear somewhere in r4.1.1-r4.2.x after noticing by me some weird issues with j4fs and param modules. Thought I fixed these problems with the revert of the gereric module update. Not sure about a cause of this bug, but indeed, some changes merged in r4.2.x are still causing it.
[Galaxy Ace II Android Development] ChronoMonochrome:
New build r4.2.7 is UP!

Changelog

fixed shutdown / power on sequence bug

fixed sdcard mount issue on CM13

VPN support is enabled by default without need to load module tun first

Enjoy!
[Galaxy Ace II Android Development] junnickbefore14:
The latest kernel, is that work fine with cm13?
[Galaxy Ace II Android Development] saimyounas786:
Can anyone post their stable undervolting settings?

my phone goes extreme hot
[Galaxy Ace II Android Development] Far'z:
ok thanks i will try again
[Galaxy Ace II Android Development] borkins:
I got one SW reboot after some long freezes (r4.2.7), while tried to open my browser and the XDA forum page.

This is a dmsg log after the reboot, hope it's helpful.

Edit: Browser FC often, even when just reading. :/
[Galaxy Ace II Android Development] mfawonkpo:
Please, stop spamming oot question, you have already told before
[Galaxy Ace II Android Development] ChronoMonochrome:
Indeed there is something wrong with DHD (wifi) module. I've some guesses why it might happen, will upload a new version soon.

Nope, this isn't offtop here, but I'm not posting my UV settings because they are just too extremal and likely will not work stably on another phone. Undervolting is a pretty delicate process and requires much testing. There's an artilcle about undervolting phones with u8500 SoC - https://github.com/mkaluza/i9070_kernel_CoCore-E/wiki/Undervolting-janice .

UPD. uploaded r4.2.8 with some reverted changes regarding modules, hopefully WiFi now will work normally.
[Galaxy Ace II Android Development] borkins:
After first boot on r4.2.8 my mobile network started for a while, and then dissappear, and start until reboot.

But, if I remember correctly it's for 2nd time on r4 kernel. :?
[Galaxy Ace II Android Development] ChronoMonochrome:
Can anyone confirm this issue with the network on r4.2.8? I don't have any WiFi networks near, so I can't it test right now unfortunately.
[Galaxy Ace II Android Development] shaqman89:
Do you mean by data is not connecting?

It seems I have similar symptoms, but only on 2g network.

But then I'm not sure it's an issue since in my area it's not strange to have missing signal.

As for WiFi, I have no issues.
[Galaxy Ace II Android Development] borkins:
There is no signal at all - the icon is empty like on reboot.

I didn't use the mobile data, only Wi-Fi.

The moblie network signal (I'm using 2G too) in my area is always full.

Often on soft-reboot the Wi-Fi can't be turned on. Maybe because the module is not loaded.
[Galaxy Ace II Android Development] shaqman89:
So, just Wi-Fi?

No issues here, and haven't got any soft reboot so far on 4.2.8
[Galaxy Ace II Android Development] jmio:
I can confirm I have the same issue on R4.2.7
[Galaxy Ace II Android Development] ChronoMonochrome:
Just FYI, you don't need to report issues on older kernel version, especially since it was fixed in the later ones.
[Galaxy Ace II Android Development] saimyounas786:
no changelog for 4.2.8
[Galaxy Ace II Android Development] jmio:
Sorry, but there is no changelog related to R2.7.8, we cannot know that you have fixed it already, you only said that you guessing where problem is and will try to fix it.
[Galaxy Ace II Android Development] ChronoMonochrome:
Ok, there was no changelog for R4.2.8, but issue reported from r4.2.7 seems to be fixed in latest build.
[Galaxy Ace II Android Development] thealliens:
Hello everyone. Can someone recommend me a version of a stable kernel, i am on stock rooted jelly.
[Galaxy Ace II Android Development] saimyounas786:
chrono kernel
[Galaxy Ace II Android Development] thealliens:
And what version?
[Galaxy Ace II Android Development] bebolint98:
Install the latest r4.2.8 for me with cm11 there is no problem.
[Galaxy Ace II Android Development] thealliens:
K i will do that
[Galaxy Ace II Android Development] Culateralligator:
When you're flashing kernel to get a newer CWM, it doesn't matter which version you flash, since kernel will be changed at the moment you install a new ROM.

Just be sure the kernel you flash has new CWM/TWRP.
[Galaxy Ace II Android Development] thealliens:
I flashed r4.2.8 i think and hit restart phone and soft bricked the phone. Q: could i install cm 12.1 without that restart that i did and soft bricked it?

I flashed stock just now and i thing first i will install kk aosp with temp cwm, then kernel and at last cm 12.1
[Galaxy Ace II Android Development] Revan335:
Changelog for 4.2.8 and 4.2.9, please!

Greetings and Thanks!
[Galaxy Ace II Android Development] ChronoMonochrome:
Changelog for r4.2.9:

updated wifi driver sources from samsung i9300 sources drop

some minor fixups

As for r4.2.8, it was a release with a just one bugfix (I don't even remember for what exactly), but you can find it some posts above.
[Galaxy Ace II Android Development] mfawonkpo:
Did you add support for the latest sergeyl cm 13..??
[Galaxy Ace II Android Development] ChronoMonochrome:
Already supported, but it still has outdated ramdisk - so GPS and storage swap won't work.

As soon as I'm back to 6.0.x releases, I'll merge these changes to kernel as well.
[Galaxy Ace II Android Development] Far'z:
Hi chrono why I'm on install version r4.2.9 I can not turn on wifi

My position taking stock rom XXNB1

Can you fix it
[Galaxy Ace II Android Development] ChronoMonochrome:
Stock is untested by me. R4.2.9 only has updated wifi driver; you should be fine with r4.2.8 if it works with stock. P.s. Please, do NOT quote whole OP.
[Galaxy Ace II Android Development] Far'z:
Ok thanks I will try again

Sorry about my close all the citations you :D :D
[Galaxy Ace II Android Development] Dr360r:
Sorry for the layman question, but is this kernel compatible with an ext4 formatted system?
[Galaxy Ace II Android Development] ChronoMonochrome:
Yes, it is.
[Galaxy Ace II Android Development] Dr360r:
Thank you. I'll try.

EDIT: Well, though i liked the Philz recovery, i had some problems with radio on 4.2.9. I could no longer call. Reverted to old kernel & everything ok. All of it could be perfectly a signal issue, however... so i'll try again.

OK, it was a tower issue. Now everything works fine with your latest kernel.

I have a question, by the way: can i make and load custom performance settings with this kernel? If i cycle between Performance, Balanced and Powersave the max frequency seems to stay the same (800 MHz).

Another thing: LPM doesn't seem to work. If phone is shut off, as soon as i plug in the charger the phone turns on and system is loaded.
[Galaxy Ace II Android Development] ChuckMichael:
In lastest kernel and CM11 by ChronoMonochrome Wi-Fi Direct works fine! :)

PS. In Vanir too!
[Galaxy Ace II Android Development] Moandco:
Questions concerning installation

Hello guys,

I am new to kernel flashing and I've got a question about formatting to F2FS. At the moment I have a Stock 4.1.2 Android and only a temporarty CWM. In that CWM I have no option to choose between ext4 and F2FS when formatting. So how can I format to F2FS? Can someone help?

Additionally I read that I can install the kernel on ext4. What should I wipe before? And when is the right time so repartitionate the internal storage?

Thanks.
[Galaxy Ace II Android Development] Moandco:
I was unable to find out until now. I used the searches and read a lot but I am a bloody noob. Someone help please.
[Galaxy Ace II Android Development] ChronoMonochrome:
@up, first update to this kernel.
[Galaxy Ace II Android Development] Moandco:
Thanks for your reply. Didn't understand that the kernel has this great automatic installer. The stock roms works great but I can confirm this bug for stock rom:

The greater problem I've got is that I can't boot to recovery anymore. Did I do something wrong?
[Galaxy Ace II Android Development] ChronoMonochrome:
I don't test work of this kernel on JB. Some wifi binaries might need to be rebuilt to get wifi working on stock. I can't say about recovery sicne I never faced this problem on any ROMs I was testing at least a few months ago (CM10.1, Vanir KK44, LP 5.0 && LP 5.1 and lately, MM 6.0).
[Galaxy Ace II Android Development] Moandco:
Have you got a recommendation what to do now? Can it help to flash stock JB rom via Odin and have my recovery working?

I would download ROM Manger by TWRP but I dont' have internet on the phone due to the w-lan bug :(
[Galaxy Ace II Android Development] ChronoMonochrome:
No need to flash the whole JB ROM, just flash an emergence-case odin kernel http://www.xda.mister-freeze.eu/XDA-files/ChronoMonochrome/kernel/odin/4.4.x_ext4/kernel.tar.md5 then restore your stock kernel and /system partition backup (if any).
[Galaxy Ace II Android Development] Moandco:
I downloaded the kernel but Odin says "the MD5 hash value is invalid". I already redownloaded the file. I know I can remove the .md5 but should I do that? Why is the MD5 wrong with this file?

EDIT: I renamed the file without .md5 and Odin failed. I can still go into download mode.
[Galaxy Ace II Android Development] ChronoMonochrome:
Try this one http://www.xda.mister-freeze.eu/XDA-files/ChronoMonochrome/kernel/odin/4.4.x_ext4/kernel.tar.md5.zip , MD5 should be 4a323c5d9dd576a2d09daeeecf79b39a. FTP server has broke uploaded file due to unsupported MIME type of stored file.
[Galaxy Ace II Android Development] Moandco:
It worked! :D I was able to patch your kernel throught the recovery and at the same time installed CyanogenMod by SergeyL.

Thanks for answering that quick. I really learned a lot in the last few days. Now I am going to take a look at that F2FS stuff so prepare for more dumb questions ;)
[Galaxy Ace II Android Development] Moandco:
Has this been fixed with 4.2.9 yet or hasn't it been fixed because I got this problem. Now i have it working with ex4 but F2FS would be nice.
[Galaxy Ace II Android Development] i-cuz:
I'm using 4.2.9 with cpu set to 200/1200 MHz , when I reboot it sets 200/800

Governor is dynamic, set on boot is on

I have slow internet so I can't search the thread, sorry if it's known
[Galaxy Ace II Android Development] borkins:
What ROM/version you use? Do you use CK settings apk?

I can suggest you to use init.d script.

1. Create an empty file in "/system/etc/init.d" with some name ex. : "20set_cpu"

2. Put this code in the file and save it.

#!/system/bin/sh

# Enabling CPU clocks
cd /sys/kernel/liveopp

echo 1 > arm_step00
echo 1 > arm_step10

# Setting CPU range
cd /sys/devices/system/cpu/cpu0/cpufreq

echo 200000 > scaling_min_freq
echo 1200000 > scaling_max_freq

3. Set permissions 0755 0, 0 (root, root) for the file with the file manager you use.

It can work even with the default permissions, but is wise to do it.

4. Reboot and check the freq range.
[Galaxy Ace II Android Development] Culateralligator:
I'm using F2FS Vanir 20160125 with CK r4.2.9 with two Ace 2 I've at home.

One of them has this:

And the other one this:

I thought I made the same steps and installation with both devices (it' seems I didn't).

This sencond phone runs a bit smoother...

While the first device, if I choose Dynamic Governor -instead of Interactive-, is all the time crashing and rebooting.

I have to say I have installed CK for the first time since long time ago, as I was using Ace2Nutzer's.
[Galaxy Ace II Android Development] ChronoMonochrome:
Is this device only crashing? If both devices are running with the same settings and one is crashing, it's likely hardware issue. Make sure you're not using too high CPU frequency or too low CPU voltage.
[Galaxy Ace II Android Development] Culateralligator:
Yes, only first device (8160) is crashing when using Dynamic Governor. Actually, it had Interactive by default and 2nd device (8160P) had Dynamic by default when I installed ROM+kernel.

So I don't know why appear different number of Governors and I/O Schedulers on each device.

Voltages and frequencies are set by default in both phones.

I addition, the phone is crashing has 15 apps more than the other one... But I don't really think that's a problem. With Interactive it never crashes at all.
[Galaxy Ace II Android Development] borkins:
I'm getting reboots on r4.2.9 by the same old problem. :(

The message in logs that is always the same is:

"Unable to handle kernel paging request at virtual address 40008814".

First I thought it's only me, but few pages back [MENTION=2380052]shaqman[/MENTION] shared his logs with the same message.

The same thing happens on r3.0, but maybe the issue is even older.

Edit: Added another log (2016-04-22...)of: Freeze -> SW reboot -> HW reboot

Just tried to watch 2,5 hours video in the browser. :)
[Galaxy Ace II Android Development] shaqman89:
In my case 4.2.8 & 4.2.9 reduces reboots drastically, to the point where I can't reliably reproduce it.

I do admit that it does still happens once in a while (maybe like once in two weeks ), but I haven't got the chance to confirm what's happening with logs.
[Galaxy Ace II Android Development] borkins:
My phone is heavily loaded, with a lot of tasks in the background.

And sometimes LMK kills even the foreground apps to free some space, including the launcher, especially when browsing.

I'm using it almost like a personal computer.

I agree that the reboots are not very often (for me once a week for sure), but the reboots are unpredictable and sometimes may destroy an important work.

When I saw that the problem is identical (compared with an old logs), i decided to provide my logs.
[Galaxy Ace II Android Development] ace2nutzer:
Sounds like OOM. - Did u already tried if it makes any differences if u use the Phone with enabled/disabled zRam ?

Also which Minfree Values are u using ? - (post them in MB)

Which ROM ?

ART or Dalvik ?

F2FS or EXT4 ?

Deep sleep state ?

Also don't forget even such rarely RR can also happen if there is a CPU voltage Problem .. or too high overclocked.

Also i've to mention, even if on this kernel almost all things are completely different, since Chrono did update/implement new things on FS, and Memory Management ...

than the choose of CPU Governor + IO Scheduler makes also an impact of the stability :)

In my Case i had even to remove ONDEMAND Gov .. since it was LESS stable than DYNAMIC one ! - Strange thing .... because the ONDEMAND Governor is extremely an very small and easy gov ..... but u see that :)

Same for I/O Schedulers ... i ended up that only SIOPLUS + DYNAMIC is rock stable.

But even DYNAMIC Gov. is not fail-safe gov ... many times i had stability problems ! - Those was caused by wrong Tunables in the gov. itself !

Some months ago (lets say 1 year ago) i had exactly same rarely RR with exactly same kernel OOPs ...

i can't say now what i did in order to fix it completely .. but for sure at least a few times it was due of Filesystem errors on /data partition. After i formatted it and then restored the cwm backup .. that issue was fixed.

This was at times i was messing around with Dynamic F-SYNC.

In general: it's better to format /data /cache and both sd-cards after EVERY RR ! (even if static F-SYNC is used)

This Method will minimize or even eliminate FS Errors completely.

Note: Not always last_kmsg shows u that File-sytem is corrupted by an error log. very often it simply shows nothing ... but it's broken ... and instead it just shows that very general Error u're facing.

As u can see, too many things can cause an RR ... Not easy to debug. .. but if u try to understand this Post, u may will find the culprit ! ;)
[Galaxy Ace II Android Development] shaqman89:
[MENTION=5151049]borkins[/MENTION]

Speaking of which, try using latest ace2nutzer kernel to see whether it is better. In term of LMK, the default configuration is really good, at least in my case usage.

Combining it with zram value of 150*2, really makes multitasking easier (tried this with maps, Tapatalk, WordPress and UC mini).

If it does solve it, we could almost be sure it's still related to LMK driver, but if not, it might be cause of a corrupted partition like [MENTION=5840412]ace2nutzer[/MENTION] says.
[Galaxy Ace II Android Development] borkins:
Here is my configuration:

- CM11: 20160313

- Kernel: Chrono's r4.2.9

- VM: Dalvik

- FS: ext4

- CK app - only stable settings

- zram: default by CK init.d script

- Deep Sleep: 3 (default)

- OOM: Agressive - minfree (8, 16, 32, 64, 96, 128 MB) - actually no big difference of what i've tried.

No matter what, the LMK become a Terminator and kills everything around.

- Scheduler: Fiops (default for CK)

- CPU: 200 - 800 MHz (Dynamic governor), default voltages, disabled all odd freq. steps.

- GPU: 400 - 500 MHz (Using divider of 5 for all freqs)

- DDR: 800 MHz (default)

I tried older than r3.0 kernels, and the same problem is there. So, to track it, we must check older logs to find what implementation causes it.

I doubt that is from the zram implementation, because I don't remember a fully rock 100% stable no rebooting custom kernel since before the CPU OC.

In the most cases, when the RAM is low, then the reboot occurs.

In monday, I'll check, if I have older logs (no internet weekend in my village) :).