[KERNEL] [9] A2N Kernel for Galaxy S8/S8+/Note8 Exynos [up to 10h SOT] [High-End] [2022.05.13]
- Thread starter ace2nutzer
- Start date
Report dev charghing current cannot change any solution ? I flashed new kernel
Edit
Sorry dev i forgot flash new kernel hahaha
Edit
Sorry dev i forgot flash new kernel hahaha
Last edited:
You need to wipe the data of the app or remove and reinstall it, its becus the newer version is build with updated tools so thats why this issue exist, but wiping the app data of the app or remove and reinstalling fix the issue.
@ace2nutzer Random reboot again on the latest release.
Installed with new twrp and wiped all cache. Using 50% zram. It happened when phone was in deep sleep.
Installed with new twrp and wiped all cache. Using 50% zram. It happened when phone was in deep sleep.
Soft reboot happend while checking on apps.
Everything default besides zram on 100%
Latest kernel build flashed with latest a2n twrp.
Everything default besides zram on 100%
Latest kernel build flashed with latest a2n twrp.
Was you unmounting some storages like sdcard or USB-flash ?
Or something related to namespaces ?
Weird error never seen before.
Code:
<3>As EXT4-fs error, printing data in hex
<3> [partition info] s_id : sda19, start sector# : 10374144
<3> dump block# : 0, start offset(byte) : 0
<3> length(byte) : 4096, data_to_dump 0xffffffc8562f0000What is sda19 ? check it with "mount" command.
Maybe a broken sdcard or USB-flash ?
Anyway, latest kernel is still unstable, i got also one reboot.
But with different reason compared to your 2 logs.
And therefore uploaded a new test kernel 2021.12.07:
S8
S8+
Disabled RBIN driver. I think it's buggy.
If it works stable without it, then i'll try to fix it, because loosing 228 MB RAM is somehow painful.
Well atleast i didnt get a random reboot yet, besides a soft reboot. So guess some progress is made
Well random reboot and soft reboot is almost the same.
I guess both hard/soft-reboot is caused by the same issue.
I got a few hours ago hard reboot.
According to the stack trace it's related to ion_rbin_heap driver, so i've disabled it for now. As you can see RAM is now less. (-228MB)
I guess both hard/soft-reboot is caused by the same issue.
I got a few hours ago hard reboot.
According to the stack trace it's related to ion_rbin_heap driver, so i've disabled it for now. As you can see RAM is now less. (-228MB)
I see, if it fixed the issue i dont rlly mind becus most ram usage goes to the zram instead.
Well it's not fully lost, it's used by camera, video playback and live stream. Those 228 MB are real RAM uncompressed. Considering zRam on those 228 MB is like a loss of 512 MB.
In those 512 MB fits 2 - 3 apps.
In those 512 MB fits 2 - 3 apps.
@ace2nutzer is it possible that the different bootloader versions and roms in combination with this kernel is a variable what causes this problems?
No... what about latest test v. 07.12 ?
For me so far no problems.
For me so far no problems.
If the problem is solved what causes random reboots, the other kernel optimalisations will be back enabled later right?
Yes, at least i'll try to fix and add it back. It's just for better RAM utilization.
But more RAM = overall improvement.
But more RAM = overall improvement.
There is no way to optimize multitasking without to use swap.
@ace2nutzer i got again a sort of memory corruption after 24h uptime becus chrome and parallel space got in a crash state, maybe some other apps also. After reboot it was solved. Idk if it is usefull for you if i upload logcat/dmesg and kmsg logs in this case after doing a reboot.
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111
I took the test here. The video duration is incorrect and sometimes the audio starts to freeze, it is also not synchronized. -
6New Release is Up !!
Changelog
Kernel V. 2022.05.13
- HMP_CUSTOM: updated driver
- Audio: fixed stuttering - thanks @MUNISH MONGA for report and tests
- DRM switched to L3 - should fix Netflix stream
- Improved stability
A2N Kernel Control V. 4.8
- Debug: added "fix permissions" (useful if you use this app with other kernel manager apps)
- Improved stability
- Bug fixes
A2N Kernel Control V. 4.7
- Improved stability
- Bug fixes
In the end I ended up to remove again the driver for blocking some specific files / apps because it wasn't stable. Also it's quite impossible to successfully blocking all weird kernel manager apps that actually are useless or breaks compatibility with the A2N app and even with other CPU stats apps.
Therefore I've added a new button in debug menu "fix permissions".
Everytime you test some other kernel manager app and want to use A2N app as well but it actually don't work properly, it's likely due to wrong file permissions. To fix it without to reboot, just tap on the new button, that will fix it in a few secs all the needed permissions for A2N app. That way you can use crappy kernel manager apps and still be able to use A2N app lol.
btw: for out of curiousity I tried also the FDE.AI app, after that, the phone performance was like -50% and A2N app stopped working and my app (A1. CPU TOOL) that shows CPU stats, was broken too.
But fortunately after uninstalling the FDE.AI app and rebooting the phone, everything was normal.33
So what now ? First you say it takes longer and now it's fixed ?
Anyway, for me i see an improvement for screen rotation. With latest build delay is approx, 200 ms while on previous build sometimes was fast and sometimes it had a delay of 2000 ms. So it's now 10 times faster.3Yes and no. Probably you get that warning because battery temp was over 45 °C. So with high CPU/GPU temp + charging even with low current, it still could trigger the warning. Anyway it's not a good idea at all to do fast charging + heavy tasks at the same time. High battery temp will hurt your battery, reducing its capacity over time if you do it frequently.3
Normal if you use latest build for now, but it'll be fixed in next build. -
71This high-end-kernel will provide you unique special features never seen before !
Supports all S8 / S8 Plus / Note8 Exynos Variants
This Kernel Aims are to
- reduce the power consumption
- reduce device heat
- improve the performance
- make it more smooth
- reduce RAM usage
- improve RAM management
- extend device features
- and many more ...
A2N Kernel Special Features
- charger control
- battery IDLE and battery care
- stable CPU OC: up to 4x 2,7 GHz - thanks to my custom DVFS driver
- adjustable CPU / GPU / Battery Max Temp
- fixed time to full battery
- flashlight tuning
- wireguard support - always latest version
- Dex with any HDMI adapter - thanks @ Barna Keresztes
- Samsung Dex: WQHD support with every adapter - thanks @ craftingmod
- higher SOT - with new battery up to 10 h, with old battery see screenshots
- Wi-Fi calling & VoLTE works
- S8: RAM upgrade - 3679 @ 3717 MB
- Note8: RAM upgrade - 5339 @ 5376 MB
- unlocked higher CPU Freq steps - thanks @Noxxxious for initial CPU OC
- SELinux in permissive mode - thanks @Noxxxious
- fake enforce for SELinux (you can enable it in a2n demo app)
- DRM - L3 stable streaming
- SafetyNet bypass (you need to enable "MagiskHide" in "Magisk" APK
- Google Play - certified device
- replaced SSWAP with zRam - fast LZ4 compressor
- optional filesystem: NTFS
- kernel modules for CIFS and NFS
- optional device encryption
- HMP driver fix
- extra gamepads drivers: Xbox / Sony PS / Nintendo Wii
- ability to OC CPU only for screen on
A2N Kernel Control
High-End-App: optimize charging; battery; multitasking; speed up to S9 level !
# App Features #
# Power
-- Charger Control
For faster charging. - Range: 100 - 3000 / 3300 / 3500 mA (S8 / Note8 / S8+)
-- Battery Informations
Like accepted charging current, input voltage, battery temperature and battery voltage.
-- Battery Care
E.g. stop charging at 95 % to reduce battery aging. - Range: 50 - 100 %
Battery IDLE feature, useful for DeX or gaming.
Set Max charging temperature. - Range: 30 - 45 °C
-- Battery Service
Shows charge cycles and ability to reset to 0.
Check real battery capacity in % / mAh and ability to reset. (battery gauge recalibration)
-- Disable (Buggy) Moisture Detection
Ability to disable moisture detection, for the case the USB and Jack-port is dry but you get still a moisture warning.
# Screen
-- Input Booster
Adjust touch boost CPU duration in ms, to improve scrolling.
# CPU
-- Overclock Control
BIG CPU: 741 - 2808 MHz* - default: 2314 MHz
LITTLE CPU: 455 - 2002 MHz* - default: 1690 MHz
Set Max Freq for screen OFF.
Ability to disable boost, for powersave.
Governor up_threshold, to adjust balance between performance and powersave.
BIG CPU DVFS Max Temp (thermal throttling)** - Range: 45 - 100 °C
# GPU
-- Overclock Control
260 - 839 MHz* - default: 546 MHz
Ability to disable boost, for powersave.
Governor up_threshold, to adjust balance between performance and powersave.
GPU DVFS Max Temp (thermal throttling)** - Range: 45 - 100 °C
* Max stable Freq depends on the quality of the SoC !
** To avoid too big performance drops from stock thermal throttling driver.
# Performance Profiles
-- Powersave
-- Balanced
-- Performance (Kernel Default)
-- Performance Plus (Gaming / OC) (Adjustable CPU / GPU Freq)
# RAM
-- Memory Management
Swap / zRam* - LZ4 compressed swap block-device in RAM - Choice: 0 - 100 % of RAM size
Adjust Swappiness, page-cluster and read_ahead_kb.
Ability to drop caches / buffers, to free RAM.
* For multitasking, gaming, responsiveness and battery life.
# Network
Load kernel module for network file systems
SMB2/SMB3 / CIFS
NFS v2, v3 & v4
L2TP - used for VPN.
Wireguard - Secure Network Tunnel.
TCP Congestion Control - Choice: cubic, new reno, bic, westwood+, vegas, veno, hybla, etc..
Wi-Fi Band Selection, choice: "2.4 GHz / 5 GHz", "2.4 GHz only" or "5 GHz only".
# Misc
-- Torchlight Tuning
Increase brightness for the highest level in Android quick settings. - Range: 10 - 17 - Default Max is "10"
-- LED-RGB
Set blink ON / OFF delay for notifications / low battery.
Optimize RED, GREEN, BLUE LED - Increases brightness by disabling powersave mode on low lux.
-- Accelerometer Calibration
# File Systems
-- Load kernel module for NTFS.
# Advanced Power Menu
Reboot to:
-- system
-- recovery
-- download
or:
-- shutdown
- Settings --> Phone Info --> Software info --> build number (tap 7 times)
- Tap 2 times the back-key
- Developer settings --> enable "OEM unlock"
- Download TWRP for S8 / S8+ / Note8 accordingly (the .tar version, for ODIN flash over PC)
- Download latest A2N Kernel for S8 / S8+ / Note8 accordingly and put the file in USB-thumb or in micro-sd-card
- Download latest Magisk.apk
- Rename Magisk.apk to Magisk.zip and put the file in USB-thumb or in micro-sd-card
- Power off
- Boot in Download-mode
- Flash the .tar twrp file with ODIN (disable "auto-reboot" and "reset time")
- Reboot directly to TWRP
- wipe ---> format data ---> "yes" (type yes) and ENTER.
- Flash latest A2N Kernel
- Flash Magisk.zip
- Optional but recommended: flash AdAway_hosts_patcher_g95x.zip (battery drain fix for vanced YouTube and vanced YT music)
- Reboot to system and enjoy !
- Note: first boot takes around 15 minutes for proper app optimization !
Update A2N Kernel
- Flash Magisk.zip
- Reboot to system and enjoy !
Big thanks @ Mobile Tech Point for making this awesome video !
Note: the video is no longer up-to-date, but it's still a good starting point.
Current Bugs and Changelog
FAQ
Support me via PayPal
Join Telegram Group
Note: the group is not maintained by the kernel developer.
Disclaimer
I am not responsible for anything that happens after flashing the work provided here.
Sharing is caring, so according to the (much unwelcomed) rule 12 you can use my open source on GitHub without my explicit consent or credits. But this is where the caring stops as I do not allow you to use any of my own provided files (except for unmodified stock files). Section 3 of this rule states that you can try to bypass my explicit consent by releasing it as your own when you succeed to make significant changes to the work, otherwise i'll report you and your thread will be removed.
Credits
Linus Torvalds - Linux kernel
Google - Android kernel patches
Samsung - device kernel source
@corsicanu - TWRP recovery - original thread
@S.AMU for providing FTP-Server
000webhost - Webhosting
@Noxxxious for the nice disclaimer text
XDA members - Reporting bugs
Contributors
ace2nutzer
Source Code: https://github.com/ace2nutzer/Samsung_dreamlte_Kernel31Buglist - Kernel V. 2022.05.13
- None so far
Kernel V. 2022.05.13
- HMP_CUSTOM: updated driver
- Audio: fixed stuttering - thanks @MUNISH MONGA for report and tests
- DRM switched to L3 - should fix Netflix stream
- Improved stability
A2N Kernel Control V. 4.8
- Debug: added "fix permissions" (useful if you use this app with other kernel manager apps)
- Improved stability
- Bug fixes
A2N Kernel Control V. 4.7
- Improved stability
- Bug fixes
Kernel V. 2022.04.26
- USB: fixed MTP/PTP/USB-tethering connections
- USB-OTG: fixed SSD/HDD connection - thanks @PORTER2002 for testing
- HMP_CUSTOM: updated driver - reduced delay on task migration - fixed background tasks that was sometimes going back to BIG CPU !
- Disabled stacktrace
- Changed dexopt to "speed" - for quick app launch
Kernel V. 2022.04.20
- Improved stability
- Improved memory management
- Improved multitasking
- Fixed BT issues
- Fixed MTP Android version
- Fixed compatibility issues with emulators apps like Windows emulator
- Optimized USB-OTG driver
- USB: improved speed for USB-tethering
- Added support for F2FS
- Screen: added HDMI/DEX custom resolution changer (to fix low resolution / refresh rate)
- Misc: fixed MTP driver version Android
- Screen: moved input booster to CPU
- Source update
- Reduced startup time
- Improved stability
- Fixed bugs
- Stability fix
- Improved memory management
- Improved multitasking
- CPU/GPU: updated DVFS driver - allowed again up to 100 °C
- Compiled with -O3 - for higher speed
- Enabled CONFIG_SYSVIPC - required for some emulator apps
- DEX: allowed all resolutions (presets) as well for HDMI 1.4b (experimental)
- USB-OTG: enabled support for HID, PRINTER & MASS_STORAGE (experimental)
- Added better support for secure folder in kernel - not tested yet
(to enable it on custom ROMs with secure folder support, after you flashed this kernel and Magisk, write this simple cmd to your init.d script: "start secure_storage", save and reboot.)
- CPU/GPU: DVFS max allowed 100 °C
- Stability fix (kernel & app)
- MISC: added MTP version changer
- Improved performance (kernel & app)
- Know issues: MTP version changer is broken in kernel and will be fixed soon.
17FAQ
Q: With which ROMs this Kernel is 100 % Compatible ?
A: Currently only with Android 9 custom ROMs, but Samsung stock ROM is recommended.
Q: Is this Kernel 100 % Safe ?
A: Yes.
Q: Will this Kernel Overheat the Phone if I use Highest Settings ?
A: No, you can't do anything wrong. Your phone has hard- and software overheat protection.
Q: How to Revert all Changes Made by this Kernel ?
A: Flash latest 3-parted stock ROM with ODIN or flash the Samsung kernel from my download site.
Q: How to bypass SafetyNet ?
A: Anable MagiskHide in Magisk app.
Q: How i can Tune this Kernel ??
A: Everytime you install or update this kernel you will face an red (demo) app "A2N Kernel Control..." open this app, and it'll redirect you to Google Play to get the full version (blue app).
Q: Can i use and Tune your Kernel with other Kernel Manager Apps ?
A: Yes, but you need first to unlock kernel with the A2N app full version.
Q: I've Installed the Full Version of the App, Will it Change any Kernel Settings by Default if i do not Change them ?
A: No, default app settings = default kernel settings.
Q: I've the Full Version of the A2N Kernel Control App, Do i still need the Demo Version of the App ?
A: Yes, there are some special features in-app-menu like "Fake Enforce" and debugging features for easy bug reports.
Q: How to Charge from 10 % to 100 % In just 1 h ?
A: E.g. set "AC Current Max" and "Maximum Charging Temperature" to the Max.
Q: How to get Max Speed for e.g. Highest FPS in Games ?
A: Set BIG / LITTLE CPU and GPU Freq to the Max, but avoid to use "unsafe" Freq's.
Then set CPU / GPU --> DVFS --> "Maximum Temperature" to the Max.
Now you can even cook an egg on your phone !
Q: Will my Custom A2N Settings Survive if i install Stock Kernel and then going back to A2N Kernel ?
A: Yes, as long as you don't uninstall it.
Q: Can i use your Kernel Control App with other Custom Kernels ?
A: No, it's not universal kernel manager app.
Q: My A2N App is Crashing after an Update, how to fix it ?
A: Re-install it. If it doesn't help, wipe dalvik-cache in recovery.
Q: My A2N App shows: "Please check your internet connection" - But i've good internet connection. - How to fix it ?
A: Settings --> network settings --> use private DNS server like "dns.adguard.com" - confirmed to work by user @Arnz09 - see his post here.
Otherwise send me a pm with the screenshot and you current location (city)
Q: Why I get lower benchmark scores with this kernel compared with the Samsung kernel ?
A: This kernel uses by default Max CPU/GPU DVFS Temp 65 °C to reduce the device heat. You can buy the full version of the A2N app to set the DVFS Temp up to 100 °C to get higher scores than on stock kernel.
Q: Why the Android Battery setting "fast charging" has no effect on this kernel ? - It charges always with around 1500 mA.
A: Because it would conflict with the built-in charger control.
The default charging current of approx. 1500 mA means no fast charging by default, even if you actually see "fast charging" in the notification section. This is also useful to reduce battery stress and device heat. To charge even with higher speed/current than on stock kernel you need to buy the full version of the A2N app.
Q: Why I've to pay money for just changing kernel settings ?
A: Well quality has its price. Also nobody forces you to use this kernel.
You can flash other custom kernels or flash the Samsung stock kernel from my download site. Good luck !
Q: How to Report Bugs ?
- Please DO NOT report bugs if you are:
--- using "unsafe" Freqs
--- not using the latest release !
--- not using Samsung stock ROM (based stock ROMs are custom ROMs !)
A: Open the red A2N Kernel Control demo app and check in-app-menu (3 dots) then "Debug" and then on "logcat and dmesg" if you faced an app crash or if some features didn't work.
If the phone rebooted randomly, then tap on "last_kmsg". You will find the logs in your internal storage. After that you can attach them here in your bug report, by clicking "Attach files".
ROM:
Kernel version:
A2N app version:
BUG:
How to reproduce:
Same bug with stock kernel ? : YES / NO
Download stock kernel for bug reference: S8 / S8+ / Note8
BUG REPORTS THAT DO NOT FOLLOW THESE RULES WILL BE IGNORED !!!12Hello dear Friends i'm back with a great Changelog ...
Kernel 20191019
- FULL Android 9 Pie Support
- Based on Stock Source Code DSI1
- Ramdisk DSI1
- Compiled with the OFFICIAL ARM/Linaro GCC 8.3
- Optimized Memory Managent
- Improved Performance
- Improved Battery Life
- Reduced Device heat
- More Responsive
- Fixed Laggs (especially for some 2D Games)
- Increased Efficiency
- RAM: 3485 @ 3711 MB
- Unlocked higher CPU/GPU Freq Steps - Thanks @Noxxxious
- SELinux in permissive mode - Thanks @Noxxxious
- Disabled SSWAP
- Added zRam Support with fast LZ4 Compressor
- Added KSM Support - patched for Android by me
- Optimized Input Booster
- Fixed very bad CPU IDLE
- CPU: Interactive @ conservative gov - for higher efficiency
- Added Wireguard Support
- CPU: Cluster 0: Screen ON min_freq 455 @ 715 MHz to Fix Lags - 455 MHz Step is used for Screen OFF
- Compiled with DEFAULT_USE_ENERGY_AWARE / WQ_POWER_EFFICIENT_DEFAULT - for better Battery Lifetime
- Optimized Crypto, NEON SIMD Hardware Acceleration (e.g. faster device encryption due of hardware acceleration)
- Disabled HMP since it serves nothing - Hardware doesn't allow to use real cpu_hotplugging ...
- Added Charger Control 2.0 by me - Allows to configure custom max input current from 100 - 3000 mA in 100 mA Steps separately for AC / USB 2.0 / USB 3.0 / Wireless - that means real Fast Charging even with Screen ON - Allows even to charge at max current possible with 3rd-party Chargers !!
- Added Flashlight Torch Control - You can adjust Brightness of your Torch from 1 - 15 - Default/Stock Kernel is just 5
- SELinux: Removed Audit dependency - Thanks @ kerneltoast && arter97
- Added Support for F2FS
- Accurate remaining time to full charged battery
- init.d Support
- And many more Kernel Tweaks - i can't list them all here ... changelog is already too long isn't it ?! :laugh:
A2N Kernel Control V1.4
- The best Way to manage this Kernel for full functionality (3rd-party Kernel Manager Apps will not work properly with this Kernel)
- Compiled with API 28 Android 9 Pie
- Power: Charger Control - Allows to configure custom max input current from 100 - 3000 mA in 100 mA Steps separately for AC / USB 2.0 / USB 3.0 / Wireless - that means real Fast Charging even with Screen ON - Allows even to charge at max current possible with 3rd-party Chargers !!
- Added switch for "Adaptive Fast Charging" so u can directly toggle AFC in the App.
- Ability to check actual accepted charging current and Input Voltage
- CPU: OC Control: Cluster 0: up to 2002 MHz and Cluster 1: up to 2808 MHz
- CPU Governor tuning: Adjust up_threshold to balance between Battery Lifetime and Performance separately for each Cluster
- GPU: OC Control up to 839 MHz
- Hardcoded Performance Profiles:
- --> Powersave (Underclocked)
- --> Balanced (Kernel Default)
- --> Performance (Overclocked)
- Misc: switch for zRam, KSM
- Misc: Torch Brightness Control - up to 3 times brighter flashlight than with a stock Kernel !!
- Misc: Ability to load kernel Module for CIFS and NFS with just one Tap
- Misc: Accelerometer Calibration
- Debug: u can call this Menu over the App built-in Menu (3 dot) - ability to save logcat and dmesg with one tap to your sdcard ..
If u've any Questions, feel free to ask here.
Enjoy your new A2N Kernel !10New Build is Up !!
Changelog
Kernel 20200519
- Source Update DTA6 -> DTC6
- Charger Control: allowed higher chg_temp - should charger faster, especially for 3000+ mA
- defconfigs: re-enable Gear VR related drivers
--------------------------------------------------------------------------------
Updated also TWRP Kernel.
