Database Info

[ KERNEL ] Dhollmen 3.0.101 for STOCK ROM

My Dhollmen kernel.
Galaxy Tab 2 P51xx : STOCK ROM compatible.
Sources in GitHub: https://github.com/Dhollmen/Espresso-Kernel
Credits for Kernel Team, Google, Samsung, and anyone with merit.
Linux kernel 3.0.101 version.
Developed specifically for Stock Rom.
Cpu boot at 1216 MHz.
Gpu boot at 384 MHz.
Undervolt.
Boot with 'pegasusq' as cpufreq governor.
Boot with 'sio' as block scheduler.
CPU overclock selectable up to 1460 MHz.
GPU overclock selectable up to 512 MHz.
Last ducati-m3.bin firmware included.
Without debug code.
SElinux Support.
Activated ZRAM with LZ4 compression
Tweaked Init process.
Android F2 File system (F2FS) support.
Union File system (AUFS) support.
Windows NTFS support.
Windows CIFS support.
Unix/Linux NFS support.
Windows exFAT support.
Apple HSFS and HSFS+ R/W support.
Manages /etc/init.d/ and /etc/sysctl.conf.
Init's improvements built in kernel.
Compiled with Linaro 4.7 toolchain.
I think it does not need further sysctl.conf tweaks.
GENERAL NOTES:
Booting pegasusq because it is very soft with frequency scaling and looks as good compromise between performance and battery saving.
User can insert boot actions by scripts in /etc/init.d. Here, it is important to establish execution's order, starting with numbers script names,
to run always the latter that has the largest number.
With this kernel, the user not need a separate script to run at the end of the boot.
Has been included an interface to the OC of the GPU, using "cat /sys/devices/system/cpu/cpu0/cpufreq/gpu_frequency"' command to view current frequency.
Kernel will stop secundary processor when its performance is not necessary for the functioning of the tablet.
The second processor still remain stopped with low power requirement, even the first reaches 600 MHz.
Reduced the working voltage used by the Core, GPU, and CPU frequencies up to 1216 MHz.
Completely replaced the memcopy & memmove functions code for memory data movement. The new code can be up to 10 times faster.
Releases for GT-P5100 and GT-P5110/3
Releases for Jelly Bean 4.1 and 4.2.
Go to Dowload
CHANGE OC OPTIONS BY HAND:
Code:
# GPUFREQ --> X = 1 (384 MHz) || 0 (307 MHz) || 2 (512 MHz)
echo 'X' > /sys/devices/system/cpu/cpu0/cpufreq/gpu_oc
# CPUFREQ --> X = 1216000 || 1008000 || 1360000 || 1420000 || 1460000
echo 'X' > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
# SCHEDULER --> X = row || cfq || sio
echo 'X' > /sys/block/mmcblk0/queue/scheduler
# GOVERNOR --> X = pegasusq || lulzactive || interactive || hotplug
echo 'X' > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
DISCLAIMER: Everything that occurs following these instructions or as a result of using any of these products will be YOUR SOLE RISK.
XDA:DevDB Information
KERNEL Dhollmen 3.0.101 Stock-Rom, Kernel for the Samsung Galaxy Tab 2
Contributors
tuxafgmur
Kernel Special Features:
Version Information
Status: Testing
Created 2014-06-15
Last Updated 2014-06-15

Hi @tuxafgmur, the version for the 4.1 doesn't work on my GT-P5110. The tab doesn't boot :crying:

androzzi said:
Hi @tuxafgmur, the version for the 4.1 doesn't work on my GT-P5110. The tab doesn't boot :crying:
Click to expand...
Click to collapse
I can't test by myself and your informations is not sufficient to diag.
Can you install my Stock Rom?

tuxafgmur said:
I can't test by myself and your informations is not sufficient to diag.
Can you install my Stock Rom?
Click to expand...
Click to collapse
This rom? http://forum.xda-developers.com/showthread.php?t=2783989
No because I prefer android 4.1.2 . However the tab remains with the sentence: "Samsung Galaxy Tab 2 10.1". I feel the boot sound but the tab doesn't boot and remains the sentence "Samsung Galaxy Tab 2 10.1"

Just want to say this kernel makes my device a proper tab 2 with 4.2.2. No lag just smooth.. thanks OP!

@tuxafgmur, if you want I can test 4.1 kernels for you

@tuxafgmur, send me a link to download by pm when you will do the next version. I will test it.

:
New 2014 07 02 release for Stock 4.2

tuxafgmur said:
:
New 2014 07 02 release for Stock 4.2
Click to expand...
Click to collapse
Hi mate,.. tried to flash this on my stock 4.2.2,.. but flash failed,.. I think its something to do with the assert lines,. do I need to change / modify the Updater Script ?
If so, can you pls explain what is required
cheers, from not so sunny Scotland

dougs99 said:
Hi mate,.. tried to flash this on my stock 4.2.2,.. but flash failed,.. I think its something to do with the assert lines,. do I need to change / modify the Updater Script ?
If so, can you pls explain what is required
cheers, from not so sunny Scotland
Click to expand...
Click to collapse
If your device is GT-P5100 then you must download p5100 file, else (your device is GT-P5110/GT-P5113) you must download P511x file.
I think that's your problem. Please, not change nor remove the assert lines.
Cheers, from very much hot (and sunny) Spain.

tuxafgmur said:
If your device is GT-P5100 then you must download p5100 file, else (your device is GT-P5110/GT-P5113) you must download P511x file.
I think that's your problem. Please, not change nor remove the assert lines.
Cheers, from very much hot (and sunny) Spain.
Click to expand...
Click to collapse
Thanks for the info, will try again !
Edit,.. Thnx Tux,.. all good now now,.. great work, !! I've been running Kitkat,. however I like the stock UI,. and now its OC'd its much smoother etc,..
cheers !

have anyone tried and tested on 4.1.2 ?

Hello,
I need some help please: the device (P5100 in my case) needs to be rooted and a new (modern) recovery installed or it works with stock recovery?
My TAB was previously updated to stock 4.2.2 (which I like it and used it for 5 months btw) without any other modification until now; and with your help, a little boost to it will be more than welcomed...

lord_dizzy said:
Hello,
I need some help please: the device (P5100 in my case) needs to be rooted and a new (modern) recovery installed or it works with stock recovery?
My TAB was previously updated to stock 4.2.2 (which I like it and used it for 5 months btw) without any other modification until now; and with your help, a little boost to it will be more than welcomed...
Click to expand...
Click to collapse
With Standard Samsung Recovery you can't install another kernel (I guess, as I never used it)
http://forum.xda-developers.com/attachment.php?attachmentid=2740427&d=1399933399
There are common root instructions in this forum.

What app can I use to configure this kernel?

androzzi said:
What app can I use to configure this kernel?
Click to expand...
Click to collapse
If you don't like by hand (/etc/init.d) you can use this:
https://play.google.com/store/apps/details?id=com.darekxan.voltagecontrol&hl=en
I like this app.

Thanks, however I'm trying your kernel with zap blaster 2.3 rom and it's fantastic , now I can use 4.2.2 well. Thanks for this fantastic kernel

Nice work indeed, thank you very much for a better kernel.
A little problem (on my P5100 at least): when using videos from youtube, after some suspend/resume/switching tasks, videos would lock up and wont play anymore, just black screen. I think it's because 900mV for 300MHz is not enough for my CPU. Is there a way to change that default boot frequency table to 950mV? I changed it with VoltageControl you mentioned above, and it seems it's working with the new settings, but I don't want to use an application at boot time, I just want to be the default 950mV for 300MHz. Where do I have to look?
sys/devices/system/cpu/cpu0/cpufreq/UV_mV_table*is changed when modifyed with VoltageControl, but reseted always to 900mV after boot.
Thank you again.

I really like this kernel!
Makes my son's Tab2 faster and snappier.
Please dear @tuxafgmur have you considered to update it anymore? :fingers-crossed:
Thanks in advance mate

Segamalaga said:
I really like this kernel!
Makes my son's Tab2 faster and snappier.
Please dear @tuxafgmur have you considered to update it anymore? :fingers-crossed:
Thanks in advance mate
Click to expand...
Click to collapse
Soon, I hope.
I have made many changes to my AOSP version and I intend to incorporate then into Stock version.
:good:

[Q&A] [ KERNEL - october 19 ] Dhollmen 3.0.101 for AOSP

Q&A for [ KERNEL - october 19 ] Dhollmen 3.0.101 for AOSP
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:

Works flawlessly
tuxafgmur said:
:
New Kernel release 2014 10 19 available to download.
Click to expand...
Click to collapse
Thank you, sir! P5113 functioning super fast!!

ZRAM
which is the default size of zram?

I have installed the latest kernel for about 3 to 4 days and compare with the last one kernel (which the date is Sep 18.)
I found that the performance has been slightly increased, however the battery drained faster than before.
For me, I would prefer the old one rather than the newest one.
Please keep in mind and try to fix the battery drain problem
Hope these could help you to improve the kernel !
Work hard and support !

Lollipop
Any plans for a CM12 kernel?

[Completed] F2FS Support

Does this kernel support F2FS please?
(Great work by the way - was using lean kernel on kitkat for the longest time, and it was both super quick and incredibly battery efficient - 0.4% per hour idle usage, that I've never managed to match with anything else on the same device.
Thank you.

XDA Visitor said:
Does this kernel support F2FS please?
(Great work by the way - was using lean kernel on kitkat for the longest time, and it was both super quick and incredibly battery efficient - 0.4% per hour idle usage, that I've never managed to match with anything else on the same device.
Thank you.
Click to expand...
Click to collapse
Do you mean this kernel: Galaxy Nexus Android Development > [KERNEL] Leankernel: Minimalistic Kernel \\ 3.0.93+ \\ 8.1exp2 - 4.3 PGM\\6.9.2013?
It's for the Nexus.
I can't find it neither in the kernel thread, nor in the changelog, nor in the FAQs ... so I guess that it doesn't support F2FS.

Thead closed. Thank you.

[KERNEL][N910U][Lollipop 5.0.1][UBER][24/05/2015] Meisie Kernel 0.92

Meisie Kernel for the Galaxy Note 4 N910U​
Disclaimer:
This can brick devices, damage devices, made only for the N910U, may cause global warming and potential IBS. Flashing this kernel is at your own risk and may make you cry.
Meisie kernel is my first published dev effort, and is just a personal development project. No additional features are planned at this stage, and root is not included.
Features:
Built from stock Samsung Lollipop SEA source
Compiled using optimized toolchains
Permissive SELinux
Interactive governer by default
In early development. Seems stable so far!
For the N910U only
Changelog 24/05/2015:
Merged BOD4 kernel source
Made changes to the Interactive governor's frequency selection
Added FIOPS I/O scheduler
Made FIOPS default
Added A53 + A57 power coefficient adjustment
Added basic voltage control framework
Adjusted voltages on A53 + A57
Download Meisie Kernel 0.92: Mediafire
Changelog 18/05/2015:
Version 0.9
Introduced arbitrary versioning for tracking
Used source BOC4 Boot IMG for update ZIP (NOT BOC4 Kernel, waiting on source still!)
Increased A57 core max to 2.1GHz
Decreased A57 core min to 500MHz
Increased A53 core max to 1.5GHz
Had a Gin
Decreased A53 core min to 200MHz
Added unaligned access ARM speedup to LZO
Added missing 100MHz value for pll_g3d_rate_table
Fixed a few more compile errors
Got a bit better at Gitting?
Adjustments to MakeFile
Fed Meisie dinner
Stopped compiling with Linaro for now
Changed download host to be more Taiwan friendly
Download Meisie Kernel 0.9: Mediafire
Install using TWRP or CWM to flash the ZIP
Credit and thanks to UpInTheAir, Halaszk, Wanam and AndreiLux for their incredible work on the Exynos5433 platform.
Special thanks to Jo for being super patient while I stare at the screen!
Enjoy
NB: Mods, please move this if it's in the wrong forum
XDA:DevDB Information
Meisie Kernel, Kernel for the Samsung Galaxy Note 4
Contributors
sadisticveneer
Source Code: https://github.com/sadven/Meisie-Kernel
Version Information
Status: Testing
Created 2015-05-10
Last Updated 2015-05-23

Post #2 reserve
Sound mod info to come

Ok , Flashing Kernel dude ! Any other tweak? OC ? UV?

Using Dr Ketan L1 for N910U ! Going well after flashing, i also noticed cell very smooth

Cellphone keep sending me an Alert of Security and Reboot Cell to unclear changes ! Why? Is dangerous? I can disable it ? Can you post Stock Kernel for Users please?

truenitos said:
Cellphone keep sending me an Alert of Security and Reboot Cell to unclear changes ! Why? Is dangerous? I can disable it ? Can you post Stock Kernel for Users please?
Click to expand...
Click to collapse
It's normal with custom kernel
Do this to stop warning
Rename
Code:
system/app/SecurityLogAgent/SecurityLogAgent.apk
[COLOR="Red"]to[/COLOR]
system/app/SecurityLogAgent/SecurityLogAgent.apkbak
[COLOR="red"]and Reboot[/COLOR]
OR
Code:
Freeze SecurityLogAgent with titanium

truenitos said:
Cellphone keep sending me an Alert of Security and Reboot Cell to unclear changes ! Why? Is dangerous? I can disable it ? Can you post Stock Kernel for Users please?
Click to expand...
Click to collapse
U have got to disable these..
------
Although I've C model but it always nice to see such development on Exynos variant....
Thanks.

Good work mate. Flashed your test version and no problems so far. Feels good but will need to run a few days to get a proper idea :good:

truenitos said:
Ok , Flashing Kernel dude ! Any other tweak? OC ? UV?
Click to expand...
Click to collapse
No other tweaks at this stage

Hopefully get some audio tweaks on this kernel <3 great job

Make one for n910c

Looking very nice mate, hope to see more tweaks, we have a beast of Exynos and with this new kernel could possibly get the most out of it, is there any key reason on why you compiled it with Linaro and not with Uber?.

Hi guys
you can be this version on the model H to Install??

alex00006 said:
Hi guys
you can be this version on the model H to Install??
Click to expand...
Click to collapse
I really cringe at the thought of even dignifying that with a response. Read the original post to avoid looking like a fool again.

Flashed it earlier today. The Kernel feels really good on Sweet ROM V10. I'm getting good battery on it (left my Note 4 alone for around 8 hours and came back with just 15% battery drain -- and that's with all these email accounts and so forth polling in the background) and it feels smooth the way V11 felt smooth to me.
I like Kernels and ROMs that Devs put together for themselves. They're usually pretty reliable as daily drivers. Great job!

Well , i run dr ketan rom and i leave my cell ag 100% for 5-6 hours and when I wake up is still at 100% ! Im happy with that

johnlegend87 said:
Looking very nice mate, hope to see more tweaks, we have a beast of Exynos and with this new kernel could possibly get the most out of it, is there any key reason on why you compiled it with Linaro and not with Uber?.
Click to expand...
Click to collapse
More familiar with Linaro. I may look at the Uber toolchains at a later date
jpbl1976 said:
Flashed it earlier today. The Kernel feels really good on Sweet ROM V10. I'm getting good battery on it (left my Note 4 alone for around 8 hours and came back with just 15% battery drain -- and that's with all these email accounts and so forth polling in the background) and it feels smooth the way V11 felt smooth to me.
I like Kernels and ROMs that Devs put together for themselves. They're usually pretty reliable as daily drivers. Great job!
Click to expand...
Click to collapse
Thanks, glad to hear it's going well
truenitos said:
Well , i run dr ketan rom and i leave my cell ag 100% for 5-6 hours and when I wake up is still at 100% ! Im happy with that
Click to expand...
Click to collapse
Good numbers there!

Could you help Raymanfx with Cyanogenmod 12.1 for Note 4 Exynos N910C? HE is alone by himself to fix all the bugs with camera, microsd, mic sound etc he needs help to make daily driver cyanogenmod 12.1
http://forum.xda-developers.com/note-4/orig-development/n910c-cyanogenmod-12-sources-t3015717

calj17 said:
Could you help Raymanfx with Cyanogenmod 12.1 for Note 4 Exynos N910C? HE is alone by himself to fix all the bugs with camera, microsd, mic sound etc he needs help to make daily driver cyanogenmod 12.1
http://forum.xda-developers.com/note-4/orig-development/n910c-cyanogenmod-12-sources-t3015717
Click to expand...
Click to collapse
While the Dev's certainly free to do whatever he pleases, I hope he continues refining his U kernel
I think it's in poor taste to hijack someone's thread to ask for unrelated assistance -- DM'ing the Dev would have sufficed. The amount of effort would've been the same. By doing it publicly, you aren't really asking for help; you're asking for attention.
This is similar to that time a few people started spamming the Exynos threads asking for donations to a specific Note 4 CM12 project so that the Dev could buy a Note 4 and develop CM12 for ONE variant -- without ANY assurance whatsoever that it would be released for other variants. As we've all seen, there are enough differences between the variants that successfully developing for one doesn't mean being able to release a build that works with another.
In terms of levels -- this is just one rung above asking whether this kernel works on 910H or 910C. Not good form.

My main attention is the N910U as it's the device I own Time depending, I'm going to investigate sound mods and may offer a couple of versions based off of Linaro and UBER (when im more familiar with it). No ETAs

Galaxy Core LTE (g386f) "Last hope" Kernel - Update 25.01.2016

Kernel compiled with Linaro GCC 4.9.4-2015.06 Toolchain
Update 25.01.2016
overclock reworked - should be more battery friendly (available frequency:
1612000 Hz
1410500 Hz
1209000 Hz
1007500 Hz
806000 Hz
604500 Hz
403000 Hz
201500 Hz
added CPU Governor (lionheart, nightmare)
ntfs read/write support
Unpack and flash with Odin:
boot5.zip
Update 15.10.2015
Changes:
cpu overclocked to 1612 MHz (default clock is 1196 MHz)
added CPU Governor (userspace, lionheart, nightmare)
added I/O Scheduler (sio - now default, deadline)
combined with modded rom
http://forum.xda-developers.com/gal...p-galaxy-core-lte-g386f-stock-modded-t3223353
provides init.d support
Unpack and flash with Odin:
G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip
Added: 20.12.2015
I decide to clean this post a bit. If You need only kernel, simply unpack it from G386FXXUAOA1_G386FPRTAOD1_PRT 4.zip

Hi Agasharr,
Overclock 1.46 GHz working fine with your G386FXXUAOA1_G386FPRTAOD1_PRT.zip !
What's next ?
Thanks !

Hi, in next kernel i'll add:
CPU Governor (userspace, smartassV2)
I/O Scheduler (sio, deadline)
Added:
smartassV2 had some issues (running always at max speed) and was removed
lulzactive seems to have same issue, it's still in kernel but i'll probably remove it

Are you going to try other governor ? ( before I flash your new zip later today )

stefguer said:
Are you going to try other governor ? ( before I flash your new zip later today )
Click to expand...
Click to collapse
Yes, but not within next few days. Any suggestions?

Many governors listed here, but I am not an expert :
http://forum.xda-developers.com/galaxy-s2/general/ref-kernel-governors-modules-o-t1369817

Hi dude i don't understand all. Is G386FXXUAOA1_G386FPRTAOD1_PRT.zip usable for europe users? I'm french

benplay said:
Hi dude i don't understand all. Is G386FXXUAOA1_G386FPRTAOD1_PRT.zip usable for europe users? I'm french
Click to expand...
Click to collapse
I'm not sure it safe to flash boot.img from a different firmware and i advice to prepare own boot.img as described in first post. Maybe stefguer can tell.
stefguer said:
Many governors listed here, but I am not an expert :
http://forum.xda-developers.com/galaxy-s2/general/ref-kernel-governors-modules-o-t1369817
Click to expand...
Click to collapse
Nor am I. But i see no sense in including all of them. Mostly there are based on Ondemand, Conservative or Interactive (as described in link You provided). So it's a matter to choose the best of it's type and tweak the settings to our device.

@Agasharr I agree with you, I ignore which is the best for us. By the way, this list may be outdated since 2012, maybe some new governors exist now ? @benplay G386FXXUAOA1_G386FPRTAOD1_PRT 2.zip flashed OK today with odin 3.10.6 for my French G386F too.

New kernel uploaded, cpu overcloced to 1,612 MHz.
Added nightmare governor.
Phone is stable, but running few benchmarks makes it definitely warm.
Maybe it's time to make http://forum.xda-developers.com/optimus-4x-hd/general/guide-homemade-heatsink-easy-to-make-t2971385
Antutu score rises to ~18700.

As some kind of summary (the left side, in green, my g386f with the latest kernel, the right side is "average" g386f from Antutu database)

Hi Agasharr,
With overclock 1.612 GHz, I get Antutu score 19246 with ondemand governor.
I guess next step is upgrade to Android kitkat, isn't it ?
Thanks !

Hi stefguer.
I wish it could be possible. But seems that no one can hack secure boot of g386f.In fact it's reason I named this kernel "last hope".

Shame for secure boot. What is your next upgrade then ?

I've some ideas if they work I'll let You know. But don't expect anything soon. Especially with such enthusiastic feedback I'm getting now
btw. inspired by the http://forum.xda-developers.com/optimus-4x-hd/general/guide-homemade-heatsink-easy-to-make-t2971385
I decided to make something with this additional heat from overclocking, i used termopad to transfer heat to more areas, 1 mm thick is max that can fit, if someone would like to try something similar I advice 0,5 mm

You gave me hope one more time in the Galaxy Core LTE !
However I have some questions... I'm not pretty good about android and the developpement of it and after and afeter reading many tutoriels I don't succed in getting mu boot.img : so how do you made ?
Hoping one day my phone will be with Cyanogen ^^

Hi, You want to flash kernel?
If so download G386FXXUAOA1_G386FPRTAOD1_PRT 3.zip
from the first post, unpack and flash it with odin (tool to flash samsung's firmwares)
If You want to prepare own boot.img just to be sure it's safe. You need to download samsung firmware (same version that is in your G386F), and follow the procedure described in the opening post.

Update 15.10.2015
combined with modded rom
http://forum.xda-developers.com/gal...p-galaxy-core-lte-g386f-stock-modded-t3223353
provides init.d support
download in the first post

Agasharr said:
Hi, You want to flash kernel?
If so download G386FXXUAOA1_G386FPRTAOD1_PRT 3.zip
from the first post, unpack and flash it with odin (tool to flash samsung's firmwares)
If You want to prepare own boot.img just to be sure it's safe. You need to download samsung firmware (same version that is in your G386F), and follow the procedure described in the opening post.
Click to expand...
Click to collapse
I will try
Thanks a lot for your job for this device :good:

Nice ! Well, i think i won't try your kernel since my battery is not really in a good state and overclocking would make it worst, but do you think you could add OTG support in the kernel ? It seems the material and rom are OTG ready ('drivers' etc) but the kernel isn't