Develop Bugs

[Q] [HELP] Custom Kernel

Can anyone give a link of a Custom Kernel thread that is working (stable)
I give thanks.

U can make own custom kernel
Sent from my GT-S5360 using XDA

none. all custom kernel in this forum have issue. what features do you want ?

irfanbagus said:
none. all custom kernel in this forum have issue. what features do you want ?
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best features

you can make a kernel with init.d support by yourself. you can get the full instruction in mikstev's post about droidwall.

kurotsugi said:
you can make a kernel with init.d support by yourself. you can get the full instruction in mikstev's post about droidwall.
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cool, imma try it.

all i want is a stable kernel with init.d support..
i know, some of you guys may say that i can make that on my own but seriously, i'm not capable of doing that..

dennisaguilajr said:
best features
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best is very relative. if you need high performance you sacrifice battery life. if you need a lot of features you sacrifice free memory. if you don't know what you want, my advice stick to stock kernel. or just make little modification like kurotsugi says.
@leodasal2
a lot of custom rom have modified boot.img with stock kernel and init.d. you can use that

Best kernel for battery life!!!

Hey im a big newbie, but I was able to port a ROM from Arc to Pro.
Now I want to create a battery saving kernel for our pro!
But... How do I start and how do I make it best battery saving??
Thanks alot mates!!!

arc knight 3.3 very good

lammy29 said:
arc knight 3.3 very good
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thanks for reply. but isnt that for arC? I meant for the xperia pro. Is it possible to port KERNELS??? I was able to port an Arc rom to my Pro but I cant find tutorials on how to port kernels and maybe it is alot harder???

xperiap said:
but I cant find tutorials on how to port kernels
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Have you looked HERE?

XperienceD said:
Have you looked HERE?
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Yes, cant see any tutorials on how to port kernels... I think you too, huh?
I only want arc knight kernel [Xperia Arc / s] for my Pro. Maybe someone can do it??? Or help me do it im really a noob

xperiap said:
Yes, cant see any tutorials on how to port kernels... I think you too, huh?
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I didn't no, but then again I'm not looking to port a kernel, so try asking your question in the section that's there to help, or read the material that's freely available using google (like I just did to see what's available) to help with your quest.

XperienceD said:
I didn't no, but then again I'm not looking to port a kernel, so try asking your question in the section that's there to help, or read the material that's freely available using google (like I just did to see what's available) to help with your quest.
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I cant find any tutorial on how to potr kernels. So Im asking it in a thread.
Sorry if I posted in wrong place, but no subforum for the Pro.

Hi! Developing kernels is way to different than just porting ROMs. Also you don't port kernels you develop them from scratch. There's no way to port a kernel into another device.
Here's a very2 basic tutorial on building kernel for Xperia but you still won't understand it without proper knowledge.
http://developer.sonymobile.com/wp/2011/05/06/how-to-build-a-linux-kernel/
Here's the source code.
http://dl-www.sonymobile.com/cws/download/1/105/457/8/1339505718/4_1_B_0_431_tar.bz2
Take note that source code doesn't contain any modifications compiling that right away would just leave you a replica of stock kernel without overclocking, volting, tweaks etc.
Kernel development is a critical part of android customization and anyone is not recommended to play with it even for average developers. It could harm your device to the point that it would burn out or explode.

xperiap said:
I cant find any tutorial on how to potr kernels. So Im asking it in a thread.
Sorry if I posted in wrong place, but no subforum for the Pro.
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My point was to try asking in the section dedicated to Android development, as you'll probably get better help or pointers than you will by posting it here, and if you've not found anything at all in regards to kernel building/porting then you're obviously not using google correctly.

Riyal said:
Hi! Developing kernels is way to different than just porting ROMs. Also you don't port kernels you develop them from scratch. There's no way to port a kernel into another device.
Here's a very2 basic tutorial on building kernel for Xperia but you still won't understand it without proper knowledge.
http://developer.sonymobile.com/wp/2011/05/06/how-to-build-a-linux-kernel/
Here's the source code.
http://dl-www.sonymobile.com/cws/download/1/105/457/8/1339505718/4_1_B_0_431_tar.bz2
Take note that source code doesn't contain any modifications compiling that right away would just leave you a replica of stock kernel without overclocking, volting, tweaks etc.
Kernel development is a critical part of android customization and anyone is not recommended to play with it even for average developers. It could harm your device to the point that it would burn out or explode.
Click to expand...
Click to collapse
WoW Riyal, who is this guy I see you everwhere, are you the BEST android developper???
Can u PLZZZ make Arc knight kernel for Xperia Pro ??? I have some money to donate if u want, or help me do and answering questions / problems im facing.
PLz reply thanks!

I'm not the best android developer in fact I am not an android developer.
I am a server administrator and a programmer and it's just I am also a linux kernel developer.
It just so happens that I am the only and sole android kernel developer which is this active for Xperia Pro. If you don't trust me feel free to approach any other developers like FXP and cross fingers that he would reply to you.
I'll try to look for any arc night sources if I found one I'll guide you if not then try ask the creator of arcnight for it's sources then I'll help you.

Ok here's a quick tutorial. I am not good at teaching things so I hope you understand that. I would also assume you have at least basic knowledge with linux and compiling stuff. If not then learn it first before proceeding.
1st.
You must have a linux machine. No windows only linux.
2nd.
download arcnight kernel sources here.
https://github.com/Jimbo77/Arc-Night-Kernel--4.1.C.0.7-/zipball/master
3rd.
go to kernel/arch/arm/configs/
You should be able to see lot's of config files there just pick these 2.
ArcKnight_defconfig
semc_iyokan_defconfig
4th.
Now compare both files make sure that everything in semc_iyokan_defconfig should be also in ArcKnight_defconfig
Ex. if a config in arcKnight says
# CONFIG_MACH_SEMC_IYOKAN is not set
while config in semc_iyokan_defconfig says
CONFIG_MACH_SEMC_IYOKAN=y
Then change arcknight's config and match it with iyokan's
5th.
Download eabi here.
https://sourcery.mentor.com/sgpp/lite/arm/portal/[email protected]=lite
6th
follow everything in here.
http://developer.sonymobile.com/wp/2011/05/06/how-to-build-a-linux-kernel/
7th.
in the line
ARCH=arm CROSS_COMPILE=/opt/arm-2010q1/bin/arm-none-eabi- make semc_zeus_defconfig
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on sony's dev page change it instead to
ARCH=arm CROSS_COMPILE=/opt/arm-2010q1/bin/arm-none-eabi- make ArcKnight_defconfig
Click to expand...
Click to collapse
Done.
Note that I am not responsible if you brick your device. You are using a kernel made for Arc/Arc S and also I am not the developer of that kernel to assure you that it doesn't have any changes which would affect any specific device in any way.

I started and understand the setup etc. but not part 6, when I run terminal and type ''cd kernel'' it says
bash: cd: kernel: File or map doesnt exist
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AND Ive downloaded eabi. Its a .bin file [is that ok?] and I cant open it! How can I open it??

over clocking kernel?

Guys I really want a kernel so I can over clock it with set cpu can anyone send me a link to a good kernel?

felix787 said:
Guys I really want a kernel so I can over clock it with set cpu can anyone send me a link to a good kernel?
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https://www.youtube.com/watch?v=JmvCpR45LKA&feature=youtube_gdata_player

dynospectrum said:
https://www.youtube.com/watch?v=JmvCpR45LKA&feature=youtube_gdata_player
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Because the threads that contain the kernels don't start with [KERNEL] and have no information such as as whether or not they can be overclocked, where to download, or how to flash in the OP.
Seriously though, find the threads in either Android Development or Original Android Development (can't make it too easy) that start with [KERNEL] and read the 1st post.

[Q&A] [KERNEL] Xcelerate™ [Synapse][Updated:01/14]

Q&A for [KERNEL] Xcelerate™ [Synapse][Updated:01/14]
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.
Before posting, please use the forum search and read through the discussion thread for [KERNEL] Xcelerate™ [Synapse][Updated:01/14]. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!

kairi_zeroblade said:
You would like to consider rephrasing that as it sounded offensive for me..you could have atleast posted a logcat, kmsg, dmesg i can look at regarding your issue instead of whining here that it ran into issues..why don't you build the kernel without a device??
Do you even have an idea how a Snapdragon 400 works?? binaries controlling cpu activity/frequency?? One guess is your thermal engine that throttles CPU down..
Don't worry I will try to implement a thermal solution for you guys..
/rant off
I hate waking up to this kind of post..
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my bad sry cudnt giff a logcat just a nooob here thanks for the work though kernel is smooth

Haven’t received the Apps...
Thanks Buddy for Kernel,
I have installed the Kernel but not able to view SYNAPSE apps.
Sorry for BAD english...

Anilsalve85 said:
Thanks Buddy for Kernel,
I have installed the Kernel but not able to view SYNAPSE apps.
Sorry for BAD english...
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Download it from playstore!

How its work !
Gh0sT.RPG said:
Download it from playstore!
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Click to collapse
How its work ???
please suggest if any :angel:

Thanks for the continued development of this kernel.
Have successfully installed to Carbon ROM RC5 and trying it out! So far, all seems good.... very good!
Peace.
Edit: Ok, spoke too soon. Wifi seems broke, but this may be kernel compatibility patch from another (well known) thread.
Any logcat I can upload to troubleshoot?
Peace.

Anilsalve85 said:
How its work ???
please suggest if any :angel:
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you better leave it as is if you don't know how to use synapse/trickster, just use default ondemand + cfq should be enough

Nice Answer !!!!!!
dels07 said:
you better leave it as is if you don't know how to use synapse/trickster, just use default ondemand + cfq should be enough
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thanks buddy ...
nice line

Tried the previous one then flashed the new one
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tried on latest TWRP 2.8.4.0 with step:
1. Flash ROM CM11-R15 and PAGapps
2. Reboot
3. Flash the previous one (Armani-prod-bld1.zip)
4. Then flash the latest one (Armani-prod-bld2b-npr.zip)
the kernel still show the previous build with Mon Jan 12

I have a problem with the last update. CPU Max Frequency is fixed at 1593MHz and I can't change it (tried from Synapse and from CM11 settings)

Hi.. i just hoping that you can make this awesome kernel available to flash on stock MIUI v.45 ROM. Thank you in advance
#i'm dying to try out this kernel

Fast and smooth!
I am using this kernel, and the previous release of it, for three days, and everything goes fast and smooth. No lags, no reboots, no heating issues!
Keep on the amazing work!
Edit: I am running CM11 R15. I don't know for real but i think the vibration is stronger with this Kernel.

After running this kernal for 3 days I can say that this kernal provides great balance between battery life and performance great work .

update please
guys rc16 is out with no call screen bug and the bad thing is that the bug is fix is related to stock cm11 kernel so we cant flash a custom kernel on rc16 as people reported that there are random reboots and some other issues so please devs update the kernel to the latest cm build please

how the right step to flash the updated kernel?
it still show build1 after flash the build2 and/or build3.

At the time flashing in Twrp latest version,it is telling no md5 file and after flashing it is bootlooping any one tell suggestion

Thank you dev for your hard work.

IM on crdroid b4...can i flash the build 3 of this kernel? and can you tell me exactly how? or do i just dirty flash it?..thanks in advance!

viggyv said:
IM on crdroid b4...can i flash the build 3 of this kernel? and can you tell me exactly how? or do i just dirty flash it?..thanks in advance!
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Just wipe cache and dalvik cache,
Then flash the kernel thats all,it will work.

BATVIC said:
Just wipe cache and dalvik cache,
Then flash the kernel thats all,it will work.
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Click to collapse
Can you please tell me which version of build 3 u flashed on crDroid b4? I tried "Armani-prod-bld3b-npr.zip" and flashed as u told. Please help
Thank you!

[Q] Implement Recovery in Kernel

Hi all,
I lately tried to build a stock kernel from source. It worked well, but I have 2 questions now.
Thats the first kernel i ever built. So I'm really new to that.
How can implement a recovery to the kernel?
And after flashing my kernel I can't modify files in /system. What do I have to do that I get root access with my kernel?
I hope someone can help me.

May be that thread helps: https://forum.xda-developers.com/showthread.php?t=3301605

Klaus N. said:
May be that thread helps: https://forum.xda-developers.com/showthread.php?t=3301605
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Click to collapse
Thanks. That's a beginnig.
I will try to do something with that.