[Kernel] ICS (3.1 and 2.6.39 versions) (V25.5 and V1.1)

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guevor

Senior Member
Aug 20, 2010
361
1,104
Valencia
Hello all -
I have been flashing ROMs for a while on my phone and tablet, but I had never tried flashing a new kernel till today. I am so sick of the reboots on my transformer, I had to try something.

Anyway, when I flashed one of the kernels suggested on another forum and I rebooted, the wifi toggle switch can't be selected, and when I try to turn it on it just says turning wifi on, but never does. I have tried wiping, installing a nandroid, even flashing the 9b kernel talked about on here, but nothing seems to bring back my wifi. Any suggestions? I am at a loss and need some help. :-(

edit.... So I flashed a AOKP nandroid (4.0.3) and wifi worked just fine. So I am guessing it is something with Cm9 (4.0.4) I am going to try and restore a cm9 nandroid one more time, and see what happens.
When you restore a nandroid, does it replace the kernel with that which is in the nandroid? I apologize for some of these noob questions.

Nandroid for tf101 does not usually include kernel, at least the versions I've tried. Anyway you can see kernel version in the system information.
 

guevor

Senior Member
Aug 20, 2010
361
1,104
Valencia
this kernel gets better and better.from last night i use v9 and the tablet is so smooth,the screen so responsive,the app drawer in adw ex launcher sooo smooth finally.i cannot believe it.

Sent from my Transformer TF101 using xda premium

Glad to hear it, the truth is that I've worked hard to achieve, but not always achieved.


In fact, today a few hours I have been struggling with some changes and there is no way, if only I knew how to debug when not even start (reboot while loading).

Any ideas?

Anyone know how to start it could perhaps via nvflash to see at least kernel messages from the pc?
 

garryveda

Member
Mar 3, 2012
25
1
Kiev
Hi, people!

Have I to turn "Force GPU rendering" on under develop options with v9 kernel running on revolutionHD?

thanks in advance!
 

hachamacha

Senior Member
Jun 15, 2010
1,368
751
Honor 8
I installed test9b on Revolver and I wasn't having the ubiquitous crashes before or after. It runs fine, allows voltage changes easily, and mine does all available speeds.

I know others have mentioned cpuspy or whatever utility they use to determine that their pads don't use certain frequencies, but mine shows that it uses every frequency up to 1G so they aren't .. gratuitous.

Of course, they don't use >1G except for the chosen overclock, but that only makes sense.

For once I tried the usual raft of benchmarks, though I don't care, on this test9b tf101 at 1.7G and all went pretty well, ~7900 in Antutu, and sorry but I've already forgotten the rest but terrific results if you're interested. I never changed the voltages from default, did no cache clearing , etc.

Thanks.
 

Nebucatnetzer

Senior Member
Feb 4, 2011
5,820
6,598
Glad to hear it, the truth is that I've worked hard to achieve, but not always achieved.


In fact, today a few hours I have been struggling with some changes and there is no way, if only I knew how to debug when not even start (reboot while loading).

Any ideas?

Anyone know how to start it could perhaps via nvflash to see at least kernel messages from the pc?

I don't know a lot about kernels but do you considered asking one of the other devs? For example Blades? I don't know any other Tegra 2 kernel devs because the TF101G is my first device with it but maybe you'll find someone in the LG Optimus 2X forum as far as I know it was the first Tegra 2 device so the devs over there should've quite a lot experience.

---------- Post added at 07:37 PM ---------- Previous post was at 07:33 PM ----------

Hi, people!

Have I to turn "Force GPU rendering" on under develop options with v9 kernel running on revolutionHD?

thanks in advance!

You actually shouldn't have to use this feature when your app devs are good at what they're doing. Because they should've updated their apps to use HW acceleration.

In addition it might cause some problems with some apps. Especially games react sometimes with force closes.

Other than that it just uses a bit more RAM but that isn't really problem so it's up to you if you want to use it, it's not like it would cause some serious problems
and it might even help with some apps or not.
 
Last edited:

osho741

Senior Member
Dec 3, 2008
409
20
Milwaukee
Glad to hear it, the truth is that I've worked hard to achieve, but not always achieved.


In fact, today a few hours I have been struggling with some changes and there is no way, if only I knew how to debug when not even start (reboot while loading).

Any ideas?

Anyone know how to start it could perhaps via nvflash to see at least kernel messages from the pc?

Would a logcat from adb capture it?
 

kay_kiat88

Senior Member
Dec 19, 2010
889
246
@guevor

Just letting u know that I flashed test9 modified by ricardopvz with no problems. storage doesn't fc, microsd is readable and wifi works.

Sent from my Transformer TF101 using xda premium
 

sbiriguda

Senior Member
Feb 3, 2011
307
155
L'Aquila
Would a logcat from adb capture it?
No, the logging service is strictly a userspace program, so if the kernel dies you won't be able to see its panic message(s).
On top of that, the USB port is driven entirely by a kernel driver (OTG) while it's in gadget mode, so when the kernel dies you even lose USB connectivity with your device (from the host's point of view, the TF101 just "vanishes" from the bus as if it was unplugged).

There is a way to capture a panic log by having the kernel write it to a special partition on the SLC flash (CONFIG_APANIC), but all TF101s lack such partition, so it's a no-go either.
 
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Nebucatnetzer

Senior Member
Feb 4, 2011
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Is this the reason why the app bootlog Uptime isn't working on the TF101?

It would normaly write the last kmsg into a textfile after a kernel crash. It works on my GNEX but it never worked on my TF.
 

garryveda

Member
Mar 3, 2012
25
1
Kiev
You actually shouldn't have to use this feature when your app devs are good at what they're doing. Because they should've updated their apps to use HW acceleration.

In addition it might cause some problems with some apps. Especially games react sometimes with force closes.

Other than that it just uses a bit more RAM but that isn't really problem so it's up to you if you want to use it, it's not like it would cause some serious problems
and it might even help with some apps or not.

Thank you for this fine answer. I'm just looking the way to minimize some lags occurred with my gallery and Google play shop when scrolled up and down. Everthing is quite smooth except the lags time by time while scrolling. Whether there is no way to make the scrolling as smooth as apple devices have?
 

Nebucatnetzer

Senior Member
Feb 4, 2011
5,820
6,598
It is possible but there are a lot of factors playing into it.

If HW acceleration isn't helping you then probably overclocking helps. Other than that
I don't know a better way.

You might find this article interesting
https://plus.google.com/105051985738280261832/posts/2FXDCz8x93s

It's from Dianne Hackborn an Android Framework Engineer where she's explaining it a bit.

However we should stop this now because it's way off topic.

---------- Post added at 10:06 PM ---------- Previous post was at 10:02 PM ----------

@guevor

I have now 23h up time an except the fc in the storage settings not a single problem so far.

I wasn't really stress testing it though but I'm going to now.
 

sbiriguda

Senior Member
Feb 3, 2011
307
155
L'Aquila
Is this the reason why the app bootlog Uptime isn't working on the TF101?

It would normaly write the last kmsg into a textfile after a kernel crash. It works on my GNEX but it never worked on my TF.
I don't know said app, but I'm 99.999999999% confident that the missing SLC dump partition is the reason.

I honestly don't know if you can repartition the SLC flash, but since I don't have a nvflash-able TF101 I can't fiddle with it in any way which can hose its recovery partition - besides, we're going quite off-topic :)
 
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Nebucatnetzer

Senior Member
Feb 4, 2011
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Not really if said app would work it would be a lot easier to collect logs for any kernel dev because you don't have to actively guard the device.
So therefore it would be a handy tool for kernel development. ;)

@guevor

It survived 30 cycle of scaling stability test and 20 cycles of classic stability test.

So I would say your kernel works quite well.
 

guevor

Senior Member
Aug 20, 2010
361
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Valencia
I have to revert a lot of the changes to make it boot correctly but now is to late to publish the test10. I'm going to bed and tomorrow will upload a test10 with much less changes that I would liked, but I hope that other day can try they again. At least I'm learning a lot.
 

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  • 141
    Initially the idea of ​​this kernel was to test some things to see if it improved stability. I would have liked to start with the kernel of Blades, but I don't found the source of the ICS version, so I started from the official source of asus.
    With the versions, more people used my kernel, so the initial idea to make a kernel for my personal needs has become more generic, so to some extent, try to apply the suggestions that other do.

    I must make clear that this kernel does not exist without the work of others and thanks to free software. Just trying to be a bit, over a huge pyramid.
    Thank Blades, Roach2010, clemsyn for his work and all who have commented for your help.

    If you want to donate, there is a button on the left and a link below. Do not feel obligated at all and only in gratitude for my work if that has been useful to you.

    Donation Link

    In this post I left the files of old versions.

    Github repository: http://github.com/daliguro/tf101-kernel-test
    117
    [Kernel] ICS

    Changelog:

    Test2 version with 1.64Ghz Max Overclocking. I have increased the voltages (the previous 1.2Ghz was very low). The problem with the frecuency limits was solved by Roach2010. Give thanks to him. No need to have several kernel with different frequencies.

    Test3 Fix bad 3d Clocks on test2. md5 ce39c26f037d9721a5f1071a55a02456

    Test4 Added support to lowering the voltage. Works well with Pimp My Cpu (no displacement). md5 006914bcc531e092bab3e127d6fc7797

    Test5 Increased voltage at higher frequencies (1.5Ghz and above). Some clocks changed (Perhaps best performance). md5 0d0a76d8c04e8c9c19807286666c6cee

    Test6 1.7Ghz Max Frequency, added SIO, CFQ and BFQ i/o schedulers. Boot at 1.2Ghz. I do not recommend work at 1.7Ghz

    Test6b Fixed 1.7Ghz clocks. md5 3025f2dd99e9f5f818606ad03204e6f2

    Test7 - Rebased on V9.2.2.3. md5 47cd318fe6872b665bf96c7d31db4eb0

    Test8 - Fix for stability and 1.7Ghz voltage increased. md5 e8f513de01755cf875ad083a4aa9ec88

    Test9 - Backports from Linux 3.1, added cifs and xpad (xbox) modules. Having introduced many changes, it may be much more problematic than previous or perhaps more stable if all went well. Take care. md5 417f587b0bfba9d7c55f227b10d746ea

    Test9b - Wifi now seems to work on Revolver and CM9. Please test on others and report. md5 8b31d1c03425c3df5efb771ec26f598c

    Test10 - Backlight code changed. More backports from 3.1. Wait for others to report if it works correctly if are not willing to endure problems. md5 06bcf3b654a728039b161ade070c6a98

    Test11 - HAS A BUG. A lot of minor changes, and some cpu errata fix (more details). md5 d3f5ea57e5b57e504de3fd63d94e8f3b

    Test11b - Bugfixed. md5 2dd7130491e750e5230f03e058154047

    Test12 - Added governors wheatley, SavagedZen, lazy, lulzactive and lagfree. It should be more compatible with various roms (please test wifi and BT). md5 9e6a712d5937dbbcc528eb8db50722b9

    Test12b - Changed voltage/frequency tables and added 1640. You need to adapt your undervolting settings. md5 8836aa5ab48cadff9b49d29156597fca

    Test12c - Fixed a problem with undervolting. I had forgotten to fit the new frequency table. md5 6dcf20cbe608365f0bd862c16ad0a654

    Test13 - Another big changes. The most important on the suspend code where reside the principal factor to random reboots. May be .... md5 865aa7db4f8b6625af444adf701841ec

    Test13b - Frequency/voltage tables of test11. Only for people that have more problems overclocking with test13. md5sum 88557afa3c52db356576f0a99f5d8cf4

    Test14 - More backports and fixes. md5 b0780e56ab2b65d311b5a3d16ee53943

    Test15 - Usb working again, sd card and more fixes. md5 f80642e9d3ae405edd0ea4f6e34a1e4a

    Test16 - Changes on timers and other fix to SOD. Compiled with VENO. md5 392b66ea63dca265d391992e8af0c34f

    Test16b - Modified SOD fix to be faster when not docked. Other optimizations. md5 e3f1450caf982af040d278d3c4058ed5

    Test17 - Different SOD fix, updated with 9.2.1.21 asus source and others. md5 7bf83bbf6f7d68de2814d88b5c24ed05

    Test17b - Small modification to try to handle better when can not suspend and when he wakes up alone. md5 73c4e80a29532552807790b330d4a70c

    Test17c - Reduced consumption if you use a microsd all time (like me). Changes in the configuration of bcmdhd. Usb serial changes may affect modems. md5 f9163588e10ba570870a1d83f4a9046d

    Test18 - Several changes on suspend,pm,dc,timer,usb,mmc. Reverted some changes, included 17c ones. Will test one by one to be sure can be re added. md5 76c181b30886aa9ae22f8ba2ff80d5dc

    Test18b - Reverted a change that seems unstable. md5 8a8b989a85b9622f7ea5b8501d6e6b6d

    Test18c - More changes reverted and a new try with suspend and usb. md5 106626e6dee091d3ccc28e58da6adee6

    Test18d - Minor delay change. md5 f08a8bddab9ec8e78618f070af1714c6

    Test18e - Reapply some v18 changes and suspend code. md5 3c2ec029133c274746cbf2a56f1e6c90

    V19 - Eliminated the changes that this time I hope were the bad and re-added the good. md5 66e4f9be8650cb7676c2748578f26c82

    V19.1 - Fixed a bug. md5 aa67a380b3ccc77afd791f267de435ab

    V19.2 - Another attempt to return to stability. md5 34bc9721647c8a316b5c352108ef0a22

    V19.3 - Changed compilation options, suspend code and some modem options. md5 2217da228d9323aae42b835735a7ba4c

    V19.4 (#504) - Fixed a problem that can cause to not deep sleep. md5 bd08cd3cc2a20829d69f00b302e6f870

    V20 (#505) - Try to avoid ram fragmentation and new compilation options for better performance. md5 a2a43d5eac6cca6f1045d90925532a11

    V21 (#527) - Usb problem fixed, iptables problem fixed and i2c changes. md5 0f3e339ff7157850619cea19ec8a772c

    V21.3 (#559) - Fixed some stability problems introduced. md5sum 0758f26e3ef9e56f25a9b2a77098c9c1

    V21.4 (#564) - Minor graphic drivers change. md5sum a6f6a4a9aaaf464c5b02a087b48b0cf7

    V22 (#607) - More graphic drivers changes, ram timings, compiler and optimization options, pci drivers and other bugfixes. md5sum 0635a12362b47a5798fc8f48cd4439c4

    V22.6 (#645) - More performance and several fixes.

    V23 (#689) - Some memory, video drivers and wifi fixes

    I created a new branch based on original 2.6.39 code. Use it on TF101G or if have problems with the 3.1 version.

    V1.1 (#28) - Initial version. CPU and GPU overclocking and other performance changes.

    Current default voltages: 1.7Ghz 1475mv - 1.64Ghz 1450mv - 1.6Ghz 1425mv - 1.5Ghz 1350mv - 1.4Ghz 1275mv - 1.2Ghz 1100mv
    I currently use voltages: 1.6Ghz 1425mv - 1.5Ghz 1350mv - 1.4Ghz 1150mv - 1.2Ghz 1050mv
    103
    [Kernel] ICS

    Downloads

    For a Megatron Version you can use this link (thanks to ricardopvz)

    The New codecs from Nvidia (video decoding) (NOT INCLUDED ON ANY KERNEL)

    Download this to enable io as busy on interactive governor (better video playback)

    3.1 based

    Kernel-ICS-V22-OC1700-fb_607.zip same file as V21.11
    Kernel-ICS-V22-OC1700-fb-AOKP_606.zip
    Kernel-ICS-V22-OC1700-fb-megatron_605.zip

    Kernel-ICS-V22.6-OC1700-fb_645.zip md5sum cf90635049728aef79c4cf72dfc83b8a
    Kernel-ICS-V22.6-OC1700-fb-megatron_645.zip md5sum 4ad30d5b7f031c09ca46a5d676a20c79
    Kernel-ICS-V22.6-OC1700-fb-AOKP_646.zip md5sum d257aed3b8933003b1b7a7310d30db6b

    Kernel-ICS-V23-OC1700-fb_689.zip md5sum db62b36c6fb110902c57f549232888e0
    Kernel-ICS-V23-OC1700-fb-megatron_689.zip md5sum ffaec5a8646c05c5106d4c8f0543a576
    Kernel-ICS-V23-OC1700-fb-AOKP_690.zip md5sum 8d6051faf4059324a91b51031bce8522

    Kernel-ICS-V25.5-OC1700_741.zip md5sum 7b154df80a3e96fe2f425939c3611898

    2.6.39 based

    Kernel-2-ICS-V1.1-OC1700-fb_28.zip md5sum e8d15d5168587dec00e228dc2a72cf2f
    Kernel-2-ICS-V1.1-OC1700-fb-megatron_28.zip md5sum 7c82713293bc7226a301e60d2dea2796
    Kernel-2-ICS-V1.1-OC1700-fb-AOKP_29.zip md5sum 6fd2a8d8db9dade682114e3c18682d87
    19
    Sorry, but I've been sick and I could not use the computer. The truth is that has been a difficult year and seems the doctors did not match with the solution (the problem is aggravated from time to time).
    I will try to rest a few days and hope to return with more energy to continue collaborating.
    18
    I compiled a new version for CM9 with small changes in the configuration. If someone want to test it, please confirm if it works or not.
    I have also compiled another version for JB eos with best compiler options similar to what I use on my other versions (the former was very similar to the configuration used in eos)
    Sorry I can not spend more time at the moment but hopefully I can get in a few days another version for other JB rom.