yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 10.1 Android Development] pershoot:
Known issue. Its listed in the blog post. Ill look in to it.

Yea, not every device can do greater then 1ghz at what I'm willing to give. But hopefully I can accommodate for most of the odd ended devices. For those that can't when its all done, you can still run the kernel and reap the other benefits of it without OC.
[Galaxy Tab 10.1 Android Development] skrowl:
How do you install the kernel module?
[Galaxy Tab 10.1 Android Development] FricoRico:
I'm using CWM 4.0.0.4 right now. Got it from Rom Manager.

In any case, I take it you need this:

http://cockroach-designs.com/download/config.gz

Looking forward to the new version!

EDIT: Pershoot, does this also mean that, when this kernel is working on the 10.1v it is possible to install 3.1?
[Galaxy Tab 10.1 Android Development] bootsie99:
I was thinking the same thing!
[Galaxy Tab 10.1 Android Development] pershoot:
read the first post.
[Galaxy Tab 10.1 Android Development] pershoot:
v and non v use same kernel. so it should work, yes.

3.1 is another issue for you. your system is half the size of ours. it needs to be partitioned to accomodate. your bootloader is sbk locked. have to speak to my friend to see if it can be overcome.

i need your bootloader version (the one koush built uses a different identifier).

go to recovery, and grep out bootloader in recovery.log. reply back with it here.
[Galaxy Tab 10.1 Android Development] Fyahstarter:
Can this be installed on rooted Tab with locked bootloader?

Hey Pershoot. I'm not that advanced with this type of stuff, however I had someone help me root my Tab yesterday. I'm using a grey 16gb WITHOUT the unlock symbol at bootup. My root was successful and last night I tried your kernel. I did a nanbackup first using CWM and then flashed the kernel using CWM. It seemed to work as I was able to load up setcpu and overclock to 1.4. My question is that I remember distinctly that the person who rooted my phone said that I would not be able to flash kernels cuz my bootloader was locked. Do you have any take on this matter?
[Galaxy Tab 10.1 Android Development] Calkulin:
Giving users the access to control voltages is the best option honestly because not every cpu needs the same voltage to operate, so the only way to get the best battery life is to let the users tune the kernel to their tablets. You have max_microvolts on the kernel, so it's not like they are going to burn up the CPU as they won't be able to go over that but it's more of a undervolting thing, to get the best battery life out of it.
[Galaxy Tab 10.1 Android Development] pershoot:
not for what im trying to achieve (at the end of the day).

i want full manual control over the whole process and don't want that modified in any way.
[Galaxy Tab 10.1 Android Development] drae52:
I've tried to install the video chat skype from this thread:

And it crashes after log in.

That post indicates need:

Video-calling requires Android 2.3 (check the last link on this post for froyo builds) and supports LANDSCAPE ONLY!

You also need a phone with a CPU that supports NEON/VFP instructions, which are used in Skype video libraries.

If Skype crashes when you try to sign in, then your processor is probably not compatible.

I guess I want to know if it's possible.

I figured I'd check here first and see if the GT CPU Supported neon/vfp; if it was in one of the modules that must be loaded etc.

I don't know much about this, but I'd really like to get skype video chat on the tab and the modded apk linked above works on many samsung devices.
[Galaxy Tab 10.1 Android Development] Entropy512:
Happened this morning - Initially just dead wifi, but I had the weird lockscreen behavior happen after my first batch of logs was pulled.

It happened as I was on my way out the door and the files are at home - I will attach them to this post tonight at approx. 5:30-6 PM EST.
[Galaxy Tab 10.1 Android Development] pershoot:
Tegra2 does not support neon. Only up to vfpv3-d16
[Galaxy Tab 10.1 Android Development] pershoot:
Entropy, Flash 727 (posted this morning (not your custom build)), ensure you are on a bone stock system (that means factory reset thru stock recovery), nothing custom/extra.

Then if it happens again, post those logs. Last_kmsg.

Set wifi to never sleep.
[Galaxy Tab 10.1 Android Development] pershoot:
Be aware that your ap is inclined to close the wifi channel if any inactivity is encountered.

Nothing really I can do about that.
[Galaxy Tab 10.1 Android Development] pershoot:
galaxy tab 10.1 - 2.6.36.4 - refreshed - http://droidbasement.con/db-blog
[Galaxy Tab 10.1 Android Development] darktranquility18:
K so the only issue im having with my tab right now is while charging it. I flashed poitees 1.6ghz kernel earlier. Since then i havent been able to charge the tab when its off. The battery icon with the loading thing pops up and does that continuously.

I flashed pershoots kernel to see if anything would change but it get stuck at the battery thing and i have to hold down the power button to reset.

Any suggestions?
[Galaxy Tab 10.1 Android Development] pershoot:
you always get the battery icon when you power it off, if it is plugged in.

to boot it, hold power until it shuts off. when it comes back on, it will boot.

this is normal behavior, carried over from stock.
[Galaxy Tab 10.1 Android Development] darktranquility18:
Dont u get the battery icon with the green charging animation thing?
[Galaxy Tab 10.1 Android Development] darktranquility18:
Hey so here's what it looks like:

Do i have to unplug it every time i wanna boot up?
[Galaxy Tab 10.1 Android Development] pershoot:
yes. if it is full, then it will stay stagnant.
[Galaxy Tab 10.1 Android Development] JoKu:
After my other post I gave it a try and had trouble because even the 7/14 version wasn't working. I tried with and without wiping, with and without rebooting between 7/14 and 7/27 installs and nothing worked. I either got boot loops or an unresponsive screen each time.

Then I read another thread that said 7/13 was actually what you start with, not 7/14. Restored my backup and decided to give it one last try and it worked perfectly; 7/13 then 7/27. So just an FYI to anyone else and just know that this kernel CAN work with TW.
[Galaxy Tab 10.1 Android Development] pershoot:
if you choose this route, i cannot support it at this current time (although it will probably work fine (<=7/13 first, then there on in to the current release (7/27 refresh is current)).

if you run in to issues though, i will ask you to revert to the stock rom to reproduce.
[Galaxy Tab 10.1 Android Development] darktranquility18:
@pershoot PM'd you. Really need help
[Galaxy Tab 10.1 Android Development] Entropy512:
Will do. I'll throw the existing logs up when I get home from the current kernel and then try to catch this again on 727. The wifi issue doesn't bother me too much, it's the lockscreen weirdness that's frustrating, but I'm wondering if it is a variation on your known issue here:

"Known Issues:

Issues from Stock to be resolved:

-Slight delay on wakeup (introduced in HC 3.1) when not plugged in, and/or having to press power up to two times to wakeup (rare (if it is busy doing something))."

Are you saying there are known issues with wifi power management? This wouldn't surprise me - I've seen similar issues (but far less often) on my Infuse which, if I recall correctly, has the same Broadcom chipset (can't check at the moment).

It's not on the AP side - It doesn't just fail to reconnect to my AP, it fails to scan or show any other APs in the area. I'll try and catch a screenshot.

Is the battery-charging-when-powered-off stuff even handled by the kernel? I thought it was in a separate bootloader.

Edit: Attached the logs from yesterday morning. Will update to 727 and wipe tonight.
[Galaxy Tab 10.1 Android Development] pershoot:
it is handled in the kernel.

i wouldnt call it an issue, per se. just the way things work on tegra2 when working with its sleep cycle.

your lockscreen issue i def cannot reproduce. havent heard of this from anyone else either, to my knowledge. really you should flush everything out go to a sane spot (only recourse when things start acting strange on this specific device), flash the 727 from 1230, and then go from there.

the wifi issue does happen on bcm4329, rarely. it could be a combo result of your ap and the module logic itself. it has happened to me on other devices (rarely).
[Galaxy Tab 10.1 Android Development] njfoses:
Are you going on a refresh frenzy again lol or will this be current for a few days?
[Galaxy Tab 10.1 Android Development] pershoot:
current for few days.
[Galaxy Tab 10.1 Android Development] pershoot:
This is running very good. Snappy. Still a bit more to do tho..

Must irk every last drop out of it.. hehe.
[Galaxy Tab 10.1 Android Development] used2hvatreo:
1000 posts, lol nice. Good job pershoot, this thing is awesome
[Galaxy Tab 10.1 Android Development] PhantomHacker:
Gratz on 1k posts. Good work pershoot.
[Galaxy Tab 10.1 Android Development] pershoot:
how's 0727 (refresh), galaxy tab 10.1, workin out?
[Galaxy Tab 10.1 Android Development] Entropy512:
I'll be flashing it tonight as you recommended... Sorry for the delay in testing, the release of Gingerbread for my phone has caused a flurry of development activity that has distracted me. :)
[Galaxy Tab 10.1 Android Development] QwaarJet:
Haven't had any problems, it's running great for me. :D
[Galaxy Tab 10.1 Android Development] Silenus21:
Hey guys, what can you tell me about battery life using this kernel.

How many hours do you get?
[Galaxy Tab 10.1 Android Development] njfoses:
No issues at all.
[Galaxy Tab 10.1 Android Development] GrkEngineer:
Not sure, but I feel like it might be less than an earlier version of the kernel. Could just be in my head due to my recent usage behavior.
[Galaxy Tab 10.1 Android Development] pershoot:
wut?

......
[Galaxy Tab 10.1 Android Development] jimh1999:
Pershoot, any ideas on rooting the LTE version?
[Galaxy Tab 10.1 Android Development] Silenus21:
I think he meant battery life.

What can you say about battery life?

How much you get?

Btw, Thanks for your work.
[Galaxy Tab 10.1 Android Development] sixstringsg:
So can I flash the latest kernel straight from stock 3.1?
[Galaxy Tab 10.1 Android Development] roccos_van:
TWUX support?
[Galaxy Tab 10.1 Android Development] pershoot:
Read the blog post.
[Galaxy Tab 10.1 Android Development] njfoses:
Thanks, flashing shortly.
[Galaxy Tab 10.1 Android Development] Vlad_z:
I've read the blog but can you tell us in lame terms what it will bring good to us? What are those changes? (for educational sake)

Also what is lklm.org you mentioned in your blog post? Is it lkml - Linux kernel mailing list?
[Galaxy Tab 10.1 Android Development] pershoot:
Go to github if you are interested in the actual change descriptions.

Lkml is linux kernel mailing list.
[Galaxy Tab 10.1 Android Development] tabing:
what is tar.gz download, is it necessary or can i just flash the zip file and do nothing with tar.gz?
[Galaxy Tab 10.1 Android Development] pershoot:
this is only if you want the extra modules (for the extra functionality).
[Galaxy Tab 10.1 Android Development] Vlad_z:
OK, I've looked at the code change by Kiryl and signed by you. Correct me if I'm wrong - this release mainly about slack timer system, basically all background processes should wake-up at one time. So this change should be good for battery life in sleep mode.

So, we should test improved battery life. Is that right?
[Galaxy Tab 10.1 Android Development] pershoot:
probably not quantifiable in those terms, but the overall experience of such BG processes in a group may get better.
[Galaxy Tab 10.1 Android Development] pershoot:
refreshing this.

see an issue.
[Galaxy Tab 10.1 Android Development] roccos_van:
Ok saw no twux support thanks anyways and best to you.
[Galaxy Tab 10.1 Android Development] pershoot:
i may refresh one more time.

sorry about this!
[Galaxy Tab 10.1 Android Development] pershoot:
galaxy tab 10.1 - 2.6.36.4 - refreshed (last one) - http://droidbasement.com/db-blog
[Galaxy Tab 10.1 Android Development] Vlad_z:
May I ask you? Why you see a problem with RCU extended quiescent state detection routines?
[Galaxy Tab 10.1 Android Development] pershoot:
That logic (dereferencing illegal..) was causing hardlocking in a particular scenario (ive noticed it before in the past), for some sorted reason, so i yanked both.
[Galaxy Tab 10.1 Android Development] Vlad_z:
Ok, fair enough... and by the way, lack of these extra calls will save some CPU ticks.
[Galaxy Tab 10.1 Android Development] sixstringsg:
So I read the Blog post, but it doesn't specify if I can flash from 3.1 stock to the latest kernel. Any help?
[Galaxy Tab 10.1 Android Development] pershoot:
As long as you have cwm installed, then yes you can.
[Galaxy Tab 10.1 Android Development] pershoot:
all,

if anyone with an LTE version wants me to add support, pls pm me, and we can sort it this week.
[Galaxy Tab 10.1 Android Development] Jnn1:
pershoot, now that your kernel for stock HC is near perfection, any chance you may soon work on a version for TW? (or should we not expect any)? Would be awesome to have your kernel for TW (specifically the newly issued US version, UEKM7)!
[Galaxy Tab 10.1 Android Development] SeanHacker:
totally agree with this bro. would be sweet to run this kernel with km7!!!!
[Galaxy Tab 10.1 Android Development] njfoses:
I would hope once tw is officially released this week we can persuade pershoot into developing for it :D
[Galaxy Tab 10.1 Android Development] tabing:
ok thanks pershoot
[Galaxy Tab 10.1 Android Development] pershoot:
when it gets officially released, then yes.
[Galaxy Tab 10.1 Android Development] Jnn1:
Marvelous, a great pleasure to know! Thanks in advance!
[Galaxy Tab 10.1 Android Development] Entropy512:
If you're rooted and have CWM installed, yes - 3.1 stock ROM is the ONLY configuration that pershoot officially supports right now as far as kernel compatibility goes.
[Galaxy Tab 10.1 Android Development] pershoot:
all,

how's 0731 (final refresh) working out?
[Galaxy Tab 10.1 Android Development] pershoot:
refreshing this one tonight.
[Galaxy Tab 10.1 Android Development] sixstringsg:
Mines working wonderfully. Waking it hasn't had a lot of lag yet.
[Galaxy Tab 10.1 Android Development] pershoot:
johnex,

ive sent you a pm with a test for p4.

pls get back to me when you can.

thx.
[Galaxy Tab 10.1 Android Development] evanrich:
will this work with calkulins rom? http://xdaforums.com/showthread.php?t=1188320
[Galaxy Tab 10.1 Android Development] pershoot:
No. No touchwiz support currently.
[Galaxy Tab 10.1 Android Development] pershoot:
g2/galaxy tab 10.1 - refreshed; 10.1v/10.1-3g support added to galaxy tab 10.1 - http://droidbasement.com/db-blog
[Galaxy Tab 10.1 Android Development] pershoot:
LTE users,

if you want me to add support, please reach out to me.

thx.
[Galaxy Tab 10.1 Android Development] DocRambone:
Lets hope the TW kernel sources is out soon.

Love to see your great work on the better TW roms.
[Galaxy Tab 10.1 Android Development] funky81:
Hi Pershoot, is this compatible with P7500 3G?
[Galaxy Tab 10.1 Android Development] ksacheung:
using SETCPU, but rather laggy if the minimum is set below the maximum Ghz

i.e. 200mhz - 1.4 Ghz (on demand), it will produce some lags

but if min also set at 1.4 Ghz, its smooth, but will use more battery...

anyone experiencing this too?
[Galaxy Tab 10.1 Android Development] pershoot:
Yes. Use the _p4. It should work out for you.
[Galaxy Tab 10.1 Android Development] pershoot:
No not at all. It is as smooth as it has been.

Check your system/environment out.
[Galaxy Tab 10.1 Android Development] pershoot:
Hows 0802 workin out (10.1 wifi)?

All is well for 10.1v/10.1 3g users also?
[Galaxy Tab 10.1 Android Development] evanrich:
So what you're saying, is that setting a lower cpu value makes the tablet slow down? who would've thought?

</sarcasm>

Of course it will get laggy when it slows down...it's called a lower cpu speed for a reason :) Why don't you just raise the minimum speed to like 400-500mhz? Or change the governor to "performance"
[Galaxy Tab 10.1 Android Development] pershoot:
there is no reason to do this.

it will respond and scale upwards as the need demands it.

that is excluding the launcher. it will go half framerate at times, and increasing the speed on the cpu to compensate (to give the illusion of making it faster) is not a fix.

i cannot do anything about the launcher and everything its connected to. that's a known HC issue.
[Galaxy Tab 10.1 Android Development] pershoot:
can someone with a 10.1 3g pls pm me?

i want to revert one change, and want to ensure things will still work for your specific device.

thx.
[Galaxy Tab 10.1 Android Development] stefanamlappi:
Hi @ all:-)

I have the3g version but it doesnt work for me. I have only green and red stripes on the screen:-((((
[Galaxy Tab 10.1 Android Development] pershoot:
PM me and we'll work through support.

if your device has touchwiz on it, this does not support that. only bare 3.1. make sure you are using the _p4 file.

pls pm me at any rate.
[Galaxy Tab 10.1 Android Development] pershoot:
deleted...
[Galaxy Tab 10.1 Android Development] stefanamlappi:
pm is out. How i can erase touchwiz?
[Galaxy Tab 10.1 Android Development] pershoot:
ah, you do have touchwiz. ya this does not support that.

i know of another user (johnex) who does not have touchwiz on his device (with a 7500).

i think youll need to sit tight until i bring support for touchwiz in. should be soon, once i can get my hands on the official rom.
[Galaxy Tab 10.1 Android Development] stefanamlappi:
how i can see i have touchwiz? Idont know its touch wiz:-(
[Galaxy Tab 10.1 Android Development] pershoot:
does your settings page look like this:

http://img827.imageshack.us/img827/6488/5pngsmall.png

?
[Galaxy Tab 10.1 Android Development] stefanamlappi:
No, everything is white with black collums
[Galaxy Tab 10.1 Android Development] pershoot:
this is how it should look:

http://t3.gstatic.com/images?q=tbn:ANd9GcRQ4U3SuBjc5hLrjvSdbf-A_B3PqLg1tRRfW3KRe6jRQ2Ho6UjRpF4tPf

is that how your's looks like?
[Galaxy Tab 10.1 Android Development] stefanamlappi:
no:-( sorry thats original hc than i have touchwiz:-(:-(:-(

Buhuuuu:-(:-(;-(
[Galaxy Tab 10.1 Android Development] pershoot:
deleted.

......
[Galaxy Tab 10.1 Android Development] pershoot:
ya. pls sit tight. once the official rom gets in my hands, ill work on adding support, and then we can work on supporting your class of device.
[Galaxy Tab 10.1 Android Development] stefanamlappi:
do you need a backup from myp7500
[Galaxy Tab 10.1 Android Development] pershoot:
nah, won't help me. i need an offical rom for p7510 (my own device).

thx.
[Galaxy Tab 10.1 Android Development] stefanamlappi:
Ok, so i have to wait:-(
[Galaxy Tab 10.1 Android Development] stefanamlappi:
Any News abaut Kernel vor p7500 w Touchscreen wiz?
[Galaxy Tab 10.1 Android Development] pershoot:
not yet.

ill pm you so we can work on support for your device.
[Galaxy Tab 10.1 Android Development] SeanHacker:
official tw is finally out. I can't wait for you to hook up a kernel for it.
[Galaxy Tab 10.1 Android Development] pershoot:
ill try for this wknd. just bringing in the kernel changes needed to support touchwiz, and tidying things up.
[Galaxy Tab 10.1 Android Development] pershoot:
task650 ive sent u a test kernel for ux, final OTA.
[Galaxy Tab 10.1 Android Development] PhantomHacker:
I can help out testing too, per shoot. If you need any.
[Galaxy Tab 10.1 Android Development] pershoot:
ive sent you pm.
[Galaxy Tab 10.1 Android Development] daddymatt:
Right on pershot! Can't wait! Thanks for your diligence!

Sent from the best phone on the planet (SGS2) running the best ROM on the planet (Cognition S2)!
[Galaxy Tab 10.1 Android Development] SS2006:
will this work flashed over the latest touchwiz rom (Starburst)
[Galaxy Tab 10.1 Android Development] PhantomHacker:
Not yet, pershoot is working on getting the kernel out.
[Galaxy Tab 10.1 Android Development] pershoot:
honestly, this touchwiz is really taking away from the HC experience.

i wont spend too much more time on a kernel for it, as there really is nothing more i can do to rid of it of its lag/aceleration issues. its also riddled with other bugs.

ill see what i can do.
[Galaxy Tab 10.1 Android Development] njfoses:
Hmm i haven't updated to tw yet as i wanted to wait for the dust to settle. Initially everybody loved the update, now i keep seeing more posts asking about how to revert back. I am surprised to hear about the lag though as that seemed to be the one aspect that really improved with tw from reading the posts. I will prob update anyway as i really need the exchange email fixes included with tw so im hoping you don't completely abandon tw in development.

Sent from my god mode evo...
[Galaxy Tab 10.1 Android Development] daddymatt:
I'm not sure if this makes a difference or not but I flashed back to stock and formatted everything before installing TW and it is FAR BETTER that HC stock on my tab. NO lag whatsoever... it kinda shocked me to see that post pershot, HC itself was SO laggy in my case and TW was the answer to the problem. I know your the master around here and I have nothing but the most utmost respect for you and all you do, but maybe you should wipe and instal again? Everybody in my circle is astonished that Sammy actually released something that HELPED the experience for once. I'm a nobody around here and I'm not trying to claim to know anything, personal experience with my tab only is all I have (unlocked, 16GB, retail), but the couple people I have read say that TW is MORE laggy makes me think something may have gone wrong during the instal.

Sent from the best phone on the planet (SGS2) running the best ROM on the planet (Cognition S2)!
[Galaxy Tab 10.1 Android Development] pershoot:
ive wiped and reinstalled 3 times. that included a csc reset through the stock recovery.

it gets more sluggish overall and their fluff causes more of it.

they killed the experience for me, which was not that good before, but the kernel work helped some (more then some), to the overall experience.

it could be our expectations are a lil different.

that or i need some unfurnished kernel patches they require for successful operation. i woudnt discount that, but until then, i dont feel good about supporting this.

ill keep working on it for some time.
[Galaxy Tab 10.1 Android Development] tiny4579:
Touchwiz feels smoother for me than stock, especially with the optimized launcher2.apk. I'm guessing samsung made changes to the kernel as well to keep it smooth. Let's see what comes of the released kernel for touchwiz. I think you're one of the best devs on the Galaxy Tab 10.1 so I trust your judgment.
[Galaxy Tab 10.1 Android Development] Infobits:
Hey pershoot, keep plugging away man! I am sure in time you will figure it all out with the new TW ROM and kernel difference from plain HC versions. I must say though that I echo the same thing that I think the Samsung TW update improved the tab 10.1 I have. It also fixed a bunch of bugs (like the web browsers now decode pages correctly that they did not do before. Much better now). Anyway, I am on full stock TW updated Tab 10.1 Wi-Fi Retail Locked 32GB model. Hope you figure out the new TW kernel and are able to OC it.
[Galaxy Tab 10.1 Android Development] daddymatt:
Just to reiterate, I am running Doc's modified launcher... that REALLY made a huge difference, very snappy. I forgot to mention that. Thanks Pershot, I too trust your judgement ... not to get all 10 year boy on ya here, but your one of my dev heros! ;-)

Sent from the best phone on the planet (SGS2) running the best ROM on the planet (Cognition S2)!
[Galaxy Tab 10.1 Android Development] pershoot:
yea my gripe is with the launcher. sorry, i should have been more clear in what i was referencing. its gotten more piggish for sure.

the rest of the build is ok (aside from the non smoothened out anims (which werent there before).

browser scroll is def more fluid in stock 3.1.

at any rate, ill try to get a kernel out soon'ish and we can go from there.