yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II SGH-I777] UGART3:
No nothing unusual at all usually my "display usage" is actually a bit lower than it usually is which is weird but other than that everything looks normal.
[AT&T Samsung Galaxy S II SGH-I777] smknutson:
I can definitely say that this 2/16B has restored my wifi performance on 2.4 and 5ghz bands. Much longer range with higher quality.

Being said, would a hard freeze requiring a battery pull be a firmware or kernel issue? I just experienced one.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
That's really unusual... I've never seen anything like this, assuming you did start at 100% and work down from there. If you were low (<60%) to begin with, rebooting will often cause the fuel gauge to artificially report low for an hour or two. That's a hardware limitation.

Which firmware are you running?

Potentially kernel, or hardware. Depends on if other stuff was operating (e.g. screen unresponsive but USB working) This was a hard freeze with the screen on? (An SoD is basically a hard freeze with the screen off.)

Also, you should never need a battery pull - holding Power for 10-15 seconds will reset the phone, AND preserve the last_kmsg buffer. :)

Nothing in either 2/16 release should have affected wifi at all... what were you using before switching to 16B?
[AT&T Samsung Galaxy S II SGH-I777] smknutson:
Switched from 02/07 directly to 16B.

It was loading a YouTube flash video-heavy forum page in browser. All buttons were unresponsive, the four touch buttons would slightly dim on touch but have no action. Did not know battery pull would flush it, but now I do. I didn't know that a long power button press would do that, learn something new!
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
Entropy,

This reminds me one thing.

Is smknutson's incident same as what happened in my case and you said video decoder did not like when I had crash with 02/07. Recap of my case: I was looking at reviews and playing a demo video of an app in Amazon App Store (might be a flash video, who knows) and pretty much same happened but in my case I kept on pressing back (touch) key to come out and the phone rebooted.

Luckily I could produce last_kmsg.
[AT&T Samsung Galaxy S II SGH-I777] mrRobinson:
wow. i'm on unnamed. went from siyah .11 to 2/15C and battery seems a bit better. 44% left with 13h 20min on battery. This is avg to slightly above avg for me. My usage is slightly different each day so I can only go by average but it is typical for me to be in the 30's now with 3-5 hours before charging it all night as i go to bed. Usually when i go to bed its in the 20's and the couple days on this both in the 30's.
[AT&T Samsung Galaxy S II SGH-I777] iteam:
Same here!:)
[AT&T Samsung Galaxy S II SGH-I777] DeXel55:
Entropy512, I have been using 02/15/2012 Release A for past three days and had no Crash-to-LPM. Then I flashed 02/16/2012 Release B and it did. I am going to check 02/15/2012 Release A one more time and report tomorrow.

EDIT: Actually I have 2/15 installed according to CPU Spy....... strange giving the fact I remember flashing 16th

EDIT 2: I installed 2/16 B again and it shows like 2/15 in CPU Spy as before, so I assume I have been on 2/16 and that is compilation date.

Entropy, can you confirm that? Thanks in advance.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
I'll need to check... But yeah, sometimes compilation date can lag a bit, some of my older releases will have a compile data 3-4 days prior to release (obviously not ones that had a release the previous day though). However that looks a bit early for 2/16B... Lemme look into this. (Edit: That's correct for my 2/16B release ZIP, even though it looks wrong to me...) What does CPUSpy say for 2/15-A?
[AT&T Samsung Galaxy S II SGH-I777] NJGSII:
I'm on 2/16 A and that's what it says for me when I go into CPU Spy.

So far no problems with it.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Hmmm... Something is weird here... 2/16 A and B are reporting the same build time?

15-B reports 19:22... Checking 15C now.

Edit: OK, WTF? Somehow my ZIPs for 16A and B are the same as 15C...

Edit2: OK I think I know what I ****ed up... When copying the zImage into my flashzip template, I copied to the wrong place. Epicfail on my part...
[AT&T Samsung Galaxy S II SGH-I777] DeXel55:
It is Feb 15 18:37:04 EST 2012 for 15 A

I will be testing kernels between 15A and 16B for the next week, to see where the problem starts.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
No point for anything beyond 15C currently, this will change soon though. A mistake on my part in the release process caused 15C, 16A, and 16B to contain the same zImage I think (confirming now...)

CONFIRMED - Currently, 16A and B are identical to 15C. I'll work on fixing this.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Uploaded 18A and B - These are what 16A and B SHOULD have been - 16A and B turned out to be identical to 15C. Sorry.

I hate making CWM-flashable ZIPs!!!!

Going to hold off on later patches until more info on crash-to-LPM for those who had it. Looks like it's somewhere in 15A/B/C...
[AT&T Samsung Galaxy S II SGH-I777] LamboDroid19:
Hey Entropy, I have recently noticed strange touchkey issues. I have my touchkeys set to always off, yet sometimes they still come on. I just toggle the setting to always on then back to always off to fix it. I can't reproduce it. It just happens randomly. Will try to get a logcat if it happens again. Still on 02/07 kernel by the way.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Probably more of BLN sucking... what is needed more is a dmesg not a logcat, but my guess is that this is related to the touchkey lights sometimes getting shut off by BLN for some people.

I'm so damn tempted to just yank it given how many annoying glitches it has. Right now the stability issues some are having take top priority.
[AT&T Samsung Galaxy S II SGH-I777] torred:
Hey Entropy

I've been jumping between ROMs and now I'm going back to unnamed 1.3.2

Which ver kernel is stable/good to flash with it?

Thanks.
[AT&T Samsung Galaxy S II SGH-I777] naturallyfrozen:
Am looking forward to Entropy's ROM. I need that new-new

NoSig
[AT&T Samsung Galaxy S II SGH-I777] garyd9:
Check your PM's in a few minutes for something that might make it easier...
[AT&T Samsung Galaxy S II SGH-I777] :
I dont think I've ever been this excited for a rom, ever.

I was hoping I'd have all weekend to play around with it and tweak the visualizations.

-Red5
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
I spent time trying to fix my CM7 build tree... I broke it by trying to build CM9 for my Tab. Now I have two separate trees. (Getting oprofile to work on CM7 should be a LOT easier than on a Touchwiz firmware, and I want to figure out which interrupt handler is eating so much CPU on suspend/resume...)

Maybe tomorrow - I want to document all of my steps at least at a high level, which makes it a bit of a longer process than just throwing a ZIP up of what I have.
[AT&T Samsung Galaxy S II SGH-I777] axis01:
So what are YOU running on your GSII? I always thought it would be cool to see what the actual developers are using since they aren't always running their own roms.
[AT&T Samsung Galaxy S II SGH-I777] Haas360:
Dude... You didn't hear? He still uses the pink flip razor. DUHHH :)
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
I've made that pretty clear over the past few pages... self-deodexed/debloated XWKL1 + JKay 13.5
[AT&T Samsung Galaxy S II SGH-I777] axis01:
Knew you were running XWKL1. Didn't know if you hellraised any particular rom though.
[AT&T Samsung Galaxy S II SGH-I777] shoman94:
It happens on siyah as well. I did notice I've thing though. I have bln app disabled.... Receive an email weeks no lights... Good right? Well when I wake it... No lights...I have to cycle it to get them on...... Not the case when I receive an SMS. What differs here? I know services.jar was modded for text but nothing else needed modding for bln to work.
[AT&T Samsung Galaxy S II SGH-I777] clumsywob:
Don't know if this is related, but after running the latest patch, swype no longer works. If I try to swype something, I get "Please try again"
[AT&T Samsung Galaxy S II SGH-I777] LiLChris06:
I think your Swype is expired or something to that extent, I would try reinstalling it.

That happened to me when messing with some files and then I got a popup saying its expired so I had to replace the apk/lib files.
[AT&T Samsung Galaxy S II SGH-I777] clumsywob:
I just upgraded it to the latest version last week. This just started happening after I installed the latest patch
[AT&T Samsung Galaxy S II SGH-I777] CyberpunkDad:
Hey Entropy - always enjoyed your kernels always wanted to ask why you don't do an CM7 compatible kernels? Would absolutely love to run your stuff on CM7.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Because it presents a testing nightmare, and the CM team prefers not to have people providing alternate kernels, as it makes THEIR testing task tough. Unlike many other kernel developers, I respect this wish.

I admit - the current situation is an oddball corner case, with the CM team being focused on CM9 on the I9100 until it gets kernel source, leading to CM7 being unmaintained/poorly maintained at the moment especially kernel-wise. If I get time I'll look into coordinating with atinm to try and maybe bring some more patches over to the CM7 kernel. (Back when he was maintaining it, I shuffled patches his way pretty often.) Considering that right now I'm battling stability problems, it would be a VERY bad idea to start piping over patches right now. I kind of feel guilty I haven't coordinated with them as much as I could have. I ran CM7 quite a bit on the Infuse, but with the I777 I've just been too busy maintaining this kernel.

Speaking of that - those that had stability issues on 2/7, especially crash-to-LPM, how are current kernels working? I know one person reported 2/15-A was stable and 15-C was not - what about 15-B? Is there anyone who had stability issues with 7 but not with 15C and later?
[AT&T Samsung Galaxy S II SGH-I777] DeXel55:
I had 15A crashed once (I believe on Saturday), but I think it's enough to consider it non-stable. So I returned back to 12/8/11 - totally stable.

12/21/11 seems stable, used only during one charge.

01/02/12 running now, will report next time (next 2-3 days?)

I will try to discharge my phone enough to charge it twice a day but it is hard with my current use....

Entropy, do 15B and 15C contain patches implemented in 15A? If so, I can know that I don't actually waste time going back to latest i777 source based kernel (12/8) up to 15A figuring where did it start.

Also, stability issues started prior to 2/7. Crashes definitely happened on 1/30 and I will tell more precisely after I get to 1/29/2012

EDIT: I have to flash different ROM at some point and try 2/15 A/B/C to exclude ROM as a problem. It either going to be Shi1tROM (if available by that time) or some XWLA4 based one.
[AT&T Samsung Galaxy S II SGH-I777] NJGSII:
Ran 02/15/2012- C and had no stabilty issues or crashes to LPM.

Edit: Just flashed 2/18- B now.

will report if I have any issues.
[AT&T Samsung Galaxy S II SGH-I777] desiromeo719:
Never had any stability issues on 2/7 and went straight to the latest 2/18 b and its running smoother then ever...thanks.

Thought this update might help me with my overclocking problems but still no go....cant even overclock my device to 1400 on any rom...phone just locks up..
[AT&T Samsung Galaxy S II SGH-I777] gregeberts:
DD_02182012_B.zip

I just flashed DD_02182012_B.zip using mobile odin pro and now my wifi doesn't work. It seems that the mobile network isn't working either. Does anyone know what may be the problem?
[AT&T Samsung Galaxy S II SGH-I777] trell959:
Don't flash it using mobile Odin.
[AT&T Samsung Galaxy S II SGH-I777] gregeberts:
OK, do you have any ideas on how I should go about fixing it? I would really appreciate it.
[AT&T Samsung Galaxy S II SGH-I777] :
Try flashing in CWM.
[AT&T Samsung Galaxy S II SGH-I777] gregeberts:
Just flashed it in CWM, Thanks! My mobile data works now, and I can make phone calls, but the wifi still doesn't work.. Any more ideas?
[AT&T Samsung Galaxy S II SGH-I777] Alucardis666:
Have you tried Siyah kernel?
[AT&T Samsung Galaxy S II SGH-I777] gregeberts:
I haven't yet, but I am thinking about it. How does it compare to Entropy's kernel? I just really want my wifi to work..
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
A small number of people reported some SoDs with 1/30 but not many - that's why 2/15-A reverts all but critical fixes from 1/30 and 2/7.

1/29 has a major architectural change, but I've only seen people report that causing video decoding issues and not stability ones.

No clue... What were you running beforehand? This kernel usually fixes wifi for those running newer bases, however if you happened to also revert your base firmware from UCKK6 back to UCKH7 or something similar to that without wiping, you will lose wifi until you wipe.
[AT&T Samsung Galaxy S II SGH-I777] alacrify:
I've been running 15-C since the 15th/16th with no issues until this morning - screen locked up (could power button->lock screen->swipe it open, but then it was stuck on the open app, and buttons didn't work). Rebooted, fine again - and I haven't rebooted since I loaded the kernel so I don't think that's significant per se. If you want me to try 2-18 A/B or other, let me know - UnNamed 2.2.1.
[AT&T Samsung Galaxy S II SGH-I777] stalked_r/t:
Are the daily patches kk6 still? I was reading up on ICScrewD and see that he says it's built on the XWKL1. he later recommends using your daily kernel since Siyah seems to put it into boot loops. that kind of threw me off a little. Or is my understanding still so light that I'm an idiot? lol
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
That sounds like an app or system problem, not a kernel problem if the lock screen is still working. All other problems people reported were crash-to-LPM, SoDs, or spontaneous reboots. These are undoubtably kernel-involved, but if an app is frozen but the lockscreen still works, that's just a dead app.

Right now, this kernel should work with any I777 or I9100 base.
[AT&T Samsung Galaxy S II SGH-I777] Alucardis666:
More options in Voltage Control with Siyah and WiFi works. some benchmarks may score higher on it as well.

Try it out and see for yourself.
[AT&T Samsung Galaxy S II SGH-I777] Karashta:
I personally love entropy's kernel more than siyah. Until the recent patches tracking down a few bugs, entropy's kernel is normally solid as a rock whereas I find siyah to be buggier. Just my two cents
[AT&T Samsung Galaxy S II SGH-I777] autonomous-inc:
+1
[AT&T Samsung Galaxy S II SGH-I777] DefTaker:
You can use Entropy's DD kernel with ICScrewd. You can use Siyah's 2.6.12 (<-- I believe that is still the latest...haven't checked in a while.)

I'd highly recommend using the Kernel Cleaning Script that jivy put together if you want to flash from Siyah > Entropy. (If you're going from the included Siyah kernel (2.6.7???) to the latest - no need to use the kernel cleaning script.)

However, I did have a "major system meltdown" when I was running ICScrewd 2.0.1 with Siyah 2.6.12 AND init.doh 3.2exp AND I decided to remove the init.doh script (used cwc3's init.doh removal script flashed in CWM), then flashed the Kernel Cleaning script, then flashed Entropy's DD_021612-B kernel and ended up with my phone making it all the way to my lockscreen and then rebooting. (Everything was working fine before I decided to change kernels...)

It would bootloop 2-3 times make it to my lockscreen where I'd enter my pattern, get to media scanning and then my screen either froze and became unresponsive (<-- only thing I could do here was hold the power button for 10 seconds to reboot the phone again) or the phone would slow down and touch become really WONKY. <-- If I turned the screen off, anything would turn it back on...touching the capacitative buttons, the volume rocker, the screen itself.

Also - my microSDHC card got corrupted. I had to reformat the card (did it thru the phone and it seems okay now.)

Ultimately, I had to do a data wipe/factory reset and reinstall the ROM from scratch but it seems fine now. Yes, I'm still on ICScrewd 2.0.1 and I am running Entropy's DD_0218-Part B kernel. Seems more stable than Siyah's kernel (although my lockscreen takes an extra .5 - 1 second to wake up) and the battery seems to be better. (Siyah's kernel seems faster...again don't know if it really is but the lockscreen for me anyways was quicker but the battery seemed to drain a tiny bit faster too.)

Your choice but I agree with the previous posts that I think Entropy's kernel is more stable.
[AT&T Samsung Galaxy S II SGH-I777] AndAllThingsWillEnd:
+1 as well.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
.5-1 second reduction in wakeup time says to me you might not have been hitting deep sleep.

(Resume from suspend takes 650 msec.)
[AT&T Samsung Galaxy S II SGH-I777] DefTaker:
Hmm...this would probably explain why I get better battery life off of your kernel vs. Siyah's. Because from deep sleep on your kernel, it does take about 2 seconds to get the lockscreen to show which I know you've commented on numerous occasions as being the correct interval.

Siyah's always woke up quicker and felt more responsive but the battery always seemed to die a few hours quicker. Of course, looking back at CPU Spy, the actual 'Deep Sleep' numbers were similar. IDK why but the actual outcomes between the 2 kernels were different.
[AT&T Samsung Galaxy S II SGH-I777] vladm7:
2 seconds seems too long. Either kernel wakes under 1 sec for me.
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
Entropy, what could cause PowerManagerService wakelock (per BetterBtteryStas) when the screen was off, I saw the sudden drop on the battery meter and noticed this.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
On I9100 derived firmwares, that's just a "lump" of all application wakelocks combined.

On I777 derived firmwares, each app wakelock appears prefixed by [P]_
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
Thank you Sir!
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
Entropy,

It seems even XWKL1 + UCKH7 (combo) is not an exception as far as wifi drain is concerned :o

with this combo, battery drains upto 5% on some wifi's, but it for sure drains only 1 or less than 1% on carrier's 3G/HSPA,etc

Edit: %/Hour
[AT&T Samsung Galaxy S II SGH-I777] dandrumheller:
Glad you posted this - this is what my wife is running (ICScrewD 2.0.1 (XWKL1) / late Jan. DD (i forget which exactly) / UCKH7 modem) and frequently when she has had the device at work and connected to wifi there she comes home with an almost dead battery and massively high AOS use.

I got her to install most of the requisite apps to try to diagnose, but because I often only hear about the problem after the fact, I haven't been able to get good data to post...I'm not sure if the issue is being triggered when she leaves our home wifi network, or something on her work network - she leaves wifi radio on all the time.
[AT&T Samsung Galaxy S II SGH-I777] Entropy512:
Hmm interesting... And it's XWKL1 or UCKH7, you can't have both... Unless you're using some frankenfirmware.

If you're talking about the baseband firmware, that has zero effect on wifi. It's only for the cell radio.

When this happens, it would be interesting to see the Wireshark caps. Note that some apps can still explicitly use more data when on wifi than when not. I know as one example, Skype REALLY misbehaves in situations where multiple devices on the same network behind a NAT firewall are in play. No firmware can protect you against such situations.

As an easier option than Shark - when this is happening, turn the screen on and off a few times and take a dmesg. Look for the following happening repeatedly:

bcm4330: early_suspend processing disabled, suspend_disable_flag is set by system.

Any time you see this, it means that all of the packet filters that SHOULD have been enabled when the screen turned off weren't - this happens all the time on XXKI3, but only right after connecting to a network in XWKL1 and XWLA4 in my experience.
[AT&T Samsung Galaxy S II SGH-I777] rav4kar:
I should have mentioned KL1 Base Firmware + KH7 Modem in first place, this is what I meant it to be in my earlier post.

I will give it a try as you mentioned and see what it really does on wifi, I had one wireshark report earlier when I had KK6 Base (Unnamed v221) + KH7 Modem, it should be somewhere in this thread.

KK6 Base is good on one (1% drain home)wifi and not good on other (5% drain work)wifi.

KL1 Base is good on one (1% drain home)wifi and not good on other (5% drain work)wifi.

so it turns out to be related to somewhere in the network config. of the routers,etc not with the Base Firmware, Or every Firmeware has same or unique issue related to wifi?

But for me KL1 Base Firmware + KH7 Modem has increased throughput on cell network, this combination is best for me sofar. In places where I used to get 3-4Mbps with KK6 Base and Modem get 6+ Mbps with KL1 Base + KH7 Modem.But I did not try KL1 Base + KK6 Modem yet.

So, I am forced to turn off wifi radio in some wifi's that I know will drain battery :D
[AT&T Samsung Galaxy S II SGH-I777] jhermit:
Entropy,

My experience is that on my S2, the ROM and the Kernel really have not had a significant effect on the problem. I am currently running UCKH7 based ROM that seems to do better, but only slightly. I did find out that I have 90 days warranty for refurbished and not 30 like I said, so I am going to try all sorts of crazy things in my search for an answer.

I have stopped going from ROM to ROM for now in order to isolate some variables. My project for this weekend is to convert my router (a Linksys WRT400N) from the Linksys firmware to the DD-WRT open source firmware. I read that this router runs a LOT cleaner with DD-WRT firmware. I will report if this move has any impact on the "idle" battery life.
[AT&T Samsung Galaxy S II SGH-I777] mkosmo:
I don't know if this will be of any use to you, but I just encountered a strange SoD like occurrence on 2/07. I pulled last_kmsg and it was all kinds of garbled. A straight cat of it and tail of it also produces junk on console as well.
[AT&T Samsung Galaxy S II SGH-I777] ryude:
So I know you use BFQ as the default scheduler, but I'm curious why. I just want to know if there's any disadvantage to using SIO over BFQ.
[AT&T Samsung Galaxy S II SGH-I777] khartaras:
Entropy, can I use this kernel on the international SGS2? I see developers on the i9100 side of town using i777 sources (hardcore's Speedmod), but can this particular kernel run on i9100 hardware?
[AT&T Samsung Galaxy S II SGH-I777] Waddle:
No. No kernal will work on a device that it isn't meant for. Youll screw up your phone if you do this.
[AT&T Samsung Galaxy S II SGH-I777] msgfromside3:
Have you read this already?

http://xdaforums.com/showthread.php?t=1496777
[AT&T Samsung Galaxy S II SGH-I777] ryude:
Yes, I've read a looooot of threads about schedulers ;) BUT, each kernel dev uses his own settings and tweaks for governors and schedulers, therefore it's best to ask the dev what is best. CFQ is default, but does that mean the other schedulers exhibit stability problems with this kernel?
[AT&T Samsung Galaxy S II SGH-I777] shoman94:
I believe he defaults to bfq yes?
[AT&T Samsung Galaxy S II SGH-I777] Simba501:
On my last flash, it was CFQ.

Sent from my Galaxy SII
[AT&T Samsung Galaxy S II SGH-I777] ryude:
He hasn't updated his changelog, but it is indeed defaulting to CFQ.
[AT&T Samsung Galaxy S II SGH-I777] shoman94:
Interesting.... it use to be bfq.

I've been defaulting to cfq for a couple of releases of my rom. Best IMO from the testing I did.
[AT&T Samsung Galaxy S II SGH-I777] ryude:
Well it's the best for giving the illusion of performance, it handle multiple tasks very well. Plus, schedulers don't affect battery life so no real con.
[AT&T Samsung Galaxy S II SGH-I777] shoman94:
Well it gave me the best feel and when I tested them using antutu it proved it as well.
[AT&T Samsung Galaxy S II SGH-I777] ryude:
I like it, I'm just wondering what Entropy thinks about the other schedulers.