yashsingh1/xdaforums huggingface dataset:
[Xperia Arc Android Development] Qwerty123 \m/:
I flashed clean .62

Flashed DOOMKernel

It booted :O

EDIT: So it works on stock firmwares

I tried flashing SE ARC TWEAKED

got bootloop :/
[Xperia Arc Android Development] DooMLoRD:
further testing results

restored an older GB backup

flashed v21 kernel (#3021)... it booted up fine

then flashed v22 kernel... it started to bootloop

device boots (can see logo) then recovery triggers are activated (LED/vibration) then device goes to a blank screen and then reboots...

which is really weird :(

i have to go out at the moment will do some more testing logcat/dmesg/last_kmsg to check whats going on

so it worked on fresh clean .62 firmware but failed on older backups...
[Xperia Arc Android Development] DooMLoRD:
ok so i checked the last_kmsg:

Kernel panic - not syncing: Fatal exception in interrupt
[<80037b90>] (unwind_backtrace+0x0/0xcc) from [<804aa804>] (panic+0x54/0x11c)
[<804aa804>] (panic+0x54/0x11c) from [<80035e04>] (die+0x168/0x194)
[<80035e04>] (die+0x168/0x194) from [<804a9fd8>] (__do_kernel_fault.part.2+0x54/0x64)
[<804a9fd8>] (__do_kernel_fault.part.2+0x54/0x64) from [<80038de4>] (do_page_fault+0x1d4/0x1e8)
[<80038de4>] (do_page_fault+0x1d4/0x1e8) from [<8003125c>] (do_DataAbort+0x34/0x98)
[<8003125c>] (do_DataAbort+0x34/0x98) from [<8003196c>] (__dabt_svc+0x4c/0x60)
Exception stack(0x8117fc68 to 0x8117fcb0)
fc60: ce6f19e0 ffffffff 8117fcd8 ffffffff ce6f19e0 ce6f19e0
fc80: 8117e000 8117e000 7f001544 8117fcd8 806b0120 8117fcc4 8117fcc8 8117fcb0
fca0: 800ab9bc 7f001558 60000013 ffffffff
[<8003196c>] (__dabt_svc+0x4c/0x60) from [<7f001558>] (msmsdcc_check_status+0x14/0xb0 [sdio])
unwind: Index not found 7f001558
Rebooting in 1 seconds..

the third last line gave me a clue as to what might be going worng:

[<8003196c>] (__dabt_svc+0x4c/0x60) from [<7f001558>] (msmsdcc_check_status+0x14/0xb0 [sdio])

so basically the sdio module is crashing...

the modules in the file i provided earlier (v15 onwards) are causing the issue... because when i flash back to stock kernel modules (even though i am on my kernel) the device boots...

this was the reason the device booted on clean .62 firmware (without flashing modules via recovery) and didnt boot on some ROMs/older backups...

so temporary workaround is to flash modules for stock kernel... this will break wifi but it should atleast get the device booting...

i will soon post proper kernel modules which work with kernel v22

thank you all who reported this issue... the bug has been found and will soon be fixed!
[Xperia Arc Android Development] DooMLoRD:
done booting bug is now fixed with updated modules! :)

MODULES for DooMKernel (v22)
[Xperia Arc Android Development] cx-11:
Download and testing in the next 20 min. Thx for fix I hope

;-)
[Xperia Arc Android Development] spit85:
Ok, with the new modules my phone boots. Now I will testing the new kernel the next hours.
[Xperia Arc Android Development] cx-11:
Here to with the new WIFI module the phone boot up on V22 Kernel WiFi runns well but just on v22

But you can install every kernel u won't just change the modules to. V22 module just ford v22 kernel

Otherwise WiFi don't works well

Right now testing the new kernel...

THX Doom
[Xperia Arc Android Development] DizXDA83:
will this work fine on Miui 2.4.13 GB? i couldn't get to boot on v21! And it drains too much batery...
[Xperia Arc Android Development] :
thanks doom : D
[Xperia Arc Android Development] theynd:
Thank you works perfectly :D
[Xperia Arc Android Development] PaPa_nIc0LaU:
works perfectly :D

best regards from Portugal :)
[Xperia Arc Android Development] Ninolina:
My ARC S booted without problem. I am testing new v22 version and will give feedback after some hours of using it. So far no issues.

Thanks DoomLord...;-)
[Xperia Arc Android Development] sleepsus:
strange, kernel boots fine wifi works too, but I lost root?

I'm on an Arc S with stock FW .62, unlocked boot loader

tried to re flash RootXperia.zip, still does not work.

re flashed to DoomKernel V19, got root back. Whats going on?
[Xperia Arc Android Development] Ninolina:
No problem here with root using v22...:)
[Xperia Arc Android Development] sleepsus:
Re did the flash of v22, i got root back again ... wonder what the * happened? :confused:
[Xperia Arc Android Development] natural4862:
That's what I did:

1 - Turn off the phone, go into fastboot, flash kernel

2 - Go into recovery, flash SE Tweaked ROM

3 - Flash kernel module

4 - Turn on the phone, everything is OK: just during booting, the phone vibrate one more once (totally vibrated twice)

5 - Turn off again, go into flashmode, flash baseband -36

At this moment, something weird happened, the phone go into flashmode just like usual, but it disconnected automatically after 10 seconds and reconnected again into charging mode (these information was shown in the flashtool's window)

Also, flashtool showed that I was not in usb debugging mode, but I really turned on usb debugging together with unknown source enabled

Is this problem related to the kernel, the ROM, or anything else???:confused: Anybody having similar issue? I never had it before, and problem can't be solved even install flashmode driver again:(

-----------------------------------------

Problem solved:

Just because I do not follow the order of flashing, the original order should be open flashtool, select firmware and plug the phone, but in this case I plug the phone into flashmode before opening flashtool, so it disconnect
[Xperia Arc Android Development] winstonma:
Thanks DooMLoRD

v22 boot without any problem. However I tried enabling zram and I got stuck on the last step. The swapon function returns device is busy. So is zram enabled already?

Thanks for your help and contribution.
[Xperia Arc Android Development] DooMLoRD:
Yups

The command to check if it's already enabled is:

free
[Xperia Arc Android Development] PaPa_nIc0LaU:
after i updates to v22, my Mobile no longer display the operator name is displayed the name of the tarifario.
[Xperia Arc Android Development] spit85:
The only issue I have with V22, is that I can't send a mms. I checked if it's my phone and not my network. But it's not a big problem, because I sent so much mms. But i don't see any other problems. The boot time is 6 seconds faster dan V21or V20.
[Xperia Arc Android Development] DooMLoRD:
No changes related to either of these have been made in kernel...
[Xperia Arc Android Development] spit85:
On a early version of the kernel mms works. But I search in my phone, that it is maybe one of the settings that's the reason for the issue.
[Xperia Arc Android Development] codestation:
It shows nothing or just "No service"? I have this problem but it was caused by BatteryXL 2.0.
[Xperia Arc Android Development] PaPa_nIc0LaU:
its strange because in previous versions of kernel it does not happen ...

is not serious, or makes a big difference. was just a question.
[Xperia Arc Android Development] AUDIMEN:
As always, great job DooM! Thank you!
[Xperia Arc Android Development] Qwerty123 \m/:
I've got a really strange problem with my Arc S O.O

Well i follow these steps

Flash clean stock firmware .62

flash doom kernell V22

Do Factory Reset in CWM

Flash Modules for WiFi

Flash ROM

Everything goes fine the phone boots up BUT the ROM is still stock :O

All the bloatware like Wisepilot and lets golf is present

AND, in Settings - it shows the ROM as" SE ARC TWEAKED" and all the tweaks ie lock screen are present and status bar

What i don't get is how come all the bloatware :O

Same problem for Arconium 8

I mean, is it the kernels fault or the Zip file ?

I re downloaded the roms and still had issues :O
[Xperia Arc Android Development] chia8331:
err... a real noob question:

is there a more detailed instruction on how to enable zram? or can't it just enable itself on the kernel level (like auto-enabling upon install v22)?
[Xperia Arc Android Development] DooMLoRD:
if required i will post an update.zip which will contain an init.d script to auto-enable ZRAM on each bootup
[Xperia Arc Android Development] Ninolina:
It would be great. I also have a problem enabling it with terminal - say "busy" when I try to enable it.

Thanks DoomLord...:-)
[Xperia Arc Android Development] DooMLoRD:
if it says busy then most probably its already enabled ;)

u can check if the swap drive is activated using command:

free
[Xperia Arc Android Development] Muurahainen:
That bloatware isn't in kernel. It's in rom.
[Xperia Arc Android Development] HellRoot:
My wifi shows error on the v22 I have flashed the right modules... Anyone else experience this?
[Xperia Arc Android Development] irononreverse:
You've installed the V15 modules?
[Xperia Arc Android Development] DooMLoRD:
DooMKernel ZRAM Enabler v01

download this file and flash it via recovery

it will enable ZRAM swap on ur device

to disable ZRAM just delete the file /system/etc/init.d/00zram

enjoy!
[Xperia Arc Android Development] X-Droidinary:
All good with the kernel. Works perfectly on stock GB.
[Xperia Arc Android Development] DooMLoRD:
ZRAM isnt compulsory to activate... but it will give u more usable RAM hence help in keeping more apps open and better multi-tasking..

test it out yourself... keep it enabled and use it for a day or two then disable it and then use again for day or two...

let me know your feedback!
[Xperia Arc Android Development] AwesomeARC:
Can i use this on CM7?....

Thanks
[Xperia Arc Android Development] DooMLoRD:
nope...
[Xperia Arc Android Development] wth_is_life:
Is there any way to remove all the GPU overclocking ?, I really don't want to damage my phone and/or reduce its lifespan (or whatever it's called)
[Xperia Arc Android Development] DooMLoRD:
GPU overclocking has been removed in v22 kernel
[Xperia Arc Android Development] wth_is_life:
Ah thanks, you didn't say that in the changelogs :)

If you update the kernel, I only need to flash the new one right ? No need for backing up or anything ?
[Xperia Arc Android Development] DooMLoRD:
i forgot to mention it in changelog ;)

updated it now...

best do a backup before updating/shifting to ANY kernel...

also the latest kernel requires newest modules to be flashed via recovery...
[Xperia Arc Android Development] kamil004:
Why? please make other kernel with OC GPU (v22 OC GPU) better way

or other way, add ZRAM to kernel v21 with OC GPU

THX for kernels and again please make kernel with OC GPU
[Xperia Arc Android Development] doomed151:
Anyways, if you guys are using the latest Arconium, swap on ZRAM is enabled by default (32 MB).
[Xperia Arc Android Development] spit85:
If you read a few posts earlier, you wil read that is was tested in version 21. Without GPU overclocking the performance is better, because the GPU chip don't support overclocking so good.
[Xperia Arc Android Development] kamil004:
Why ? my Arc is never reboot and FC

Kernel OC GPU work perfectly and performance in 2D, 3D is better

---

DooMKernel_ZRAM-Enabler-v01_CWM dont work (dont enable ZRAM after boot)

this FAQ also dont work

Only manual swapON work in terminal emulator
[Xperia Arc Android Development] DooMLoRD:
as per tests GPU OC did not benefit most devices...

P.S.: i dont have time to maintain so many modified version of same kernel

on v22 the ZRAM devices is defined to be ~100MB in kernel

ur ARC is lucky but most devices arent...

the ZRAM enabler works best on latest (v22) kernel as the ZRAM driver has been updated...
[Xperia Arc Android Development] kamil004:
so what app use to automatic swapON after reboot? or other mod?
[Xperia Arc Android Development] DooMLoRD:
u dont need any app... just use the update.zip and make sure that u are on newest kernel (v22)
[Xperia Arc Android Development] kamil004:
I have installed update.zip and v22 kernel correctly but after reboot swap is not active. File is in init.d folder ok , so i dont have idea why swap dont turn on :-)

Only with terminal turn swap on and size is ~100mb so... OK.

Ihave busybox 1.20 in xbin folder, rom stock 4.0.2.A.0.62

------

Ok problem is solved i install GScript apk and add script manual

#!/sbin/sh

mkswap /dev/block/zram0

swapon /dev/block/zram0

After reboot 2clicks and swap is active ;-)

Wyslano z Xperia Arc (ROM LT18i)
[Xperia Arc Android Development] Muurahainen:
Working like a charm.

Thanks Doom.
[Xperia Arc Android Development] Ninolina:
Does that mean we (who use Arconium v8.2) do not need to enable ZRAM with this .zip file? I did already posted that when I tried to enable it I got message that it's "busy"...:) Can this improve your swap on ZRAM or it's the same thing?
[Xperia Arc Android Development] Muurahainen:
Busy message is telling that it's already enabled.

So you don't need to worry about that one.
[Xperia Arc Android Development] doomed151:
The included init.d script changes it to 32 MB.

Yes, you don't need to reenable it. You won't notice any changes since it's already enabled when you first install it.
[Xperia Arc Android Development] frelle218:
Just enabled the Zram mod, and WOOOW it works so well! No launcher redraws at all anymore :)

Edit: although I never run out of memory which is great, some apps actually feel a little bit slower when launching them. I understand and appreciate that much work has been done in order to optimize Zram for Arc, but I think I would still like to lower the compression level just a little bit myself since every person uses their own set of apps and it is impossible to optimize it perfectly for every setup at the same time. Would it be possible to change the level manually? Thanks!
[Xperia Arc Android Development] HellRoot:
No the modules for v22 but I think it is rom related
[Xperia Arc Android Development] SevenD2:
Edit, didn't read previous posts
[Xperia Arc Android Development] runld:
I removed the

"echo 32776200 > sys/block/zram0/disksize"

from your ROM (Arconium8.2) /system/etc/init.d/97misc,

reboot and now "free" command will shown total Swap size 102392

Thanks for the hint Doomed..
[Xperia Arc Android Development] DooMLoRD:
compression is not configurable but u can define "swappiness" parameter which tells the system how often to use swap space...

its not a necessary addon for everyone... its mostly for ppl like me who have LOTS of apps running in background...
[Xperia Arc Android Development] borjacamb:
Doom wich governor and I/o I should use for battery saver? I'm doing test but allways i see the same battery drain

Enviado desde mi LT18i usando Tapatalk 2
[Xperia Arc Android Development] frelle218:
Is it hard to set the swapiness parameter? With Zram activated it currently takes more than twice as long time to load web pages as opposed to not activated
[Xperia Arc Android Development] DooMLoRD:
if u want best battery try Conservative governor...

it fairly easy, as posted by some user before:

sysctl -w vm.swappiness=40

this is for increased swappinees

u can decrease the value/bring it close to zero to reduce swappiness (but i am not 100% sure about this)
[Xperia Arc Android Development] heihei_ivan:
Benchmarks with v22 kernel:

ROM: arconium 8.2

CPU freq: 1.4GHz ondemand

Results:

Quardrant: 1397

Vellamo: 1002

NenaMark2: 16.1 (higher than #3021 :eek:)

AnTuTu overall: 3887

RAM 470

CPU Integer: 940

CPU Floating pt: 420

2D: 300

3D: 997 (again higher than #3021 :eek:)

IO: 490

SD Read: 138

SD Write: 132
[Xperia Arc Android Development] DooMLoRD:
thank you once again for a detailed report!
[Xperia Arc Android Development] wth_is_life:
Can you tell me the different between smartassV2, interactiveX and ondemand ?

I've googled them but didn't get out much info
[Xperia Arc Android Development] kamil004:
ondemand

deadline

benchmark

Wyslane z Xperia Arc (ROM LT18i)
[Xperia Arc Android Development] gabimx:
I have a problem flashing this kernel.

i have 2.3.4 android and .42 FW, recently i flashed it.

in the CMD it says that the device must be rootef first, but my phone is rooted and the bootloader is unlocked.

this is the CMD picture;

what can i do to resolve this?
[Xperia Arc Android Development] kamil004:
device must be rooted first, look at screen.
[Xperia Arc Android Development] gabimx:
i have said befor "but my phone is rooted...".

i have root in my phone already.
[Xperia Arc Android Development] chitose_ndy:
Too sad..

This kernel's development stopped..

:(
[Xperia Arc Android Development] DooMLoRD:
for being "ROOTED" u need to unlock bootloader!!!

i just posted the latest kernel 2 weeks back! :p

also development focus will now be on ICS kernel as most ppl will be switching to ICS
[Xperia Arc Android Development] barakaz:
first thanks for you perfect work

second is ics better than GB in battrey life and performance

third i installed your last kernel which is pretty good but i have one question i use no frills cpu to reduce my processor setting it to 1018 what is the best governor and i/o ?

thanks in advance
[Xperia Arc Android Development] gabimx:
and as i said a post befor, i have an unlocked bootloader.

what can i do?
[Xperia Arc Android Development] kamil004:
ics is boring . 2.3.4 is much better

Wyslane z Xperia Arc (ROM ArcS LT18i)
[Xperia Arc Android Development] bassie112:
Hmm. v22 gives me very bad performance. I get a lot of lag using Arconium 7.3 or 8.2 (stock) rom. When I use v18fix1, without GPU overclocking, the lag is gone and I have very good performance. Don't know why, but happy with v18fix1 although CWM on that kernel is verry buggy.

EDIT: Arconium 8.2 seems to be the problem. v22 works good with Arconium 7.3 when you first clear the cauche.
[Xperia Arc Android Development] DooMLoRD:
disable ZRAM and try...

some custom ROMs have it enabled by default...
[Xperia Arc Android Development] chitose_ndy:
How to disable it?
[Xperia Arc Android Development] DooMLoRD:
if u use the enabler i provided then just delete:

/system/etc/init.d/00zram

if its enabled by ROM then find the corresponding lines and remove them
[Xperia Arc Android Development] chitose_ndy:
Okayy thanks ;)
[Xperia Arc Android Development] bassie112:
It wasn't enabled by default but I used your patch. I reflashed the rom without enabling zram. Still v22 is way worse than v18fix1. Minecraft and Draw Something are very slow and choppy. Also the UI from Go Launcher is quite unresponsive on v22. Battery on v22 is very good, but a slow phone doesn't weigh up to that of course. Maybe the Arconium rom has a certain mod which is not compatible with v22... not sure, but I'm happy on v18fix1 ;)

Running the Arc on 1.4GHz@-50mV btw
[Xperia Arc Android Development] DooMLoRD:
well i got exactly the opposite reports from PLAY users... but well everyone has their preferences... may be v18-fix1 works better for u...

thats why older kernels are still on server... use what u like ;)
[Xperia Arc Android Development] winstonma:
I am using Arconium 8.2 + Doomkernel v22. I modified the diskcache to 64MB. I feel that my device lags when the cache partition is nearly full.
[Xperia Arc Android Development] bassie112:
Yes indeed cache is a problem. I found out that the combination of v22 kernel with Arconium 8.2 is not going to work lagless, with or without zram. However the older version of Arconium (7.3) works very good with v22 (with or without zram) when you first clear the cache. So on the second hand, the kernel is most likely not the problem.
[Xperia Arc Android Development] winstonma:
I disabled ZRAM and now my device is smooth.

EDIT: After using 10 hours seems the device is lagging again. I think I should revert back to v18
[Xperia Arc Android Development] caqo71:
Where to check if Zram is enabled by ROM?, wich file has a code line with that?
[Xperia Arc Android Development] winstonma:
I am using SetXperia (Link) which shows me the swap info. But you can use root explorer and investigate /etc/init.d directory. See if there are ZRAM related script.
[Xperia Arc Android Development] NeoCream:
@Doom: Can you add the Intellidemand governor to the kernel? I think this governor has some great battery life potential.
[Xperia Arc Android Development] DooMLoRD:
later ;)

right now have to get ARC ICS kernel sorted out
[Xperia Arc Android Development] justkiddinghere:
My battery heats up so much I mean back cover when I play a game or charge my phone

Using your kernal on gb. 61 fw

With 1.2 GHz smartass n deadline

Any sujjesion?

And do tell if it is dangerous
[Xperia Arc Android Development] adiif1:
v22 is battery drain better is v21 ;p
[Xperia Arc Android Development] winstonma:
Hi Doom,

I am using DoomKernel v22 with Xperia S 6.1. Initially the device is quick and snappy. However after using Links2SD and 150+ apps, the device becomes slow after long use. That happens when I use Arconium 8.2 too. I tried uninstalling some apps and the device becomes smooth again.

By the way I am using 100mb of ZRAM, I checked the swap usage while it lags. And it happens when used swap reach 80+mb. After hot reboot the used swap dropped and the device is snappy again.

I believe there are rooms of improvement for memory management. But it's just my guess.
[Xperia Arc Android Development] DooMLoRD:
u need to use ZRAM as per ur needs... if u have TOOO many apps open u should consider increasing ZRAM size using scripts...
[Xperia Arc Android Development] Kajendran:
I installed doomkernal v22...

Installed the zram patch..

But I couldnt find these codes on my init.d script...

Iam a noob....!!!

So how to find out weather its enabeled or not...:confused:

Do I need to manually add it???:confused:

If so where should I add it. (Please explain)

(Could u add a screenshot of your init.d script)

Thanx...!!!! :)

:):):):):):):):)
[Xperia Arc Android Development] DooMLoRD:
If u have flashed the zip file provided by me then you do not need to edit anything...

Btw the zram autostart code is in 00zram init.d script
[Xperia Arc Android Development] Kajendran:
But I couldn't find any 00zram init.d script...!!

:confused::confused::confused:

Thanx...!!!
[Xperia Arc Android Development] winstonma:
Yes I agree increasing ZRAM will get me a faster device. As far as I know the new changes on V22 (compared to V18) is updated ZRAM driver. But V18 could free up more memory and thus handle the stressed memory condition better.
[Xperia Arc Android Development] ady999:
would this sd card work with your kernel

got your kernel, great job donated $15 to you, sd card http://www.amazon.co.uk/SanDisk-32GB-Micro-Ultra-Adapter/dp/B007JTKLEK/ref=dp_ob_title_ce THANKS IF YOU RESPOND
[Xperia Arc Android Development] babygau:
Got crashed when using Autokiller Memory Manager >.<

Updated: my issue is fixed, sorry if it bother u :P
[Xperia Arc Android Development] SimonZ:
I try to insert an sd card 4GB with only one partition and formatted in ext3 but Arc says "Empty SD card or with unsupported file system" than i found a transparent icon with the word "lite" and the symbol of sd card, if i tap on it i get a message "app not found"
[Xperia Arc Android Development] Flo95:
Ok, thanks. I think I'll do it at the weekend.

Fb Inside Xperia is just good for syncing contacts what can be done by the Facebook app, too so no need for drm.
[Xperia Arc Android Development] inteks:
stable @ 1. 86 :-D BTW... are higher clocks possible ?

and why i cant swap to /cache/swapfile. swp ???

only to sdcard works...
[Xperia Arc Android Development] DooMLoRD:
swapping works: [already integrated in kernel from v05 onwards]

new addition: (added frequencies from 368Mhz to 768Mhz) [kernel not yet released]
[Xperia Arc Android Development] funkyblue04:
Wrong thread. Oops!
[Xperia Arc Android Development] DooMLoRD:
use the new version v05-FIX... it resolves that error.... i have tested restoring backups with this fix version and it works..

kindly upgrade to latest kernel..
[Xperia Arc Android Development] funkyblue04:
I meant to post it in the NEO thread..:)
[Xperia Arc Android Development] inteks:
yepp swap work ! but not on /cache folder. i searched a bit and found thats because of yaffs2 filesystem :(

is there any workaround ?

i dont like to repartition my sdcard (because of unmounting when connected to PC)

btw. with the new firmware its really difficult to get a low memory condition!! i have to start allmost all installed apps to get 2mb swapped ...
[Xperia Arc Android Development] DooMLoRD:
yes u try some apps from market which make a swap file rather than use a swap partition...