[KK 4.4.2][ROM]Mackay OMNI ROM (27-Feb-2014)

I have been sharing my CM7/CM9/CM10/CM10.1/CM10.2/CM11-based builds for several devices. MackayROM was first based on CyanogenMod sources, but I decided to move over to Omni as base for my ROM.

About Omni: Omni is a free, community built, aftermarket firmware distribution of Android 4.4 (KitKat), which is designed to increase performance and reliability over stock Android for your device.
Disclaimer: I am not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed. Please do some research if you have any concerns about features included in this ROM before flashing it! YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.

If you run into errors, I may not be able to solve it!

If you know a solution to a problem, either upload it yourself to Gerrit Code Review or contact me through pm.

The ROM is based on Omni sources with the following changes:
-Mackay Kernel:
-Set of cherries picked from gerrit (differing by the day)
-Some additional patches I did myself to the source code

Feature request are OK, but remember:
1. I try to stay close to stock
2. I will not include additional apps, unless they can be build from source
3. The time I spend on features depends on how much I like them myself

Although it is possible to enable ART, this is not advisable:
-Takes long to convert from Dalvik to ART on first boot
-Needs more RAM
-Can cause soft reboots
But off course, YMMV -> light users may have better luck

Changelog of 27-Feb-2014
-Omni codebase of 26-Feb (e.g. new bootanimation )
-QS Ribbon is gone

-Custom kernels can be used only if specific for OmniROM => currently none

Full changelog of compared to stock Omni
Omni sources of 31-Jan-2013

All features compared to stock kernel:
Separate kernel thread: http://xdaforums.com/showthread.php?t=2532813
-Mackay kernel:
-Christopher86's cortex-A8 optimized Linaro toolchain (January version)
-O3 optimization
-updated to linux kernel version 3.0.101
-SLQB memory allocator (default, should be slightly faster)
-XZ compression of kernel & initramfs
-396MB RAM
-SIOplus scheduler
-Added Lagfree governor
-ROW scheduler (tweaked, default scheduler)
-FIOPS scheduler (tweaked)
-XZ compression of kernel & initramfs
-many improvements to IO schedulers in general
-Deadline tuning (thanks to DerTeufel)
-Ondemand tuned (updated based on code of stratosk)
-SmartassV2 governor
-OndemandX governor
-Interactive governor (updated to android 3.4 code + fixes)
-Wheatley & Lulzactive governors
-Conservative tuned
-Call volume hack (use “Settings>Mackay Settings”* to set volumes)
-Reduced battery polling interval
-Fast charge (activate through “Settings>Advanced Settings”* or the QuickCharge toggle in MackayROM)
-WiFi PM_FAST mode selection (activate using “Settings>Mackay Settings”*)
-Battery life extender (set through “Settings>Mackay Settings”*)
-CustomVoltage (set using NSTools)
-USB OTG support (needs external power supply)
-1100-1400MHz OC steps
-Custom kernel splash (Thanks to Malcho)
-Updated charging logo to match open charger
-Disabled swap & zram
-Improve memcopy/memmove
-Improve the performance of memcpy and memmove
-Kill task closest in size to memory needed to free
-LOAD_FREQ (4*HZ+61) avoids loadavg Moire
-Entropy tweaks: http://lwn.net/Articles/489734/
-backport CPUIDLE from 3.5
-arm/crypto: Add optimized AES and SHA1 routines
-Unaligned CPU access
-Improvements to RWSEM code
-Improvements to binder code
-Improvements to tmpfs
-Added frandom (much faster random number generator)
-Updated to lowmemorykiller with PID whitelist (thanks to stratosk)
-Many parts of the code build as module to reduce effective kernel size
-Updated wifi driver to 5.90.195.114
-Updated GPU driver to DDK 1.8@2198402
-Proportional Rate Reduction for TCP
-Introduce timer slack controller
-Zram patched
-Low RAM switch option (default off)

To see the additions on top of Omni, check github (additional patches are always shown on top):
Settings
OmniGears
Frameworks

Fresh install:
Can be flashed on top of any ROM:
-Do a factory reset
-Wipe /system
-Flash ROM
-Boot the phone
-Reboot recovery
-Flash gapps & superSU
-Reboot your phone

Update:
-Flash ROM
-Reboot your phone
(no wipes or other things needed, just flash & reboot)

-Custom kernels can be used only if specific for OmniROM => currently none

Credits:
-Omni team for in incredible job on the ROM base
-OmNomteam: great group of Omni fanatics
-teamhacksung/pawitp for making KitKat work on our ancient phone
-stratosk/DerTeufel/Mialwe for the inspiration I got from their kernels
-rootax for providing a high-speed server for high quality downloads
-Malcho for his kernel splash & bootanimation

Downloads:
Rootaxbox

For those who want to theme it even further, Bejda made a Mackay splash screen!
http://xdaforums.com/showthread.php?t=2214468

XDA:DevDB Information
[KK 4.4.2][ROM]Mackay OMNI ROM, a ROM for the Samsung Galaxy S I9000

Contributors
kasper_h
ROM OS Version: 4.4.x KitKat
ROM Kernel: Linux 3.0.x
Based On: Omni

Version Information
Status: Beta

Created 2013-12-15
Last Updated 2014-02-27

Known issues:

-Mackay Settings FC
-??? tell me!

rodman01 said:

dirty flash on yesterdays cm11.0 nightly didn't worked for me...caused (soft) reboots after displaying the sim code entering screen a few seconds...next try is with full wipe.

Click to expand...

Click to collapse

Did you read the instructions? First flash should be after a factory reset + /system wipe
I tried a dirty flash myself, resulting in a bootloop

jv.batista said:

Just out of curiosity, what was the problem?

Downloading and flashing...

BIG BIG THANK YOU...

Click to expand...

Click to collapse

You mean with the data connection?

I still don't know what the real problem is. If I build my kernel with the Omni build system, data won't work. If I build my kernel with the CM11 and replace the Omni-build kernel for this CM11-build kernel, data works.
There are several differences between Omni & CM11:
-ramdisk differences (but adjust Omni ramdisk to make it almost identical to CM11 does not help)
-kernel image itself (it is not the same size, even though it is build with exactly the same toolchain)

I have spend many-many hours on this, but haven't been able to find it. Therefore, I decided to take the simple approach of using the CM11-build kernel as a prebuilt kernel for my Omni builds.

rodman01 said:

Yes I read it, but tried it anyways ...and my post/feedback was meant as a warning or tip for all others, not to try it without! Sorry for the confusion!

Click to expand...

Click to collapse

Don't worry, I actually like it when people post these things as people don't always read the instructions anyways so having some additional warnings throughout the thread are fine with me