Development [Kernel][24.09.2023][Android 13.0.0]Kirisakura 1.1.5_Raviantah for Pixel 6/Pro aka "RAVIOLE"
- Thread starter Freak07
- Start date
In my case, flash it with kernel flasher and not using any kernel manager. What manager are you using?
Thanks for the detailed reply! Yea I've already set it to LTE only. The CleanSlate battery saver might help but probably not much because when the phone gets hot it ends up throttling way below those frequencies anyway. It's so bad that on a hot day (25c+) I basically can't charge my phone because it also thermal throttles the charging. It's time for me to take a look at that code you sent me a link to with all of the throttling logic. At this point I'd sacrifice battery longevity and just run the thing way hotter so that I can at least charge!
Read the instructions on post 4 or whatever early post it is and follow them exactly word for word and you'll have no issues. I've done it every month for the past 6 months. Don't deviate from the instructions.
You may point out the key point - Magisk version.
I use MagiskDelta(v25210) - It still keeps at magisk v25.2. That maybe the reason why my pixel 6 pro without rebooting issue. (I flashed kernel by ex-Kernel Manager and no problem)
Pixel 6 here have no reboot issues running april update, but something is wrong with the battery since i updated, something is running in the background and drains the phone when in idle mode, phone was 41% and drained to 2% without i touch it in a couple of hours
Try a battery stats app of sorts to see what it is exactly mate. Havent had any isues with drain, if anything this has been total opposite and feeling grand
So i had random reboots previous but now i am seeing some short of pattern here , seems like when ever i use camera and switches lens it crashes and reboots itself , im on latest test build which is 1.0.2_4 and i am attaching contents of sys/fs/pstore
Gsam stats says kernel (android os), strange as i never experienced this before, might give v.1.0.2 a try instead of 1.0.2_4
I'd really like to give this kernel a try. Can anyone tell me if it's working ok on the latest Android 13 Stable TQ2A.230305.008.E1? I can handle the occasional reboot so long as it doesn't get really annoying. Also, any suggestions as to which version to install? Thanks!
It works on the latest stable Android version. Your reference is not to the latest version, which is TQ2A.230405.003.E1.
Start with the latest version of this kernel,and follow instructions in first post in thread.
Start with the latest version of this kernel,and follow instructions in first post in thread.
Test Release 1.0.3_1
Hey everyone,
I don´t have much time at all to work on the kernel right now, but I was very very happy to see the amount of users willing to flash and share the logs! A big thanks to everyone participating.
Here´s another public test release that might address the crashes some are experiencing. I still didn´t face the crash myself a single time so far, so it´s impossible to confirm from my end.
Generally it seems to me that some face it often, while others don´t at all.
A few posts here were very useful, I looked at them all, checked all the logs but I don´t have time to reply to every single one of them. Thanks for providing all those logs, it´s very helpful!
One post with playstore and restricting the permissions of certain apps via an xposed module caught my eye. Interesting that this seems to trigger the bug. So far all the logs looked the same. Whatever causes it, it´s probably some very very corner case. But even this corner case shouldn´t be able to crash the kernel from userspace.
As long as you´re running latest stable magisk or latest canary, magisk should also be no problem at the moment. So that speculation doesn´t lead anywhere, as I can see the kernel crashing. Nothing to do with magisk.
So I´d like to ask, just like the last time:
I´d appreciate if as much users as possible could flash and run this. Especially those that suffered crashes before. In case you get a random reboot please zip up and share the contents of sys/fs/pstore once you phone booted up again just like so many did before, which is great for me to see!
As a small bonus there are some other improvements in this kernel on top of me looking into the crash as well.
Hey everyone,
I don´t have much time at all to work on the kernel right now, but I was very very happy to see the amount of users willing to flash and share the logs! A big thanks to everyone participating.
Here´s another public test release that might address the crashes some are experiencing. I still didn´t face the crash myself a single time so far, so it´s impossible to confirm from my end.
Generally it seems to me that some face it often, while others don´t at all.
A few posts here were very useful, I looked at them all, checked all the logs but I don´t have time to reply to every single one of them. Thanks for providing all those logs, it´s very helpful!
One post with playstore and restricting the permissions of certain apps via an xposed module caught my eye. Interesting that this seems to trigger the bug. So far all the logs looked the same. Whatever causes it, it´s probably some very very corner case. But even this corner case shouldn´t be able to crash the kernel from userspace.
As long as you´re running latest stable magisk or latest canary, magisk should also be no problem at the moment. So that speculation doesn´t lead anywhere, as I can see the kernel crashing. Nothing to do with magisk.
So I´d like to ask, just like the last time:
I´d appreciate if as much users as possible could flash and run this. Especially those that suffered crashes before. In case you get a random reboot please zip up and share the contents of sys/fs/pstore once you phone booted up again just like so many did before, which is great for me to see!
As a small bonus there are some other improvements in this kernel on top of me looking into the crash as well.
Hey Freak, I haven't run this kernel yet. I'm currently on TQ2A.230405.003.E1, should I use 4.4.2 or 1.0.3 that you just put out?
Thanks for the log. Is that a special USB c port? Connection set to charge only?
I'm still unable to reproduce the bug on my own end, that's why I ask.
Please try the test build (1.0.3_1) from the post above yours. That's the same issue I'm already aware of, so i already know 1.0.2 is affected.
Flash the 1.0.3 one. The crash was reported on 4.4.2 as well, but there's a good chance you're not affected by this bug at all, just like myself.
So it's best to run the last one I posted.
Thanks for getting back to me but I went ahead and flashed 1.0.3 a couple of hours ago and I must say it's running great! No issues at all. I'll be sure to send a log if something does happen.Thanks for the log. Is that a special USB c port? Connection set to charge only?
I'm still unable to reproduce the bug on my own end, that's why I ask.
Please try the test build (1.0.3_1) from the post above yours. That's the same issue I'm already aware of, so i already know 1.0.2 is affected.
Flash the 1.0.3 one. The crash was reported on 4.4.2 as well, but there's a good chance you're not affected by this bug at all, just like myself.
So it's best to run the last one I posted.
Its classic hight speed USB-C - connection set to charge only.Thanks for the log. Is that a special USB c port? Connection set to charge only?
I'm still unable to reproduce the bug on my own end, that's why I ask.
Please try the test build (1.0.3_1) from the post above yours. That's the same issue I'm already aware of, so i already know 1.0.2 is affected.
Flash the 1.0.3 one. The crash was reported on 4.4.2 as well, but there's a good chance you're not affected by this bug at all, just like myself.
So it's best to run the last one I posted.
I already use the test build 1.0.3_1 I have no get crash actually.
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18Update to Raviantha 1.1.5
Hey guys and girls,
This is the presumably last release for A13 from my end. Google surprisingly delayed the stable A14 update and decided to push out a late September update for A13.
I didn´t plan to push out another A13 release, that´s why I switched my build environment to the A14 source/branches so I can have a head start.
The September update however contains a security patch for the mali gpu driver regarding an exploit that´s currently under limited targeted exploitation according to Google.
That´s why I decided to push out an update from my end as well, so there´s a proper final version for A13.
Linux-Stable up to 5.10.195 is included as well. Respectively .196, as .196 is just a revert for a broken commit that I reverted while merging .195 anyway.
There are bigger changes in the pipeline, some of which I tested for a few months now.
Those will be released alongside the A14 update. Maybe not all with the initial release.
Important:
Please note that this release is not for the QPR Beta firmware or dev preview, but the stable android 13 firmware!
Please make use magisk stable if you don´t know your way around bugs and don´t want to actively help debugging magisk development.
You should download magisk stable only from official magisk release site!
There are other small improvements as well. Please check my github for those.
The kernel is made for stable A13 firmware, not beta.
I wish everyone a nice day.
Changelog:
- Include September source drop
- Linux-Stable bumped to 5.10.195 (respectively .196)
- other fixes please check github
Download:
Attached to release post as AFH is currently down.
Make sure to keep the ak3 helper module installed in Magisk Manager and do not delete it!
If you´re coming from another kernel restore stock boot.img, dtbo.img, vendor_boot.img and vendor_dlkm.img before flashing. Thank you.
Make sure to meet the requirements and read the OP as well as the FAQ before flashing.
I wish everybody a great day/evening!
Have fun, enjoy the kernel and your phone.
If you like my work please consider a donation.
Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea: http://paypal.me/freak079
The main problem is time I have available.
The main kernel branch is unified.However the submodules are not unified, because the hardware is obviously different. Touchscreen etc.
I switched the build environment already to A14, switched it back takes time. There are separate environments for Pixel 6 and Pixel 7.
The environment consists of a lot of submodules, all of which take time to update.
Every pixel 6 release requires me to download the firmware package, extract the ramdisk, 2 compilations for respectively oriole and raven, creating the packages, updating the XDA thread.
That´s a lot of maintenance work for every release going on, which just takes a lot of time.8
I was feeling brave, so jumped ahead anyway.
If anyone else was thinking about trying, I can confirm that the 1.1.3 kernel works with the latest September stock firmware update and Magisk canary 26301.21 -
121Kirisakura-Kernel for the Pixel 6/Pro
Hello everyone,
To keep it short: Here is Kirisakura - Kernel for the Google Pixel 6 Pro aka Raven and the Pixel 6 aka Oriole, together Raviole.
I would appreciate if everybody that flashes the kernel, reads at least once through this opening post and the following ones.
The kernel aims to keep most of the subsystems updated, way ahead of the stock kernel, thereby improving security, stability and performance!
This includes Linux-Stable, F2FS-Stable and kernel/common!
If that got you curious, have a read about linux-stable and why it is important here. The stable-process is not the same for every subsystem, but the general idea, rule of thumb and benefits are applicable for other subsystems as well.
The kernel includes a lot of improvements and contributions from other developers as well. Without this kernel would not exist.
A big part of improvements originate from @arter97´s, @kdrag0n´s and @Sultanxda´s work. Many others contributed in some way or another to this kernel.
A big thanks to all of them at this place!
Now lets continue with a list of features in the next paragraph!
Features:
Main Features:
- Based on latest A13 kernel sources from Google, Kernel is made for Android 13
- Linux-Stable-Upstream included to 5.10.195
- Compiled with prebuilt Google clang 17.0.3
- Backport entire RCU subsystem to Linux 6.0
- Lazy RCU which should result in power-savings while the device is lightly-loaded or idling, more information here
- Backport Maple tree from Linux 6.1
- improve preallocations from maple tree (affects especially android)
- reduce necessity to rewalk the maple tree
- Per VMA-locks in conjunction with Maple Tree RCU-Mode (improve app launch time, this feature in general benefits greatly from lazy rcu!)
- further improve maple tree/per-vma locks introduced in an earlier release
- make TEO-Cpuidle util-aware (improves latency, performance and decreases energy consumption for certain workloads, more information here)
- introduce runnable boosting, wire it up with pixel_sched
- FHD Support for Pixel 6 Pro (display is able to run at 1080p), more info here and here
- merged kernel/common (improvements to android-common-kernel straight from google)
- MM subsystem reworked (more info and some patchsets linked in this post)
- Multi-gen LRU backported/reworked and enabled (more info here, here as well and here) to improve mm and reduce cpu cycles, latest V15 state
- improvements to uclamp, prevent capacity inversion (reduce missed frames)
- greatly speed up camera launch time!
- Utilize an additional kswapd thread to increase throughput for memory reclaim
- pelt multiplier tied into powerhal to speed up scheduler during interaction (more info here)
- prevent frequency spikes caused by small transient tasks when the device is idle(more info here)
- tie mechanism to prevent frequency spikes caused by small tasks also into powerhal
- scheduler improvements for RT (realtime) tasks
- introduce and setup PMU limiter (prevents CPU from spiking to max when it isn´t needed, based on PMU reads, more information here)
- improve camera performance by tuning the powerhal during recording
- bias tasks of rt, sf and ta groups to prefer high capacity cpus during app launches, interactions
- improve app launches via powerhal
- improve trusty driver performance which connects to fingerprintscanner-hal by using high perf wq during fp unlock
- restrict maximum CPU-Freqs during screen off/ idle to 1.1GHZ for all clusters to save power
- introduce unfair f2fs rwsems to prevent writer starvation and improve IO perf under heavy load
- fuse: give wakeup hints to scheduler to speed up compress/decompress in internal storage (details)
- enable RCU_BOOST (details here), also fix RCU_BOOST behaviour
- F2FS-Stable updated
- merge and enable f2fs block_age-based extent cache (improve the accuracy for data temperature classification, reduce the garbage collection overhead after long-term data updates)
- TCP backports from mainline
- SSG IO scheduler for reduced overhead and less CPU cycles (more lightweight and android optimized)
- Scheduler updates from linux-main
- use improved energy model for exynos cpu cooling/thermal control
- allow GPU to scale down to 150mhz, but boost to higher value in case of interaction via powerhal
- affine IRQS to CPU 7 during camera usage for improved performance as it tends to overload the little cores
- use bbr as default TCP congestion algorithm (fasted algo according to this excellent research from @kdrag0n found here )
- include bbrv2 from google, more info here
- Enable support for TTL spoofing
- Include LRNG, see here and here for more info, bump to v45 with 3.0.0
- important patches from kernel/common for 5.10 (here are more details)
- CleanSlate Features from @tbalden, big applause here! (s2s, notification booster, battery saver, flashlight notifications. Please note: cleanslate features that work otherwise with rooted devices like kadaway (adblocking) are not implemented on this kernel since I´m running rooted)
- dirty pipe exploit fixed
- supports direct usb access for hi-res playback over USB-C DACs
- improve ZRAM usage
- reduce overhead
- improve performance and efficiency by properly wiring up pixel_sched with teo util awareness (thanks @ada12 for spotting this!)
- update to cpuset/cgroup subsystem (speeds up camera launches, device unlocks etc as cpusets are switched on those conditions, patches reduce overhead in those conditions)
- flashing the kernel will preserve root
Various Optimizations:
- update several drivers to use power efficient workingqueues (for example wlan driver)
- kernfs: use buffer from the stack space
- printk: use buffer from the stack space
- kthread: use buffer from the stack space
- bpf: avoid dynamic memory allocation for small value buffers
- binder: Reserve caches for small, high-frequency memory allocations
- kernfs: use kmem_cache pool for struct kernfs_open_node/file
- cgroup: use kmem_cache pool for struct cgrp_cset_link
- f2fs: reduce timeout for uncongestion
- f2fs: Demote GC thread to idle scheduler class
- f2fs: set ioprio of GC kthread to idle
- mm: vmstat: use power efficient workingqueues
Wakelock Blocker:
- advanced wakelock blocker with the ability to block any wakelocks (dangerous, use with caution)
- please read [URL="https://arstechnica.com/gadgets/2018/08/p-is-for-power-how-google-tests-tracks-and-improves-android-battery-life/"]this for further info
AK3 Helper Module:
- restrict little cluster to 1,19ghz mid cluster to 1,19ghz and big cluster to 1,1ghz during screen off, to reduce battery usage for example during music playback
- only use little cores during screen off/device suspend
- tie pelt multiplier into the powerhal (more info here)
- prevent frequency spikes caused by small transient tasks during idle operation (more info here)
- boost scheduler using the pelt multiplier during fingerprint unlock operation
- setup and control PMU limiter via powerhal (more info here)
- dynamically adjust target load for memory interface during interaction
- boost memory interface controller during interaction (decreased missed frames, improved soc efficiency according to google docs)
DOWNLOAD:
Download is always located in this folder:
4.2.0, 4.3.0, 4.4.0, 4.4.1, 4.4.2 are attached to the release posts linked below as AFH is wonky at the moment.
Downloads for : -Android- Generic Device/Other | AndroidFileHost.com | Download GApps, Roms, Kernels, Themes, Firmware and more. Free file hosting for all Android developers.
Download GApps, Roms, Kernels, Themes...www.androidfilehost.com
Changelog:
Android 12.0.0
1.0.0 Initial Release
1.0.2 https://forum.xda-developers.com/t/...r-pixel-6-pro-aka-raven.4358435/post-85910621
1.0.5 https://forum.xda-developers.com/t/...r-pixel-6-pro-aka-raven.4358435/post-85924419
1.3.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-85976139
1.4.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86109665
1.5.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86259863
1.7.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86390563
1.8.4 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86541727
Android 12.1.0 Stable (March feature drop and more recent)
2.0.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86617873
2.0.1 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86637233
2.1.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86695911
2.3.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86821331
2.4.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86834981
Android 12.1.0 Stable (June feature drop and more recent)
3.0.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86992705
3.0.1 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86996237
3.0.17 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87127695
Android 13.0.0 Stable (not QPR beta!)
4.1.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87290247
4.1.6 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87399635
4.2.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87524609
4.3.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87697425
4.4.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87823333
4.4.1 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-87944879
4.4.2 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88118201
Raviantha 1.0.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88316223
Raviantah 1.0.2 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88399941
Raviantah 1.1.0 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88645115
Raviantah 1.1.2 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88719665
Raviantah 1.1.3 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-88847787
Raviantah 1.1.5 https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-89041877
Android 12L QPR Beta - Deprecated
Build for Android 12 QPR Beta: https://forum.xda-developers.com/t/...pixel-6-pro-aka-raviole.4358435/post-86857033
Requirements
- the kernel is made for the stock firmware provided by Google, pay attention to flash a kernel release matching the firmware (flashing on custom roms might work, but you may need workarounds!)
- unlocked Bootloader
- USB-Debugging in developer options enabled
- latest adb and fastboot binaries
- working adb and fastboot environment so you can flash back to stock in case something goes wrong
- working magisk environment (a device rooted with latest magisk stable in case you want to be absolutely safe)
- IMPORTANT: Unrelated to the kernel, but update both slots of your phone to A13! (take a look here)
How to flash the Kernel:
1a. Make sure you tick all the requirements above
1. Download the correct kernel.zip depending on your device (Pixel 6 = oriole || Pixel 6 Pro = raven)
2. Flash the correct kernel.zip via EXKM, FKM or kernel flasher. Root will be preserved. The AK3 magisk helper module will be automatically installed during flashing the kernel.zip and be present on next reboot.
Do not remove or disable the AK3 Magisk Helper Module otherwise the device will bootloop.
3. Reboot and profit.
Manual installation is no longer supported starting with release 3.0.0, as there´s a free open-source option to flash kernel.zips now.
Instead use the free kernel flasher, which can be found here.
Manual installation without relying on paid apps like fkm/exkm:
Please have a look at the linked post.
Donations:
Donations are not mandatory but very welcome if you want to support development or just buy me a coffee/tea/beer
If you like my work: http://paypal.me/freak07
Credits:
@osm0sis for all his work on AK3.
@tbalden for being the best HTC, Pixel, OnePlus and Asus wingman!
@capntrips for all his work on the pixel 6!
@LeeDroid and @mwilky for their awesome roms and work I used on multiple devices!
@Captain_Throwback for all the mentoring and guidance!
@Eliminater74 for bringing me into the game and the Inspiration
@nathanchance for his upstream guidance and assistance
@RenderBroken for helping me out
@flar2 for all his work
@joshuous for all the help he provided to me in the past!
@arter97 for giving me advice
@kdrag0n for his help and advices!
@topjohnwu for magisk and his entire work!
Source Code: https://github.com/freak0744Update to 4.1.0
Hey guys and girls,
I hope everyone started into a good week. Here´s the next release. It´s for stable Android 13.
Thanks to Google releasing the kernel source for the previews and the betas I´m able to push this update out very quickly. As in the past, the code didn´t change between last beta and stable release.
There are again a lot of changes in this release. I´ll try to keep the release post short as I don´t have that much time lately.
FHD/1080P Support for Pixel 6 Pro
The biggest change is FHD support for the Pixel 6 Pro. If you follow twitter you might have seen this tweet from @MishaalRahman.
Instead of using the display driver that´s supposedly for the Pixel 7 Pro, FHD support was added to the Pixel 6 Pro display driver. There were a few obstacles to make it run properly on the Pixel 6 Pro, but I got it working nicely so far. If anyone has more experience than me regarding panel timings, display drivers etc, feel free to push any improvement as a pull request to my github or point me towards any improvement.
As a result you can now select 1080p resolution from settings after flashing the kernel. Dynamic refresh rate works, brightness scaling works, no tints, colour shifts or contrast issues either. AOD has a 1080p Low-Power timing as well.
You´ll find a few more infos with a short video on my tweet here:
It´s perfectly usable on a daily basis so far. I ran it for a few days without issues on my end. While the advantage might be debatable (saving battery, less load on GPU, still needing to drive the same amount of pixels in the end even on lower resolution, etc etc) having options is nice and this is why I decided to ship it.
Apps need to redraw after switching resolution, sometimes 1080p on big display size selected in settings the UI looks a bit sketchy. So I think Google is still working on that.
There´s however one bug I found so far that makes me believe this is still very much a WIP from google. If having the "show current refresh rate" option from dev settings enabled while switching resolutions, the display will black out and a restart needs to be forced by keeping the power button pressed or using adb interface to restart the phone. This is not due to the kernel, but display settings in framework getting scrambled as it´s not yet implemented 100% on googles end. So be warned.
MM Subsystem Rework
MM subsystem was completely reworked including many improvements from linux-mainline. During this MGLRU was also reworked a bit and works better now. I´ll include links to a few of the improvements/patchsets in hide-tags below, if you´re interested beyond that please check out my github.
links:
Additionally tie in a few of the MM changes into the powerhal. For example Proactive compaction is more aggressive during screen-off/device suspended operations to improve long term-performance.
Other changes:
Also tune the powerhal and implement all A13 changes, according to the changes that were already present on A12.
Latest changes from f2fs-stable are included, which include several bugfixes and small improvements.
Binder improvments/fixes, scheduler improvements from kernel/common, performance for exfat formatted storage device improved (niche use case, but still nice) and other little improvements.
For other changes and details please take a look at github.
I wish everyone a nice day.
If you´re one of the unfortunate ones that suffer from the device is corrupt bug on pixel 6 series please take a look at the FAQ at the beginning of this thread it contains a solution. The issue is probably caused by a bug that affects pixel 6 devices and has nothing to do with magisk or a kernel, it just happens to get triggered when using any of those.
Changelog:
- Rebase kernel fully on A13 trees
- Linux-Stable bumped to 5.10.136
- FHD/1080p support for Pixel 6 Pro
- all previous features and improvements kept intact
- bump f2fs-stable to latest available
- rework mm subsystem (check git for more details)
- scheduler improvements
- binder improvements from kernel/common
- improve exfat performance (if someones uses exfat formatted devices)
- loads of other changes from kernel/common
- update powerhal to account for a13 changes and port existing changes over
- loads of other changes, please check github
Download:
Downloads for : -Android- Generic Device/Other | AndroidFileHost.com | Download GApps, Roms, Kernels, Themes, Firmware and more. Free file hosting for all Android developers.
Download GApps, Roms, Kernels, Themes...
If you´re coming from another kernel restore stock boot.img, dtbo.img, vendor_boot.img and vendor_dlkm.img before flashing. Thank you.
I wish everybody a great day/evening!
Have fun, enjoy the kernel and your phone.
If you like my work please consider a donation.
Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea: http://paypal.me/freak0743Update to 4.2.0
Hey guys and girls,
I hope everyone started well in the new week. Here´s the next release and it´s a rather big one with lots of under the hood improvements.
We already had all the changes in from the October security patch release released, due to merging linux-stable stable and kernel/common in advance.
The kernel is now at 5.10.146 way ahead of the stock kernel. To further emphasize the importance of this. About 90% of kernel security issues are solved in linux stable. While I didn´t check the actual number myself, I´d have estimated about the same (80-90%) before actually reading the slides from @arter97 presentation.
What also needs to be kept in mind is that a big part of those security issues are resolved in linux-stable sometimes months ago before those patches end up in a monthly security patch. Additionally to that the security patches are about 3 months behind the discovery of those vulnerabilities.
Amongst linux-stable upstream there are a few other not minor updates in this kernel.
Clang
The kernel is now compiled with the latest prebuilt Clang from Google. This was quite a journey as this is a pretty big update to clang. This is quite experimental to be on googles side of a "bleeding" edge compiler, but after fixing several issues that originated from the new compiler it ran stable for over 2 weeks.
There´s a potential for CFI failures that originates from that new Clang rather than a "real attack", due to the changes in clang.
Short reminder what CFI actually does: Control flow integrity (CFI) is a security mechanism that disallows changes to the original control flow graph of a compiled binary, making it significantly harder to perform such attacks.
A typical crash (that´s not wanted and originates from compiler changes rather than an actual attack, which is already resolved of course ) would look like the following: Open camera app, due to compiler changes CFI is accidentally tripped every time this code is executed.
I think we catched all of these newly CFI failures and everything is nice and stable. In case you discover such a behaviour please send me the contents of sys/fs/pstore, once the phone booted back up.
There´s always the possibility of a "real" attack in which CFI will crash the phone, before the attacker can compromise the phone. That´s why keeping subsystems updated is important.
Powerhal
The powerhal was retuned due to changes to the scheduler introduced. It should work even better now, regarding efficiency and performance. Of course I try to tune it also to my personal needs, while trying to keep it working for all workloads. The changes are not drastic, so please don´t post after several hours you see drastic differences.
Other improvements
Several other improvements from kernel/common (for higher branches than 5.10) and linux-main were backported to this branch so we can benefit from those improvements. For details please check my git.
I´d like to write all of this with more detail, but at the moment I lack the time to do so.
Kernel is compiled for stable A13, not A13 QPR Beta!
I wish everyone a nice day.
If you´re one of the unfortunate ones that suffer from the device is corrupt bug on pixel 6 series please take a look at the FAQ at the beginning of this thread it contains a solution. The issue is probably caused by a bug that affects pixel 6 devices and has nothing to do with magisk or a kernel, it just happens to get triggered when using any of those.
Changelog:
- Linux-Stable bumped to 5.10.146
- kernel is compiled with latest prebuilt google clang 15.0.2
- improvements from linux-mainline
- locking subsystem
- memory management
- more details please check github
- updates from kernel/common to several subsystems
- tweak powerhal for improved performance/efficiency
Download:
Attached to release post as AFH is currently down.
I´ll push to AFH once it´s back up.
Downloads for : -Android- Generic Device/Other | AndroidFileHost.com | Download GApps, Roms, Kernels, Themes, Firmware and more. Free file hosting for all Android developers.
Download GApps, Roms, Kernels, Themes...
If you´re coming from another kernel restore stock boot.img, dtbo.img, vendor_boot.img and vendor_dlkm.img before flashing. Thank you.
I wish everybody a great day/evening!
Have fun, enjoy the kernel and your phone.
If you like my work please consider a donation.
Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea: http://paypal.me/freak0737Update to 1.8.4
Hey guys and girls,
So here´s the next update. It´s kind of an off schedule update, as I planned to update the kernel with the next security update/feature drop.
But in the light of recent events regarding the new exploit called "Dirty Pipe" (more info here), which is similar to the "Dirty Cow" exploit from a while ago, but easier to exploit this time, I decided to release an update ahead of schedule.
This exploit was fixed in linux-stable 5.10.102, as opposed to a single commit in AKC (android kernel common, commit here). This shows once more why merging linux-stable is beneficial as explained in detail in the OP.
Since one of the key aspects of this kernel is security and staying on par with upstream (which often fixes exploits way ahead of android security bulletin updates, even before an exploit is even known or fixed via a patch on the security bulletin) I decided to release this update as quickly as possible, so this exploit is fixed on devices running this kernel.
Several other notable improvements and changes in this release:
Bring in scheduler updates from Android 13 Developer Preview, which aim at improving task placement. (adjust powerhal accordingly)
BFQ IO-Sched is now on par with linux-mainline.
Several fixes to mm subsystem, f2fs and others.
Several other improvements are included as well. More details in the changelog.
Download is below.
Updated instructions in the OP!
Changelog:
- linux-stable 5.10.103
- contains fix for the dirty pipe exploit
- built with clang 14.0.2 prebuilt by google
- improvments from kernel/common
- fix memory leaks
- security related patches
- mm improvments
- f2fs fixes
- scheduler fixes
- for details please check github
- built with improvements from A13 Dev Preview to display driver
- other changes please look at my github
Download:
Downloads for : -Android- Generic Device/Other | AndroidFileHost.com | Download GApps, Roms, Kernels, Themes, Firmware and more. Free file hosting for all Android developers.
Download GApps, Roms, Kernels, Themes...
Instructions can be found in the OP! Please follow the instructions to avoid any issues.
If you´re coming from another kernel restore stock boot.img, dtbo.img, vendor_boot.img and vendor_dlkm.img before flashing. Thank you.37Update to 1.7.0
Hey guys and girls,
So here´s the next update. It includes the february security update. Most of the changes brought by the February kernel source drop, were already included in this kernel by merging kernel/common and linux-stable.
Several other notable improvements and changes in this release:
Improve f2fs performance by merging a patchset to prevent writer starvation for the checkpoint thread. This was discussed this month in the f2fs mailing list and is already merged to the kernel/common tree. It´ll improve performance under heavy I/O utilization.
You can find more information following the discussion here.
Necessary backports were brought to the kernel and the platform specific f2fs-implementation was also adjusted.
Latest f2fs-stable was also merged to the kernel.
Update the patchset to prevent frequency spikes caused by small tasks as well. Tie those new changes into the powerhal. (That means users not flashing the kernel.zip, but instead use the manual installation method, which are only a handful from the download count, need to flash the updated magisk helper module. Users that flash the kernel.zip via FKM/EXKM have to just flash and forget)
Several other improvements are included as well. More details in the changelog.
Download is below.
Updated instructions in the OP!
Changelog:
- February Security update merged
- linux-stable 5.10.96
- include latest f2fs-stable
- improvments from kernel/common
- fix memory leaks
- security related patches
- mm improvments
- for details please check github
- introduce unfair f2fs rwsems to prevent writer starvation and improve IO perf
- update patchset to prevent freq spikes caused by small transient tasks (also tie this into powerhal)
- give pelt multiplier power hint for scheduler performance boost during fingerprint unlock
- fuse: give wakeup hints to scheduler to speed up compress/decompress in internal storage (details)
- enable RCU_BOOST (details here), also fix RCU_BOOST behaviour
- update LRNG implementation (thanks to arter97 )
- improvements/fixes for CleanSlate features
- other changes please look at my github
Download:
Downloads for : -Android- Generic Device/Other | AndroidFileHost.com | Download GApps, Roms, Kernels, Themes, Firmware and more. Free file hosting for all Android developers.
Download GApps, Roms, Kernels, Themes...
Instructions can be found in the OP! Please follow the instructions to avoid any issues.
If you´re coming from another kernel restore stock boot.img, dtbo.img, vendor_boot.img and vendor_dlkm.img before flashing. Thank you.
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Development [ROM][13.0_r82][venus][OFFICIAL] Evolution X [09/19/23]- Latest: Manosdocpap
