GROOVYJOSHCLARK
Senior Member
it looped to fastbootd on my pixel 4 XL with official LOS 20 (Android 13) so it didnt work for me
[Kernel][25.09.2023][4.14.315][A12][A13] Kirisakura 9.1.9 for Pixel 4/XL aka FLORAL
- Thread starter Freak07
- Start date
Based on all the reports here it seems while using magisk 24.3 on custom roms it works.
Any higher magisk version breaks.
Why this is I don't know.
It works just fine on stock ROM. I assume it's due to the magisk rewrite and maybe verity.
GROOVYJOSHCLARK
Senior Member
I'm good with it, I know it keeps changing with Android, I keep watching and testing. Its all good
Pixel 4 和 Pixel 4 XL 的 Kirisakura 内核
大家好，
在 Pixel 3/XL 论坛上上升到最流行的内核之后，这里是 Pixel 4 (FLAME) 和 Pixel 4 XL (CORAL) 的 Kirisakura-Kernel，以及 FLORAL。
Kirisakura - Kernel 旨在为设备带来一些有益的功能，同时确保出色的性能和流畅度，让您安全度过一天！
内核旨在保持大部分子系统更新，远远领先于库存内核，从而提高安全性、稳定性和性能！
这包括 Linux-Stable、CAF-Upstream、F2FS-Mainline 和 kernel/common。
如果这让您感到好奇，请阅读有关 linux-stable 及其重要性的信息。每个子系统的稳定过程并不相同，但总体思路、经验法则和好处也适用于其他子系统。
主要特点：
- 基于谷歌最新的内核源代码，内核专为 Android 13 打造
- Linux-Stable-Upstream包含在最新的 4.14.302 中
- CAF-Upstream 通常基于 sm8150 的最新标签之一
- 包括来自内核/通用的所有重要修复/改进
- 使用来自 Google prebuilts 的最新 Clang 16.0.2 编译并使用 -O3 优化构建
- F2FS 实现已更新到由 Jaegeuk Kim 维护的kernel/common和kernel.org的最新状态。
- devfreq 从 5.4 向后移植（sd 888 qcom 内核基础）
- 包含 Safety Net 补丁 -> 内核通过 Safety Net（硬件证明与这些内核补丁无关）
- 闪烁内核将保留 root 权限！
- 经过测试可在自定义 ROM 上工作
- 可在有根系统上通过 EXKM 和 FKM 刷写！
- 从谷歌删除大量的内存管理日志
- 删除了 nolog 用法，从内核中删除了 rtb 日志记录
- 从内核中删除 selinux 审计以降低开销
- 从内核中删除 IPC 日志记录
- 引入 kmalloc 可回收缓存以改进内存管理
- AnyKernel3 由 @osm0sis 提供支持（非常感谢！）
EAS相关功能：
- CleanSlate 选项可动态控制 powerhal 的频率提升和计划提升
- 对任务放置的小改进
- 从内核/通用到 EAS 的修复
- Pixel 5 的改进
CPU相关特性：
-默认启用节能工作队列（在 EXKM 中可切换）
在这里阅读：https ://lwn.net/Articles/731052/
这总体上补充了 EAS
- 将各种驱动程序（WLAN、MM、音频、充电器、电源、热、glink 等）更改为用户节能工作队列。这应该与 EAS 结合使用
- 包括来自 CAF 的 cpuidle 补丁
- 主线的 s2idle-flow 改进
- 提高音乐播放效率
- arm64：lse：预取操作数以加速原子操作
文件系统相关特性：
- 包括在f2fs stable git上发现的最新 f2fs 更改
- 包含 @arter97 的快速 GC（最好阅读此处链接的提交说明。我比较了 stock google f2fs、上游 f2fs 和 f2fs 上的 GC 与快速 GC。快速 GC 是最有效的，然后是上游的 f2fs。）
GPU相关特性：
- KCAL 控制各种 RGB 相关显示配置（RGB、色调、饱和度等 -> 可通过 CleanSlate Config App 访问）
- 增加降低最低亮度的能力
- 添加高亮度模式 (HBM)
- 将 GPU 驱动程序更新到最新的 CAF 状态
- 提高 GPU 性能（整体更流畅的体验）
- 减少渲染静态图像时的功耗
- 启用 SD855+ GPU 频率作为可选功能
CleanSlate 的 UI/UX/可用性相关功能：
- @tbalden制作的 CleanSlate 功能
- 使用CleanSlate-Thread中的 CleanSlate-Apps 调整所有 CleanSlate 功能（如果您从 CleanSlate 功能中获利，请确保在 Play-Store 上购买高级版本以支持
@tbalden
- 不包括以任何方式需要许可 selinux 的 CleanSlate 选项，因为它们可以在有根环境中轻松实现，并且该内核不打算在无根环境下使用（广告拦截、道具欺骗等）
- 手电筒通知/来电闪烁
- 振动通知提醒
- 扫一扫进入睡眠触摸屏手势 - 高度可定制
- 双击 Sweep2Sleep 的区域手势 - 下拉 android 通知区域的新方法
- 面朝下屏幕关闭 - 新手势，例如方便地与“翻转到嘘”一起使用以关闭屏幕
网络相关功能：
- Wireguard 支持（详细信息）
内存相关特性：
- 使用最新更改更新 PSI 监视器
- 使用来自最新主线的补丁改进了 mm
- 主线的各种其他变化
- 包括 zstd 和 lz0-rle 作为 ZRAM 算法的选项（lz4 可能是最好的，所以只有当你知道为什么和你在做什么时才改变它）
- 允许 swappiness 值高达 200
- 反向移植以启用 CONFIG_HAVE_MOVE_PMD（参见此处）
- 反向移植以启用 CONFIG_HAVE_MOVE_PUD （请参阅此处） （由于它破坏了音频驱动程序而暂时恢复）
- 改进 ZRAM 写回（感谢 @arter97）
- 通过 psi 禁用每个 cgroup 跟踪以减少开销
安全相关功能：
- CFI和 LTO都保持完好，用于保持 Google 为我们实施的额外安全性！
-从 3.9.0 开始使用ThinLTO
-影子调用堆栈
调谐 PowerHal
- 允许内核在没有交互发生时以最低频率空闲
- 在没有交互的情况下增加 swappiness 以支持交换内存，否则放宽 swappiness
- 当使用面部解锁时，调度程序相机处理到大集群和主要核心
- 使用相机时调整强大的行为
其他特点：
TCP 拥塞算法：
- 启用高级算法
- 包括新的 bbr2
唤醒锁拦截器：
- 高级唤醒锁拦截器，能够阻止任何唤醒锁（危险，谨慎使用）
- 请阅读 [URL="https://arstechnica.com/gadgets/2018/08/p-is-for-power-how-google-tests-tracks-and-improves-android-battery-life/"] 这个了解更多信息
其他特性：
- 禁用日志记录以使内核在各个地方更轻量级（包括 mm、vma、gpu、ipa 等）
- 从内核中删除 VLA（更多信息）
- 添加对蒸汽控制器的支持
- 添加对任天堂开关控制器的支持
- 合并 PM/Wakeup 驱动程序的上游解决方案，减少不必要的垃圾邮件并改善休眠行为
- 合并来自 google gerrit 的 freezer v2 backport（开发者选项“暂停缓存应用程序的执行”是必需的）
“不可见”但可察觉改进的功能部分：
- 更新活页夹部分（负责进程间通信）
- 更新了 sdcardfs；在这里阅读：
要求
- 解锁引导加载程序
- 启用开发者选项中的 USB 调试
- 最新的 adb 和 fastboot 二进制文件
- 工作 adb 和 fastboot 环境
- 工作 magisk 环境
- 最新的库存 rom（自定义 rom 可能有问题，一些用户报告说使用 magisk 24.3 而不是最新的 root 时成功）
如何刷入内核：
1. 将 kernel.zip 下载到您的设备
1a. 虽然在来自另一个自定义内核时可能并非总是有必要：您可能想要恢复原厂 boot.img 和原厂 dtbo.img，它们都可以在出厂映像中找到。如果您使用的是自定义 ROM，只需对 ROM 进行脏刷。使用 magisk 重新根目录并可选择安装 twrp.zip（如果存在）。在报告问题之前，请确保您这样做了！谢谢！
1b. 如果您过去使用过 SQLITE3 Magisk 模块和 GPay Fix Magisk 模块，请查看这篇文章：点我
您只需要执行 2a 或 2b
2a. 如果 TWRP 可用于此设备和特定的 android 版本，请引导至 TWRP 并刷新我的 kernel.zip。根将被保留！
或者
2b. EX 内核管理器或 FKM 应用程序中的 Flash 内核 zip。根将被保留！如果内核管理器尚未更新以在特定的 Android 版本上工作，您需要等到它更新或使用另一个。
4.重启盈利！
下载：
下载始终位于此文件夹中或附加到发布帖子，以防它现在在 AFH 中。
https://www.androidfilehost.com/?w=files&flid=301179
另请检查发布帖子以获取下载链接或附加文件。AFH最近经常掉。
重要：下载后阅读
刷完内核请看第二篇！
变更日志：
Android 10/Q 内核
1.0.0 初始版本
1.0.1 https://forum.xda-developers.com/showpost.php?p=80712545&postcount=51
1.0.3 https://forum.xda-developers.com/showpost.php?p=80791393&postcount=181
2.0.0 https://forum.xda-developers.com/showpost.php?p=81069625&postcount=341
2.1.0 https://forum.xda-developers.com/showpost.php?p=81168297&postcount=424
2.3.0 https://forum.xda-developers.com/showpost.php?p=81244627&postcount=491
2.3.4 https://forum.xda-developers.com/showpost.php?p=81311861&postcount=561
2.6.0 https://forum.xda-developers.com/showpost.php?p=81408591&postcount=611
2.9.0 https://forum.xda-developers.com/showpost.php?p=81527369&postcount=692
2.9.2 https://forum.xda-developers.com/showpost.php?p=81575075&postcount=702
3.1.0 https://forum.xda-developers.com/showpost.php?p=81625099&postcount=725
3.2.0 https://forum.xda-developers.com/showpost.php?p=81679343&postcount=761
3.9.0 https://forum.xda-developers.com/showpost.php?p=81926617&postcount=802
3.9.1 https://forum.xda-developers.com/showpost.php?p=81943269&postcount=824
4.2.0 https://forum.xda-developers.com/showpost.php?p=82189985&postcount=851
4.5.0 https://forum.xda-developers.com/showpost.php?p=82485339&postcount=892
4.5.6 https://forum.xda-developers.com/showpost.php?p=82562029&postcount=941
4.7.5 https://forum.xda-developers.com/showpost.php?p=82725499&postcount=986
5.0.0 https://forum.xda-developers.com/showpost.php?p=83019609&postcount=1022
5.2.2 https://forum.xda-developers.com/showpost.php?p=83206123&postcount=1066
5.2.6 https://forum.xda-developers.com/showpost.php?p=83387505&postcount=1078
安卓 11/R 内核
6.0.0 https://forum.xda-developers.com/showpost.php?p=83476821&postcount=1092
6.1.3 https://forum.xda-developers.com/showpost.php?p=83649491&postcount=1131
6.2.4 https://forum.xda-developers.com/showpost.php?p=83849179&postcount=1143
6.6.0 https://forum.xda-developers.com/t/kernel-03-11-2020-4-14-203-kirisakura-6-2-4-for-pixel-4-xl-aka-floral .3992213/后84068177
6.6.6 https://forum.xda-developers.com/t/kernel-04-01-2021-4-14-213-kirisakura-6-6-6-for-pixel-4-xl-aka-floral .3992213/后84227741
6.8.2 https://forum.xda-developers.com/t/kernel-04-01-2021-4-14-213-kirisakura-6-6-6-for-pixel-4-xl-aka-floral .3992213/后84408147
7.1.0 https://forum.xda-developers.com/t/kernel-01-02-2021-4-14-218-kirisakura-6-8-2-for-pixel-4-xl-aka-floral .3992213/后84588667
7.1.1 https://forum.xda-developers.com/t/kernel-05-03-2021-4-14-222-kirisakura-7-1-1-for-pixel-4-xl-aka-floral .3992213/后84603881
7.2.3 https://forum.xda-developers.com/t/kernel-05-03-2021-4-14-222-kirisakura-7-1-1-for-pixel-4-xl-aka-floral .3992213/后84747379
7.4.0 https://forum.xda-developers.com/t/kernel-30-03-2021-4-14-227-kirisakura-7-2-3-for-pixel-4-xl-aka-floral .3992213/post-84900715
7.4.1 https://forum.xda-developers.com/t/kernel-25-04-2021-4-14-231-kirisakura-7-4-0-for-pixel-4-xl-aka-floral .3992213/后84951399
7.4.2 https://forum.xda-developers.com/t/kernel-04-05-2021-4-14-231-a11-a12-preview-kirisakura-7-4-1-for-pixel-4 -xl-aka-floral.3992213/post-85000553
7.4.3 https://forum.xda-developers.com/t/kernel-12-05-2021-4-14-232-a11-a12-preview-kirisakura-7-4-2-for-pixel-4 -xl-aka-floral.3992213/post-85079523
7.4.4 https://forum.xda-developers.com/t/kernel-25-05-2021-4-14-232-a11-a12-preview-kirisakura-7-4-3-for-pixel-4 -xl-aka-floral.3992213/post-85155405
7.9.0 https://forum.xda-developers.com/t/kernel-09-06-2021-4-14-235-a11-a12-beta-1-kirisakura-7-4-4-for-pixel -4-xl-aka-floral.3992213/post-85298631
7.9.1 https://forum.xda-developers.com/t/kernel-08-07-2021-4-14-238-a11-a12-beta-2-kirisakura-7-9-0-for-pixel -4-xl-aka-floral.3992213/post-85424575
7.9.2 https://forum.xda-developers.com/t/kernel-03-08-2021-4-14-241-a11-a12-beta-3-kirisakura-7-9-1-for-pixel -4-xl-aka-floral.3992213/post-85473277
7.9.3 https://forum.xda-developers.com/t/kernel-13-08-2021-4-14-243-a11-a12-beta-4-kirisakura-7-9-2-for-pixel -4-xl-aka-floral.3992213/post-85674963
安卓 12
8.0.0 https://forum.xda-developers.com/t/kernel-23-09-2021-4-14-246-a12-kirisakura-7-9-3-for-pixel-4-xl-aka -花香.3992213/post-86063673
8.0.3 https://forum.xda-developers.com/t/kernel-08-12-2021-4-14-256-a12-kirisakura-8-0-0-for-pixel-4-xl-aka -花香.3992213/post-86236075
8.0.4 https://forum.xda-developers.com/t/kernel-10-01-2022-4-14-261-a12-kirisakura-8-0-3-for-pixel-4-xl-aka -花香.3992213/post-86413329
8.0.5 https://forum.xda-developers.com/t/kernel-12-02-2022-4-14-265-a12-kirisakura-8-0-4-for-pixel-4-xl-aka -花香.3992213/post-86550055
8.2.0 https://forum.xda-developers.com/t/kernel-09-03-2022-4-14-265-a12-a13-kirisakura-8-0-5-for-pixel-4-xl -aka-floral.3992213/post-86843221
8.2.2 https://forum.xda-developers.com/t/kernel-04-05-2022-4-14-274-a12-a13-kirisakura-8-2-0-for-pixel-4-xl -aka-floral.3992213/post-87006201
安卓 13
9.0.0 https://forum.xda-developers.com/t/kernel-10-06-2022-4-14-282-a12-a13-kirisakura-8-2-2-for-pixel-4-xl -aka-floral.3992213/post-87295655
9.0.2 https://forum.xda-developers.com/t/kernel-17-08-2022-4-14-290-a12-a13-kirisakura-9-0-0-for-pixel-4-xl -aka-floral.3992213/post-87532941
9.1.0 https://forum.xda-developers.com/t/kernel-06-10-2022-4-14-295-a12-a13-kirisakura-9-0-2-for-pixel-4-xl -aka-floral.3992213/post-87760941
9.1.1 https://forum.xda-developers.com/t/kernel-06-10-2022-4-14-299-a12-a13-kirisakura-9-1-0-for-pixel-4-xl -aka-floral.3992213/post-87868847
捐款：
捐款不是强制性的，但如果您想支持开发或只是请我喝咖啡，则非常欢迎
如果你喜欢我的作品： http: //paypal.me/freak07
学分：
@osm0sis 他所有的工作，包括 ak3 安装程序！
@tbalden 成为最好的 HTC 僚机！
@LeeDroid 非常棒的 rom！
@Captain_Throwback 所有的指导和指导！
@Eliminater74 将我带入游戏和灵感
@nathanchance 的上游指导和帮助
@RenderBroken 感谢他的所有工作以及我可以从他身上学到的东西
@flar2 他所有的工作
@joshuous 感谢他过去给我的所有帮助！
@topjohnwu 用于 magisk！
@arter97，@kdrag0n
帮我好几次！
XDA:DevDB 信息
Kirisakura Kernel，谷歌 Pixel 4 XL 的内核
贡献者
怪胎07
源代码： https ://github.com/freak07/FLORAL
内核特殊功能：
版本信息
状态：稳定
创建于2019-10-27
最后更新2020-11-03
嗨，你好，这是为什么？不小心又刷了一遍，呵呵！
Mod translation: Hi, hello, why is this? Accidentally brushed it again, huh, huh!
Attachments
Last edited by a moderator:
Hello! Sometimes after reboot /sdcard is not decrypted and i can't save or see any files, while other part of /data is decrypted. Second reboot fixes this issue, but anyway this is annoying. Is there any fix? Using Pixel 4 & A13 TRA4.221021.001.A1 with Magisk
Warning: If you're using stock 13 (TP1A.221005.002) and 9.1.1 kernel want to turned back use stock kernel.
DO NOT DIRECTLY FLASH BOOT. IMG ONLY, IT WILL BROKE YOU'RE TOUCHSCREEN FUNCTION.
If you do, the only thing you can do is control your phone by mouse and flash 9.1.1 kernel. Or just flash factory image.
DO NOT DIRECTLY FLASH BOOT. IMG ONLY, IT WILL BROKE YOU'RE TOUCHSCREEN FUNCTION.
If you do, the only thing you can do is control your phone by mouse and flash 9.1.1 kernel. Or just flash factory image.
That happens if a boot.img extracted from a non matching factory image or firmware is flashed, as kernel will not match Version of vendor kernel modules and loading these modules (touch driver) will fail.
the steps provided in the FAQ to restore to stock will work, if the images that are matching your exact firmware version are flashed.
Flashing factory image will flash all partitions so there can't be a mismatch, that cleared it up for you.
I encountered SELinux always being set to Permissive after reboot. IK that it can be set to Enforced after boot with
setenforce 1, but how can I make it set Enforced SELinux automatically?
This kernel does not set it to permissive after boot.
You´re likely using some app, mod or magisk module that sets it to permissive.
Issues:Update 9.1.1
Hey guys and girls,
So here´s the next release. It includes the changes mentioned in the changelog below.
I wish everybody a great day.
Enjoy the device and the kernel, because I certainly do
Before troubleshooting and reporting any issues make sure to not use any additional mods, scripts or tweaks. This includes all mods and magisk modules, even the tiniest modification you did.
Detailed changelog below.
Changelog:
- merge december security fixes and qpr updates from still supported p4a
- Linux-Stable 4.14.302
- bump clang to prebuilt clang 16.0.2 from google
- other changes can be found on github
Magisk Module:
- After flashing the kernel, you will see a module called AK3 Helper Module in Magisk Manager. This will fine tune the power-hal. Do not delete it!
Have fun flashing and enjoy your device with latest linux-stable
Why is linux-stable beneficial?
I wish you all a nice day/evening!
Download is below
Download:
Attached to this post as AFH is not working correctly.
How to flash the Kernel:
1. Make sure you are rooted, are using the latest magisk suited for your OS version and a kernel manager capable of flashing a zip is installed. If available you'll can use TWRP as well. Download the kernel.zip to your device.
1a. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past (prior to 2.0.0) look at this post: click me
2. Flash kernel zip in via your favorite method. Kernel Managers and Recoveries need to be updated to work with a specific Android Version. It's your job to ensure compatibility!Root will be preserved! (Make sure to be on the latest firmware the kernel is made for)
3. Reboot and profit! Before reporting any issues make sure to read the first three posts of this thread!
Instructions can be found in the OP too!
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/freak07
Media playback is choppy with volume keys not working during playback.
Camera app is slow to switch from front to back
Last edited:
Can't reproduce either of those issues.
Volume keys only not working during playback sounds like a framework issue or an app messing up button interface.
Honestly in my opinion everybody should be using magisk delta. It has a range of features that aren't included in regular stable magisk and it gets updates almost daily. They're fixes for F2FS tuning, zygote issues, a completely different implementation of magisk hide which I haven't ever needed to use so far, and the boot loop protection function built in. Every rom with a December or January patch that includes the pixel launcher stock is going to start lagging like hell, so if that starts happening after you've installed this kernel, and you didn't use the rom for very long before switching Kernels... Switch launchers. It's affecting every device running Pixel launcher on the latest security patches and stock as well if you're in the beta program and it's extremely f****** frustrating that it hasn't been fixed yet by Google. The phone will run good for a while, and then it'll start getting hot, draining battery quickly and animations will become choppy and get stuck until you reboot. The problem is, especially if you're on the latest beta of Android 13.... Is there is no other launcher that can be used because they're incompatible specifically with this release only. The only way to get a working launcher is to download the AOSP img of the latest beta and use that launcher with quick switch... And then your phone is actually usable again
To clear up any confusion about what I just said, if you run the December patch or the January patch and you're using a custom ROM with Pixel launcher, you can use Mr Sluffys dev build of lawn chair that works with Android 13, or AMR Gamals ported launchers on his telegram channel. If you are using stock, and are on the latest beta, the only launcher that will work is Aosp launcher which you have to extract from the latest ASOP image on googles developer website. If someone else has figured out how to stop the pixel launcher from completely ruining the phones usability on the latest releases.... Please let me know. The main point being though, if you're having graphics issues after flashing the kernel, try switching launchers if you're using pixel launcher.
no new kernel changes it seems, but that´s not really surprising.
but since pixel 4a still gets updates, I can just merge the security updates from there.
when I find time I´ll give the kernel a bump.
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Yes, I use Magisk 24.3 with the Displax Safetynet Fix and it's been working for me for a couple months now.Hi all, has anyone managed to pass Safetynet/Play Integrity? My hope is to be able to use Google Wallet reliably on stock ROM with this kernel
1
Can't you use latest magisk if you're stock on last update ? I've read the previous issues about lastest magisk on custom having issues but not stock.1Update 9.1.9
Hey guys and girls,
So here´s the next release. It includes the changes mentioned in the changelog below.
I wish everybody a great day.
Enjoy the device and the kernel, because I certainly do
Before troubleshooting and reporting any issues make sure to not use any additional mods, scripts or tweaks. This includes all mods and magisk modules, even the tiniest modification you did.
Detailed changelog below.
Please note that you need to use magisk 24.3 for custom roms if you want to be sure the device boots!
Magisk 25 or 26 is not compatible on all custom ROMs. This is not related to the kernel or magisk, it´s how AVB is handled by the custom ROMs. Some work and some don´t.
The kernel is primarily made for the stock firmware.
If someone here wants to step up to fix this issue, feel free to do so. Everything about my kernel is open source.
Changelog:
- merge latest security fixes from sunfish branch
- Linux-Stable 4.14.326
- other changes can be found on github
Magisk Module:
- After flashing the kernel, you will see a module called AK3 Helper Module in Magisk Manager. This will fine tune the power-hal. Do not delete it!
Have fun flashing and enjoy your device with latest linux-stable
Why is linux-stable beneficial?
I wish you all a nice day/evening!
Download is below
Download:
Attached to this post as AFH is not working correctly.
How to flash the Kernel:
1. Make sure you are rooted, are using the latest magisk suited for your OS version and a kernel manager capable of flashing a zip is installed. If available you'll can use TWRP as well. Download the kernel.zip to your device.
1a. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past (prior to 2.0.0) look at this post: click me
2. Flash kernel zip in via your favorite method. Kernel Managers and Recoveries need to be updated to work with a specific Android Version. It's your job to ensure compatibility! Root will be preserved! (Make sure to be on the latest firmware the kernel is made for)
3. Reboot and profit! Before reporting any issues make sure to read the first three posts of this thread!
Instructions can be found in the OP too!
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/freak07 -
85Kirisakura-Kernel for the Pixel 4 and Pixel 4 XL
Hello everyone,
After rising to the most popular kernel on the Pixel 3/XL forums, here is Kirisakura-Kernel for the Pixel 4 (FLAME) and Pixel 4 XL (CORAL), together FLORAL.
Kirisakura - Kernel is designed to bring a handful of beneficial features to the device, while ensuring excellent performance and smoothness to get you safely through the day!
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, CAF-Upstream, F2FS-Mainline 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.
Main Features:
- Based on latest kernel sources from Google, Kernel is made for Android 13
- Linux-Stable-Upstream included to latest 4.14.326
- CAF-Upstream usually based on one of the latest tags for sm8150
- include all important fixes/improvements from kernel/common
- compiled with latest Clang 16.0.2 from Google prebuilts and built with -O3 optimizations
- F2FS implementation updated to latest state of kernel/common and kernel.org maintained by Jaegeuk Kim.
- devfreq backports from 5.4 (sd 888 qcom kernel base)
- Safety Net patches are included -> Kernel passes Safety Net (hardware attestation is not related to these kernel patches)
- Flashing the kernel will keep root!
- Tested to work on custom ROMs
- Flashable via EXKM and FKM on a rooted system!
- remove extensive Memory Management logging from Google
- removed nolog usage, remove rtb logging from the kernel
- remove selinux auditing from kernel for lower overhead
- remove IPC logging from the kernel
- introduce kmalloc reclaimable caches for improved memory management
- AnyKernel3 powered by @osm0sis (big thanks!)
EAS related features:
- CleanSlate options to dynamically control freq boosting and sched boosting of powerhal
- small improvements to tasks placement
- fixes from kernel/common to EAS
- improvements from Pixel 5
CPU related features:
- Power saving workingqueues enabled by default (toggleable in EXKM)
have a read here: https://lwn.net/Articles/731052/
this complements EAS in general
- Change various drivers (WLAN, MM, audio, charger, power, thermal, glink etc) to user power efficient workingqueues. This should work well in conjunction with EAS
- include cpuidle patches from CAF
- s2idle-flow improvements from mainline
- improve efficiency while music playback
- arm64: lse: Prefetch operands to speed up atomic operations
- improve camera launch time
File System related features:
- Include latest f2fs changes found on f2fs stable git
- Include rapid GC by @arter97 ( best thing is to read the commit description linked here. I compared GC on stock google f2fs, upstreamed f2fs and f2fs with rapid GC. Rapid GC is the most effective, followed by upstreamed f2fs.)
GPU related features:
- KCAL to control various RGB related display configs (RGB, Hue, Saturation etc -> accessible via CleanSlate Config App)
- add ability to reduce minimum brightness
- add high-brightness-mode (HBM)
- Update GPU driver to latest CAF state
- improve GPU performance (overall smoother experience)
- reduce power consumption when rendering static images
- enable of usage of SD855+ GPU frequencies as optional feature
UI/UX/Usability related features from CleanSlate:
- CleanSlate features made by @tbalden
- Adjust all CleanSlate features with the CleanSlate-Apps found in the CleanSlate-Thread (if you profit from the CleanSlate features make sure to buy the premium versions on Play-Store to support
@tbalden
- CleanSlate options that require permissive selinux in any way are not included, as they can be easily achieved otherwise on a rooted environment and this kernel is not intended to be used rootless (adblocking, props spoofing etc.)
- Flashlight Notification/Call blinking
- Vibrating Notification Reminder
- Sweep to Sleep touchscreen gesture - highly customizable
- DoubleTap on Sweep2Sleep's area gestures - new way to pull down android Notification Area
- Face down screen off - new gesture, e.g. conveniently use together with 'flip to shh' to turn screen off
Network related features:
- Wireguard Support (Details)
Memory related features:
- updated PSI monitor with latest changes
- improved mm with patches from latest mainline
- various other changes from mainline
- included zstd and lz0-rle as options for ZRAM-algorithm (lz4 is probably the best all around, so only change it if you know why and what you are doing)
- allow swappiness up to a value of 200
- Backport to enable CONFIG_HAVE_MOVE_PMD (see here)
- Backport to enable CONFIG_HAVE_MOVE_PUD (see here) (reverted for now as it breaks audio driver)
- improvements to ZRAM writeback (thanks @arter97 )
- disable per cgroup tracking via psi to reduce overhead
Security related features:
- CFI and LTO both kept intact and are used to keep additional security Google implemented for us!
- ThinLTO used as of 3.9.0
- Shadow Call Stack
Tuned PowerHal
- allow kernel to idle on lowest frequencies when no interaction is happening
- increase swappiness during periods without interaction to favor swapping memory, relax swappiness otherwise
- scheduler camera processes to the big cluster and prime core when faceunlock is used
- adjust powerhal behaviour when the camera is used
Misc Features:
TCP Congestion Algorithms:
- advanced algorithms enabled
- includes new bbr2
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
Other features:
- disable logging to make the kernel more lightweight in various places (includes mm, vma, gpu, ipa etc)
- remove VLAs from the kernel (more info)
- add support for steam controller
- add support for nintendo switch controller
- merge upstream solution for PM/Wakeup driver, which reduces unnecessary logspam and also improves sleeping behaviour
- merge freezer v2 backport from google gerrit (required for developer option ""suspend execution for cached apps"")
Feature section for the "non visible" but perceptible improvements:
- updated binder section (responsible for interprocess communication)
- updated sdcardfs ; have a read about it here:
Requirements
- unlocked Bootloader
- USB-Debugging in developer options enabled
- latest adb and fastboot binaries
- working adb and fastboot environment
- working magisk environment
- latest stock rom (custom roms can have issue, several users reported success when rooted with magisk 24.3 instead of latest)
How to flash the Kernel:
1. Download the kernel.zip to your device
1a. While it may not be necessary all times when coming from another custom kernel: You may want to restore stock boot.img as well as stock dtbo.img, which can both be found in the factory image. If you´re on a custom rom, simply dirty flash your ROM. Reroot with magisk and optionally install twrp.zip (if existing). Before reporting issues make sure you do that! Thank you!
1b. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past look at this post: click me
You only need to do either 2a OR 2b
2a. If TWRP is available for this device and specific android version, boot to TWRP and flash my kernel.zip. Root will be preserved!
or
2b. Flash kernel zip in EX Kernel Manager or FKM app. Root will be preserved! If a kernel manager is not yet updated to work on a specific Android Version, you need to wait until it is updated or use another one.
4. Reboot and profit!
DOWNLOAD:
Download is located always in this folder or attached to the release post in case it´s now in AFH.
https://www.androidfilehost.com/?w=files&flid=301179
Please also check the release posts for download links or attched files. AFH is often down recently.
Important: Read after Download
Please take a look at the second post after flashing the kernel!
Changelog:
Android 10/ Q Kernels
1.0.0 Initial Release
1.0.1 https://forum.xda-developers.com/showpost.php?p=80712545&postcount=51
1.0.3 https://forum.xda-developers.com/showpost.php?p=80791393&postcount=181
2.0.0 https://forum.xda-developers.com/showpost.php?p=81069625&postcount=341
2.1.0 https://forum.xda-developers.com/showpost.php?p=81168297&postcount=424
2.3.0 https://forum.xda-developers.com/showpost.php?p=81244627&postcount=491
2.3.4 https://forum.xda-developers.com/showpost.php?p=81311861&postcount=561
2.6.0 https://forum.xda-developers.com/showpost.php?p=81408591&postcount=611
2.9.0 https://forum.xda-developers.com/showpost.php?p=81527369&postcount=692
2.9.2 https://forum.xda-developers.com/showpost.php?p=81575075&postcount=702
3.1.0 https://forum.xda-developers.com/showpost.php?p=81625099&postcount=725
3.2.0 https://forum.xda-developers.com/showpost.php?p=81679343&postcount=761
3.9.0 https://forum.xda-developers.com/showpost.php?p=81926617&postcount=802
3.9.1 https://forum.xda-developers.com/showpost.php?p=81943269&postcount=824
4.2.0 https://forum.xda-developers.com/showpost.php?p=82189985&postcount=851
4.5.0 https://forum.xda-developers.com/showpost.php?p=82485339&postcount=892
4.5.6 https://forum.xda-developers.com/showpost.php?p=82562029&postcount=941
4.7.5 https://forum.xda-developers.com/showpost.php?p=82725499&postcount=986
5.0.0 https://forum.xda-developers.com/showpost.php?p=83019609&postcount=1022
5.2.2 https://forum.xda-developers.com/showpost.php?p=83206123&postcount=1066
5.2.6 https://forum.xda-developers.com/showpost.php?p=83387505&postcount=1078
Android 11/ R Kernels
6.0.0 https://forum.xda-developers.com/showpost.php?p=83476821&postcount=1092
6.1.3 https://forum.xda-developers.com/showpost.php?p=83649491&postcount=1131
6.2.4 https://forum.xda-developers.com/showpost.php?p=83849179&postcount=1143
6.6.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84068177
6.6.6 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84227741
6.8.2 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84408147
7.1.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84588667
7.1.1 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84603881
7.2.3 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84747379
7.4.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84900715
7.4.1 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-84951399
7.4.2 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85000553
7.4.3 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85079523
7.4.4 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85155405
7.9.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85298631
7.9.1 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85424575
7.9.2 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85473277
7.9.3 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-85674963
Android 12
8.0.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-86063673
8.0.3 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-86236075
8.0.4 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-86413329
8.0.5 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-86550055
8.2.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-86843221
8.2.2 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-87006201
Android 13
9.0.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-87295655
9.0.2 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-87532941
9.1.0 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-87760941
9.1.1 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-87868847
9.1.4 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-88332237
9.1.6 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-88583047
9.1.9 https://forum.xda-developers.com/t/...r-pixel-4-xl-aka-floral.3992213/post-89045405
Donations:
Donations are not mandatory but very welcome if you want to support development or just buy me a coffee
If you like my work: http://paypal.me/freak07
Credits:
@osm0sis for all his work, including the ak3 installer!
@tbalden for being the best HTC wingman!
@LeeDroid for his awesome roms!
@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 all of his work and the stuff I could learn from him
@flar2 for all his work
@joshuous for all the help he provided to me in the past!
@topjohnwu for magisk!
@arter97 , @kdrag0n for helping me out several times!
XDA:DevDB Information
Kirisakura Kernel, Kernel for the Google Pixel 4 XL
Contributors
Freak07
Source Code: https://github.com/freak07/FLORAL
Kernel Special Features:
Version Information
Status: Stable
Created 2019-10-27
Last Updated 2020-11-0359Update to 2.0.0
Hey guys and girls,
So here´s the update finally. I worked on this kernel in parallel to the initial release I uploaded on XDA, since I started developing for the Pixel 4 XL. Because ultimately the 2.0.0 release is built upon the kernel base I wanted initially, but wasn´t able to create.
This will be a longer post, but have a bit patience and tenacity when reading this post it might be worth it.
A little context so everybody can follow a bit more easily:
Starting with the Pixel 3/XL, the pixel kernels are more close to "CAF" than on previous Google phones. CAF stands for codeaurora-forums, where the development from Qualcomm for our SOC, the SD855, happens.
Usually OEMs get a snapshot of a CAF-Base from Qualcomm, stop updating it, implement own device or company specific drivers/necessary changes and only add minimal changes to the kernel as soon as it is deemed stable.
The CAF-Developers however constantly push updates to their CAF-Base on their git. It´s a lot of work to completely merge all CAF updates into the kernel, but since there are a lot of device and soc specific fixes and improvements it´s very worth it.
Google used a very early snapshot of the CAF-source to base their Pixel 4/XL kernel upon.
So one of my initial goals was to merge a more recent CAF-Base. This proved to be very difficult however. It ended up in so many failed attempts with a non successfully booting phone that I lost count of it and was on the verge of giving up a few times.
I worked on it for weeks, excluding more and more changes, piece by piece, until I finally got the phone to a state, where I was able to pull a log and work in a specific direction.
After that it was just a lot of time, that went into merging and doing tedious work. I took a peek into many corners of the kernel, while fixing all the conflicts and understanding some of the fixes google applied, which were also fixed by CAF at a later stage.
So I tried to always pick the best solution for the problems Google and CAF faced. Sometimes I reverted a fix from Google, sometimes I reverted a fix from Qualcomm and rather picked the Google one.
I understand the kernel a lot better and learned a lot in the last weeks.
The main difficulties I had to fight with, were the fact that Google is the only OEM that uses LTO in conjunction with CFI and ShadowCallStack for increased security. This requires some low-level changes to arm64/kernel, which conflicts with some more recent changes from CAF. These changes were identified and reverted.
The Pixel 3 and Pixel 4 phones are also the only phones, which make use of the Userspace-Low Memory Killer (ULMK) instead of relying on the kernel side low memory killer. Google put a lot of work and thought into this after the Pixel 3 was released. Very exciting work started on the dev previews of Android 10 on the Pixel 3, regarding the ULMK. I tried these changes on a personal Pixel 3 Rom and was in contact with the google dev responsible for it. I like the approach and thought process behind it. Since CAF is still on the kernel space low memory killer, there were more conflicts, which needed to be identified.
Some of these commits were really inconspicuous. That´s the main reason this took a lot of time.
One more point I´d like to describe:
CAF maintains various tags, which can be merged. There´s a regular CAF-Tag for the sd855, where most OEMs base their kernel upon. It´s also very similar to the CAF-Snapshot google received from Qualcomm, just the OEM version instead of the open-source version.
F2FS state is pretty old on this CAF-base (Google did upstream this to a pretty recent state, because the official f2fs-maintainer/developer is employed by google) , as well as other subsystems. Linux-stable upstream is at 4.14.117.
For comparison the Pixel 4 XL stock kernel is still at 4.14.111. Another symptom of the rather not recent CAF-Base Google built the kernel upon.
Now lets get to the sweet stuff
Then there´s a more advanced CAF-Tag/Branch maintained by CAF for the sd855.
Most of the soc specific and other related drivers have way more recent CAF-Upstream patches. F2FS is on the same level as the Pixel 4. Linux-stable upstream is at 4.14.146. Just to give you an idea.
A short summary of how the new base works in comparison to the 1.x.x releases:
1.x.x: Googles Code + necessary changes to compile as a standalone kernel + linux-stable upstream from kernel.org to 4.14.15x + upstreaming of various subsystems + kernel features
2.0.0: Googles Code + necessary changes to compile as a standalone kernel + nextgen CAF base (includes linux-stable to 4.14.146) + regular CAF base for the sd855+ missing linux-stable upstream (up to 4.14.156) + upstreaming of various subsystems + kernel features
Example 1:
As you can see merging that nextgen CAF base brings more than one advantage. It´s tested code from Qualcomm/CAF which includes upstream updates for various subsystems and also linux-stable updates. That means less rooms for errors introduced by me merging thousands of lines of code.
We have linux-stable upstream up to 4.14.146 tested by Qualcomm on the SD855 in the new kernel base. On the initial 1.0.x kernel I merged linux-stable myself all the way from 4.14.111 to 4.14.15x.
That´s just one example but I think it serves as a good way to understand my motivation better.
Even though one can´t see the updated SOC-specific drivers, the kernel runs way better than the 1.0.x release.
Updates include drivers as GPU, CPU, Modem, Bluetooth, basically nearly all drivers.
For example my bluetooth range when connected to my earstudio has significantly increased due to some CAF-Updates!
Example 2:
Just so you all can see how far away we are from the stock kernel now we take a look at the amount of code changes:
Merging the next-gen CAF-tag: 3,171 changed files with 241,690 additions and 23,565 deletions.
Merging the regular SD855 tag on top: 223 changed files with 5,754 additions and 1,852 deletions.
Not all of these changes end up in drivers we actually use, but it´s still a good indicator.
There were many other changes done to the kernel as well. I try to list them in the changelog!
Regarding the freezes some people faced straight after rebooting:
The only issue I could reproduce myself and solve with the help of a tester that was affected by the freezes too, where caused by F2FS-Upstream not working well with the SQlite3 module and the Gpay Fix Module.
So for now I have excluded F2FS-Upstream from my kernel. Judging from my experience with the Pixel 3 XL Google will soon merge these changes by themselves and then even the stock kernel will exhibit this behaviour.
I can´t see anything wrong with the F2FS-Upstream kernel patches so a solution will have to be found anyway when Google merges these changes into the stock kernel.
If you have used the SQLite3 Module and the GPay Fix Module in the past, please follow step 1a from my instructions.
Screen freezes when using HBM in conjunction with AOD and Android Auto are resolved too.
Please keep in mind. I only looked at the issue with the GPay Fix Module, because I saw some courage from @ilal2ielli providing logs and trying to actively help me.
No magisk modules, scripts, tweaks, modifications, xposed, sound mods or similar are officially supported!
If you face issues, try to reproduce them without any modifications done to the system at all. Then provide logs and steps to reproduce (instructions in post #2). This way I can look into it.
Sometimes a clean flash after using to many mods like xposed, even if installed systemlessly gets rid of all perceived issues!
Posts like: "I have issues please fix will be simply ignored. "
Magisk Module fixing the stock powerhal behaviour:
The power hal of the pixel 4 is partially controlled by a config file. On stock the setup of the power-hal causes the kernel to not idle at 576mhz on the little cluster after some random length of uptime, depending on usage and setup.
This module fixes this behaviour. It´s not critically needed, but may increase battery life a tiny bit.
On stock this config file sets up the power hal to boost top-app schedtune boost to 30 upon interaction and after the boost duration is finished, back to a value of 10.
There are different groups for tasks. top-app tasks are ui-critical tasks, rt-tasks, all that are critical for a smooth experience of the phone.
Setting top-app schedtune boost to 30 causes the follwoing: The scheduler will expect tasks of the top-app group to use 30% more CPU time than they (probably) actually will, and the CPU-frequency governor will speed up the processor accordingly. "Boosting" a process in this way, thus, does not affect its scheduling priority, but it will affect the speed of the CPU on which it ends up running.
The problem is resetting the value back to 10, when no interaction is happening. This seems to cause the little cluster to idle at 1036mhz after the phone is up and running a few hours on 4.14 kernels.
With my module the value gets reset back to 0 instead of 10, when the phone is not being interacted with
As you can see this is not kernel related, but a userspace thing, that just influences how the kernel handles load. So it can´t be fixed in the kernel, it needs to be fixed in userspace.
That´s why I created this magisk module. It can be used on the stock kernel and other kernels as well!
This kernel was more than a month work and I spent countless hours during my free time (and the nights) to get it to this state! Especially preparing the CAF-Base I merged, understanding all changes and consequences which happen by merging it!
I´m glad it worked out and a bit proud it can finally be released!
So please enjoy it hopefully as much as I am I´m going to enjoy the rest of my sunday now!
The kernel was tested for a week without a single issue reported by my testers
A huge thanks to them at this place!
@wrongway213
@Mrcactuseater
@MArtyChubbs
@ilal2ielli
@toastyp
Detailed changelog below.
Enjoy!
Changelog:
Kernel Base
- Completely new kernel base based upon latest Google source
- Next-Gen CAF-Tag LV.AU.0.0.1-02420-qtiquingvm.0 merged
- Regular CAF-Tag for SD855 merged LA.UM.8.1.r1-12200-sm8150.0
- linux-stable upstream to latest 4.14.156
- included patches from kernel/common
- removed F2FS upstream due to conflicts with SQLite operations introduced by SQLite3 Magisk Module and GPay fix magisk module
- remove extensive Memory Management logging from Google
- removed nolog usage, remove rtb logging from the kernel
- remove selinux auditing from kernel for lower overhead
- remove IPC logging from the kernel
- introduce kmalloc reclaimable caches for improved memory management
Features:
- all previous features kept intact
- reduce power consumption when rendering static images
- add support for steam controller
- introduce bbr2 tcp congestion control algorithm
- improve bbr congestion control algorithm
Further Kernel Changes:
- make bluetooth driver more lightweight
- remove IPC logging from several drivers
- improve memory allocations (thanks @arter97 @Sultanxda)
- remove VLA usage (thanks @arter97)
-
Other changes:
- look at github
Magisk Module:
- Add Module to fix config for power hal
Have fun flashing and enjoy your device with latest linux-stable
Why is linux-stable important?
I wish you all a nice day/evening!
Download is below
Download:
Kernel: https://www.androidfilehost.com/?fid=4349826312261650873
Magisk Module: https://www.androidfilehost.com/?fid=4349826312261650875
How to flash the Kernel:
1. Make sure you are rooted and either EXKM or FKM is installed. Download the kernel.zip to your device.
1a. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past look at this post: click me
2. Optionally: Flash the magisk module provided in the release post!
3. Flash kernel zip in EXKM or FKM app. Root will be preserved!
4. Reboot and profit! Before reporting any issues make sure to read the first three posts of this thread!
Instructions can be found in the OP too!
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/freak0742Progress Report/Small Teaser
Hey everybody,
Testing of the new kernel I mentioned some time ago seems very very promising.
I really hope I find some time this weekend to get the release ready.
I started more than 3 times from scratch until everything worked out as I intended it to. That´s the reason, why there were no updates for over two weeks here now.
It´s a completely new kernel base from CAF (basically from their Next-Gen branch) and essentially the kernel like I wanted it from the beginning but wasn´t able to build so it boots up.
I will give a detailed description of everything done in the release post. That will be a long post.
The wait will be worth it so stay tuned.
The new kernel should have the freezing on bootup issue fixed, when any sort of GPay fix is used. I will give short instructions once the kernel is released, to make sure you can start clean there.
A big thanks to @ilal2ielli for debugging this issue with me, patiently providing logs all the time and keeping up with all the test builds I sent to him.
The display issues related to Android Auto when used in conjunction with HBM will also be fixed in the new kernel. Thanks to @toastyp for taking the time, providing me logs and giving feedbacks on test builds I sent him over the last weeks.
I wish everybody a nice day41Update to 4.7.5
Hey guys and girls,
I try to be quite fast with the monthly security updates indeed. Google always publishes the source code, when I´m going to sleep, so depending on your timezone you might have to wait a few hours or a day longer.
Keep in mind, I´m just a human being so if it takes a little bit longer, it´s probably because there´s something else keeping me busy.
With that said here´s the security update for June. We already had most of the changes from merging CAF, Linux-Upstream and other things.
Upstream linux-stable is merged to 4.14.182 as well as CAF-Upstream and mainline f2fs-updates
All recently developed CleanSlate options can be easily accessed via the CleanSlate apps on this kernel as well! Please make sure to buy the premium versions if you profit from these features and want to give a little bit back to @tbalden ! Or just drop him a small donation!
This includes the option to reduce the freq boosting from the stock powerhal and EAS scheduler boosting with adjustable levels. This is a very handy way to safe power on the fly without using the stock powersaver profile.
All option to use different gamma settings to reduce the green tint can be found as well! This includes a few different choices as well.
Please take look at the latest release posts from @tbalden ! These include more detailed explanations!
https://forum.xda-developers.com/showpost.php?p=82660965&postcount=219
https://forum.xda-developers.com/showpost.php?p=82688341&postcount=228
https://forum.xda-developers.com/showpost.php?p=82696759&postcount=233
https://forum.xda-developers.com/showpost.php?p=82725109&postcount=255
Before troubleshooting and reporting any issues make sure to not use any additional mods, scripts or tweaks. This includes all mods, even the tiniest modification you did.
Once you know things are working add them back one by one to make sure everything works.
More details in the changelog!
I wish everybody a great weekend
big thanks to all my testers again:
@Mrcactuseater
@MArtyChubbs @ilal2ielli
@toastyp @Alcolawl
Detailed changelog below.
Enjoy!
Changelog:
Kernel Base
- Merge June Security Update
- Linux-Stable-Upstream to 4.14.182
- Merge latest CAF-Tag for the SD855 as usual
- patches from kernel/common
- updates to f2fs to be inline with f2fs-stable
- update WiFi driver with upstream CAF to remove some logging
Features:
- add all recently developed CleanSlate features! They are all accessible via cleanslate apps, which can be found on the CleanSlate thread! Please make sure to buy the premium versions if you profit from these features and want to give a little bit back to @tbalden !
- option to reduce frequency boosting
- option to reduce EAS Scheduler related boosting
- option to reduce green tint by using different gamma tables (please refer to the release posts I linked above)
Other changes:
- see github
Magisk Module:
- Now included in the kernel.zip (will appear as AK3-Helper Module in Magisk Manager)
Have fun flashing and enjoy your device with latest linux-stable
Why is linux-stable important?
I wish you all a nice day/evening!
Download is below
Download:
Kernel: https://www.androidfilehost.com/?fid=4349826312261823892
How to flash the Kernel:
1. Make sure you are rooted, are using the latest magisk stable and either EXKM or FKM is installed. Download the kernel.zip to your device.
1a. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past (prior to 2.0.0) look at this post: click me
1b. Remove the old powerhint-magisk module in magisk manager starting with version 4.5.6 as it´s now included in the kernel.zip. After flashing the kernel it will show up as AK3 Helper Module in Magisk Manager.
2. Flash kernel zip in EXKM or FKM app. Root will be preserved! (Make sure to be on the latest firmware the kernel is made for)
3. Reboot and profit! Before reporting any issues make sure to read the first three posts of this thread!
Instructions can be found in the OP too!
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/freak0738Update to 2.1.0
Hey guys and girls,
So here´s the next update. I guess you all have noticed by now, that I try to not constantly update the kernel, immediately for every single new commit that makes its way into the kernel.
This has mainly two reasons. I want the kernel to be tested thoroughly. I´m not trying to develop a very close to stock kernel, but I still want it to be stable. Testing needs time and some issues only creep up after a while.
The other reason I´m short on time lately and updating the thread takes time.
Short explanation on some logs I examined, the new CAF-Merge and the December update from Google.
Regarding the logs. I further dug through the source and while testing we stumbled upon a few things.
I took a look at the log @rickysidhu_ send me a few days ago. It´s unfortunately caused by a warning that´s also present in the stock kernel on the Pixel 3 and I saw the same on a log from one of my testers. @rickysidhu_ confirmed it happens on EX-Kernel on the Pixel 4 as well, which is very close to stock. So I´m sure it isn´t something I introduced.
I never encountered the warning or the following reboot on my own device, so it might be something network related tied to a very specific scenario or some sequence of events.
I´m aware of the issue and still looking for a solution.
problem number two is connected to another issue one of my testers run into.
Looking at the log I found this commit from Google present in the stock kernel related to a problem where the device fails to switch between suspend and resume.
It essentially forces a kernel panic, when the device is stuck between suspend and resume. This issue appears to be quite rare, but it happens more frequently for some people.
It seems to me Google had no other choice, than to implement that non-desirable "workaround" for the issue.
If this happens the radar chip and some thermal driver related code seems to be at play.
If you encounter a reboot, immediately go to sys/fs/pstore, zip up the contents and upload them here for me. Give all details about your setup and I will look at the logs.
This brings us to the December update from Google.
Google now enforces warm reboots on thermal related shutdowns. That means logs are kept intact in case a random reboot happens.
I think this is directly related to the suspend/resume issue described above. So google is aware of the issue and seems to work on it.
On the good side, they worked on the face-detection driver and made it work more quickly and efficiently.
Google maxed out PCIe speeds, and fixed an encryption related problem which both impacted file system performance as well
Follow this link for an androbench taken on the December update
There are many other little improvements from Google in the December drop, so the wait was definitely worth it for me.
The last point is reserved for some of my own changes.
The nextgen-CAF tag is now merged to the most recent state to what´s available on the CAF-repos. This second merge brought again many fixes from CAF-Upstream and I can tell the kernel runs better than before from the logs and usage.
I was able to revert a few "emergency" google fixes in the source and replace them again with CAF-Upstream solutions. Some of these reverts seemed over a year old and seemingly forgotten by Google. This might have been the issue for some deep sleep issues. I didn´t encounter a single instance where my phone was left with broken deepsleep for over 2 weeks now.
Additionally I merged an upstream solution for PM/Wakeup driver from kernel/common, which reduces unnecessary logspam and also improves sleeping behaviour/operation.
Since there are some problems with sleep/suspend/resume behaviour on the Pixel 4, I wanted to give this a few weeks before it gets in the release kernel.
Alongside these commits, the Google and CAF drivers which make use of the upstream PM/Wakeup solution, were updated to work properly.
The CAF-Tag brought many improvments to SOC-related driver and EAS- Implementation as well. I certainly haven´t noticed any negative performance issues for now. Hundreds of files were updated. Take a look at github if you´re interested in detailed changes.
Removal of kernel side enforced HBM.
There are currently two ways to enable HBM on this kernel, either use the kernel side enforced HBM (toggleable in EXKM) or enable the hidden factory disabled HBM from Google.
After some Pixel 4 owners reported issues with the HBM toggle in EXKM, I decided to remove this implementation from the kernel for now.
The Pixel 4 and the Pixel 4XL share different BL values. Which made toggling HBM on the Pixel 4 reset the brightness to 1/4 of maximal brightness.
The HBM mode enforced by the kernel makes the display drop to 60hz, maxes the brightness out and renders the brightness slider non-functional.
However enabling the HBM mode baked into stock kernel, but disabled by Google leaves the display at 90hz and the brightness slider functional.
It´s described in the following artice: How to enable disabled factory HBM from Google on the Pixel 4/XL
Since that method works way more smoothly, I decided to remove the kernel side enforced HBM from my kernel.
So refer to that XDA article above for high brightness mode, in case you want it enabled.
A word of warning however. HBM is one of the mods, that can damage your device and Google could arguably deny any warranty claim, if you decided to use it.
Google made the Pixel 4/XL devices only use HBM on HDR video playback.
That might have a few reasons other than to save battery or to "limit" and leave users with a dimmer display.
Yes limiting the maximum brightness saves a bit battery especially when 90hz is used. I guess we all like a bit more battery life.
However what also needs to be seen is the relation of battery life versus increased usability in sunlight by HBM!
here´s a comparison shot with a camera on manual controls. One in a dark corner of the room and one in the "not so bright" German winter sun.
https://photos.app.goo.gl/wmN56Gd6unhvXBym8
As you can see the difference isn´t really big. I wouldn´t say enabling HBM makes usability in the sun better by a huge margin. Even the super bright displays of other phones are not comfortable to use in bright sun.
With the method above every can try by themselves if they increased brightness is worth the increased power consumption and decide for themselves.
Now the warning. Google deliberately made HBM only available on HDR Video playback. That means moving content with less chance of burn in.
Since we don´t have documentation about the safety limites of the displays available, you´re touching ground that isn´t clearly labeled as safe for the display on a daily basis.
Rendering static images on highest brightness in HBM, may "benefit" and accelerate burn in.
If you´re not using HBM and make a warranty claim for burn in, law is on your side when asking for a replacement. If you decide to use HBM and overwrite googles intentions, your in another zone.
Anyway have fun with the release. I´m very satisfied with the kernel so far
Small update on the magisk module:
Magisk Module fixing the stock powerhal behaviour:
The power hal of the pixel 4 is partially controlled by a config file. On stock the setup of the power-hal causes the kernel to not idle at 576mhz on the little cluster after some random length of uptime, depending on usage and setup.
This module fixes this behaviour. It´s not critically needed, but may increase battery life a tiny bit.
On stock this config file sets up the power hal to boost top-app schedtune boost to 30 upon interaction and after the boost duration is finished, back to a value of 10.
There are different groups for tasks. top-app tasks are ui-critical tasks, rt-tasks, all that are critical for a smooth experience of the phone.
Setting top-app schedtune boost to 30 causes the follwoing: The scheduler will expect tasks of the top-app group to use 30% more CPU time than they (probably) actually will, and the CPU-frequency governor will speed up the processor accordingly. "Boosting" a process in this way, thus, does not affect its scheduling priority, but it will affect the speed of the CPU on which it ends up running.
The problem is resetting the value back to 10, when no interaction is happening. This seems to cause the little cluster to idle at 1036mhz after the phone is up and running a few hours on 4.14 kernels.
With my module the value gets reset back to 0 instead of 10, when the phone is not being interacted with
As you can see this is not kernel related, but a userspace thing, that just influences how the kernel handles load. So it can´t be fixed in the kernel, it needs to be fixed in userspace.
That´s why I created this magisk module. It can be used on the stock kernel and other kernels as well!
I recommend using the module as I´m using it myself
V2 boosts the CPU cores to max for 5 seconds instead of only 1, when launching the camera app to ensure smoother operation.
The changes introduced by the new CAF-Tags were tested for over a week without a single issue reported by my testers
A huge thanks to them at this place again.
@wrongway213
@Mrcactuseater
@MArtyChubbs
@ilal2ielli
@toastyp
@Alcolawl
Detailed changelog below.
Enjoy!
Changelog:
Kernel Base
- Merge all Google related changes from December Security Drop
- Next-Gen CAF-Tag updated to LV.AU.0.1.0.r2-00200-qtiquingvm.0
- revert some Google changes, which could lead to a non deep sleep behaviour and replace them with CAF-Upstream solutions
- additionally merge upstream solution for PM/Wakeup driver, which reduces unnecessary logspam and also improves sleeping behaviour
- update Google and CAF drivers to make use of the upstream PM/Wakeup solution
- linux-stable upstream to latest 4.14.158
- update AK3 zip to latest state (thanks to @osm0sis )
Features:
- Remove kernel enforced HBM (only disadvantages at the moment, use this instead: how to activate factory disabled HBM from Google
- make WLAN driver more lightweight and user power efficient workingqueues
- remove an unnecessary wakelock from the WLAN driver (the wlan has more than enough ways to acquire wakelocks)
Further Kernel Changes:
- look at github
Other changes:
- look at github
Magisk Module:
- update to v2
- boost cpu-cores to max when opening the camera app 5 seconds instead of only 1 second to ensure smoother operation until all necessary firmware and drivers are loaded
Have fun flashing and enjoy your device with latest linux-stable
Why is linux-stable important?
I wish you all a nice day/evening!
Download is below
Download:
Kernel: https://www.androidfilehost.com/?fid=4349826312261667498
Magisk Module: https://www.androidfilehost.com/?fid=4349826312261667499
How to flash the Kernel:
1. Make sure you are rooted and either EXKM or FKM is installed. Download the kernel.zip to your device.
1a. If you used the SQLITE3 Magisk Module and the GPay Fix Magisk Module in the past look at this post: click me
2. Optionally: Flash the magisk module provided in the release post!
3. Flash kernel zip in EXKM or FKM app. Root will be preserved!
4. Reboot and profit! Before reporting any issues make sure to read the first three posts of this thread!
Instructions can be found in the OP too!
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/freak07
