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Overview

A daily‑driver focused Linux 6.6 GKI 2.0 kernel for the OnePlus 13 (PJZ110 / sun / sm8750), built entirely from GitHub Actions. The goal is a stock‑like, stable baseline with modern root + hiding support and a few opt‑in performance and battery tweaks — not a maxed‑out benchmark build.

Three root solutions are offered as separate build lanes, all sharing the same CCTV18 OP13 source, toolchain and SUSFS tree:

Lane	Workflow	Root solution	Pick it if…
ReSukiSU	Build_ReSukiSU.yml	ReSukiSU (SukiSU fork)	you want the SukiSU feature set with the ReSukiSU manager/metamodule stack
SukiSU Ultra	Build SukiSU_Ultra.yml	SukiSU‑Ultra	you want upstream SukiSU Ultra with KPM + inline SUSFS
KernelSU‑Next	Build KSUN.yml	KernelSU‑Next	you prefer the classic KernelSU‑Next experience

Builds are produced as GitHub Actions artifacts on each manual run. If a tagged release exists, grab the ZIP from Releases; otherwise open the relevant Actions run and download the artifact.

Current release line: v81 — feature‑rich daily‑driver defaults (SUSFS inline + KPM + ADIOS + Baseband‑Guard + ZRAM LZ4 + NTSYNC + netfilter, with BBR and Re:Kernel now on by default). FengChi/HMBIRD stays off for stability. See docs/RELEASE_v81.md.

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Build matrix

All three lanes are manually triggered (workflow_dispatch) and share:

• Source: cctv18/android_kernel_common_oneplus_sm8750 @ oneplus/sm8750_v_16.0.0_oneplus_13_6.6.89
• Toolchain: CCTV18 prebuilt LLVM/Clang 18 (LLVM-Clang18-r510928) + build‑tools
• SUSFS: cctv18/susfs4oki @ oki-android15-6.6 (single source — no mixed SUSFS trees)
• Packaging: osm0sis/AnyKernel3, boot detection fixed for the A/B sun layout
• Caching: per‑lane ccache (zstd), restored across runs

Key inputs (set them when you press Run workflow)

Input	What it does	Sensible default
profile	stock_daily / stock_plus / minimal_safe / debug_only	stock_daily
root ref	resukisu_ref / sukisu_ref / ksun_ref	main · builtin · dev-susfs
SUSFS / susfs_enable	Enable CCTV18 SUSFS	On
susfs_patch_policy	strict / audited_cctv18 / native_cctv18	audited_cctv18
hook_mode	Hook target (inline SUSFS vs. auto/kprobe)	inline_susfs / cctv18_susfs_auto
kernel_suffix / kernel_name	Stock‑mimic LOCALVERSION (controls uname -r)	stock‑like string
optimise	O2 (stable) or O3 (test‑only)	O2
zram_comp	Preferred ZRAM compressor	lz4
bbr / bbr_mode	Compile in TCP BBR (selectable at runtime, not forced default)	On / enabled
proxy / better_net	Netfilter / TTL / IP_SET options	On
adios, bbg, rekernel	Optional CCTV18 patches (best‑effort, see note)	On
fengchi / HMBIRD	Experimental scheduler	Off (stability)
clean_ccache	Wipe ccache before building	false

Optional patches are best‑effort. adios, baseband_guard, rekernel, fengchi/HMBIRD etc. are applied only if a matching CCTV18 patch exists and dry‑runs cleanly; otherwise the step logs a warning and skips, so the build still completes. Don't assume a toggle is "on" in the final Image — confirm in the run's _ox_debug/optional-patches.log and config-scan.txt.

Outputs

Each run uploads one artifact containing:

• Image_OP13_… — raw kernel image (+ .sha256)
• AK3_OP13_…_FLASH_THIS.zip — AnyKernel3 flashable ZIP (+ .sha256)
• OP13_ZRAM_LZ4_Tuner_…zip — optional, separate ZRAM/LZ4 tuner module
• _ox_debug/ — logs, final .config, rejects, UTS release, patch audit

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Features

What each lane reliably provides:

• GKI 2.0 packaging as an AnyKernel3 flashable ZIP
• Root: ReSukiSU or SukiSU Ultra or KernelSU‑Next (one per lane)
• SUSFS (CCTV18 susfs4oki) with inline hook by default — SUS path / mount / kstat, try‑umount, uname spoof, cmdline/bootconfig spoof, open‑redirect, sus‑map
• ZRAM with LZ4 / LZ4HC / ZSTD kernel support and a preferred compressor
• Netfilter extras when proxy/better_net is on: TTL/HL target + match, IP_SET
• KPM support on the SukiSU/ReSukiSU lanes (kernel support only — no modules bundled)
• Stock‑mimic uname -r via kernel_suffix, so the build looks stock to apps

Opt‑in / best‑effort (only if the CCTV18 patch applies cleanly): ADIOS I/O scheduler, Baseband‑Guard, Re:Kernel, FengChi/HMBIRD scheduler, NTSYNC, BBR.

Hiding note: the SukiSU stable lane intentionally skips the SUSFS SELinux‑policy hiding blocks (69_hide_stuff and the policy‑query wrappers) because they failed final link against the current SukiSU builtin. Core SUSFS + inline hook stay enabled; SELinux‑policy hiding is reduced. See docs/REVIEW.md.

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Safety first

⚠️ Flashing kernels can cause bootloops, soft‑bricks, data loss and instability. You are responsible for what you flash. If you can't recover from a bootloop, don't flash.

Back up before flashing. In recovery, back up boot and init_boot (and vbmeta if your setup uses it).

If you bootloop:

1. Reboot to recovery.
2. Restore your boot / init_boot backup. (If recovery is broken, flash the stock boot.img, then reboot to recovery.)
3. Reboot.

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Install

1. Download the correct AK3_OP13_…_FLASH_THIS.zip from Releases (or the Actions run artifact).
2. Flash with a kernel flasher or your KernelSU/SukiSU/Magisk manager's AnyKernel3 flasher.
3. Reboot.
4. Install/update the matching SUSFS module for your root manager.

Force LZ4 ZRAM (optional): flash the separate OP13_ZRAM_LZ4_Tuner module, reboot, and it prefers LZ4 when supported. It is safe by design — it will not reset ZRAM if it's already active.

Switching lanes (e.g. SukiSU → KSUN)? Reinstall the SUSFS module afterwards to clear stale module state.

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Verify after flashing

# Kernel version / stock-mimic uname
uname -a

# ZRAM + active compressor
su -c 'cat /sys/block/zram0/comp_algorithm 2>/dev/null; cat /proc/swaps'

# SUSFS kernel flags
su -c 'zcat /proc/config.gz | grep -E "CONFIG_KSU(_SUSFS)?(_SUS_PATH|_SUS_MOUNT|_TRY_UMOUNT|_SPOOF_UNAME)?="'

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Troubleshooting

• SUSFS module "operation not supported" / 0x555e1 — reinstall the SUSFS module after flashing; if you had a different one before, uninstall it, reboot, then install the correct one.
• No zram.ko — ZRAM is built‑in here; check /proc/swaps and /sys/block/zram0/comp_algorithm instead of looking for a .ko.
• Bootloop — restore boot / init_boot, then return to the stock_daily profile and re‑introduce options one at a time.
• A toggle didn't take effect — open the run's _ox_debug/config-scan.txt and optional-patches.log; best‑effort patches skip if they don't apply.

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Build it yourself

Open Actions → pick a lane → Run workflow, choose your inputs, and download the artifact when it finishes. Start from stock_daily + O2 + inline SUSFS for a stable result, then experiment from a fork.

Maintenance utilities

• Clean Caches (Clean Caches.yml) — purge ccache-* Actions caches.
• Cleanup CCache (clean-up.yml) — bulk cache/run cleanup with filters.
• Lint Workflows (lint.yml) — actionlint + yamllint + shellcheck on every workflow change, so pipeline typos are caught before a build is queued.

Portable composite action (advanced)

action.yml is a separate, device‑agnostic builder that syncs sources with Google's repo tool (manifest.xml), pulls AnyKernel3/kernel_patches from TheWildJames + SUSFS from simonpunk/susfs4ksu, and applies a broad OnePlus performance/battery patch set. It is intended for forks/other devices and is not what the OP13 release lanes above use. See docs/REVIEW.md for details and a roadmap to unify the lanes.

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Credits

@cctv18 · SukiSU‑Ultra · ReSukiSU · KernelSU‑Next · @simonpunk (SUSFS) · @osm0sis (AnyKernel3) · @mrcxlinux · @WildKernels / @TheWildJames

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License

Distributed under GPL‑2.0‑only (see LICENSE), matching the upstream Linux kernel and SUSFS sources this project builds on. Build glue and workflows are covered by the same license. Bundled third‑party components (AnyKernel3, root solutions, CCTV18 patches) remain under their own upstream licenses — follow those where applicable.