⋆ palaziks CustomRom-KernelBuild ⋆

Stability-focused GKI 6.6 kernel for OnePlus 13 (SM8750) with ReSukiSU

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⚙️ Kernel Information

Property	Value
Version	6.6.138 (upstreamed from 6.6.89)
Chipset	SM8750 | Snapdragon 8 Elite | sun
Kernel Version	Linux 6.6 (GKI Android 15)
Android Version	15 VanillaIceCream (compatible with later versions)
ROM Compatibility	custom rom (CrDroid has been tested and works fine; other custom roms should work in theory—please try them yourself.)
Root Solution	ReSukiSU / SukiSU Ultra (Multi-Manager)
Build System	GitHub Actions CI/CD (optimized for ~5-6min builds)

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📝 Features

🔁 Kernel Version

• ✅ Upstream – Upstreaming the OnePlus's official kernel to the Google's newest A15 6.6 kernel

🔐 Security & Hide

• ✅ SuSFS – Enhanced environment hiding (path/mount/kstat spoofing)
• ✅ Baseband Guard – Anti-brick modem protection
• ✅ Unicode Bypass Fix – Path traversal protection

🚀 Performance & Scheduler

• ✅ Fengchi / HMBIRD – Advanced CPU scheduler optimizations for SM8750
• ✅ ADIOS IO Scheduler – Improved read/write performance
• ✅ SchedUtil Optimizations – Better CPU governor responsiveness (optional)
• ✅ Oryon CPU Tuning – -mcpu=oryon-1 flags for SM8750

🌐 Networking

• ✅ TCP BBR + Brutal – Modern congestion control algorithms
• ✅ WireGuard – Kernel-level VPN support
• ✅ IP_SET + IPv6 NAT – Advanced firewall + IPv6 masquerade (optional)
• ✅ TTL/HL Target – Hide tethering from carrier detection (optional)

💾 Storage & Memory

• ✅ LZ4 1.10.0 + ZSTD 1.5.7 – Faster compression for ZRAM
• ✅ ZRAM Writeback – Better memory management (optional)
• ✅ F2FS Optimizations – Enhanced flash storage performance (optional)

🎮 Gaming & Compatibility

• ✅ NTSync – Low-latency NT sync primitives (Wine/Proton gaming) (optional)
• ✅ Droidspaces – SYSVIPC + PID_NS + POSIX_MQUEUE for proot-distro

🔋 Battery & Power

• ✅ Wakelock Blocker – Reduce idle battery drain
• ✅ Re-Kernel Support – Enhanced app freezing via NoActive/Freezer (optional)

🧩 KernelSU Enhancements

• ✅ Multi-Manager – Compatible with multiple KSU variants

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🧠 Memory & Scheduler Optimizations (WildKernels)

25 low-level patches for reduced latency, better cache usage, and improved responsiveness.

Patch	Purpose
optimized_mem_operations.patch	Optimized memcpy/memset for ARM64
file_struct_8bytes_align.patch	Align file structures for better cache locality
reduce_cache_pressure.patch	Lower memory pressure during heavy workloads
mem_opt_prefetch.patch	Smart prefetching for sequential access patterns
optimise_memcmp.patch	Faster memory comparison routines
minimise_wakeup_time.patch	Reduce CPU wake latency for interactive tasks
int_sqrt.patch	Optimized integer square root for scheduler math
force_tcp_nodelay.patch	Reduce TCP latency for gaming/streaming
reduce_gc_thread_sleep_time.patch	Shorter GC thread sleeps for smoother UI
add_timeout_wakelocks_globally.patch	Prevent aggressive wakelock timeouts
f2fs_reduce_congestion.patch	Lower F2FS write contention
reduce_freeze_timeout.patch	Faster app freeze/unfreeze transitions
clear_page_16bytes_align.patch	16-byte aligned page clearing for NEON efficiency
add_limitation_scaling_min_freq.patch	Smarter min-frequency scaling limits
re_write_limitation_scaling_min_freq.patch	Refined frequency scaling behavior
adjust_cpu_scan_order.patch	Optimized CPU selection order for task placement
avoid_extra_s2idle_wake_attempts.patch	Reduce unnecessary suspend-to-idle wakes
disable_cache_hot_buddy.patch	Prevent cache thrashing in buddy allocator
f2fs_enlarge_min_fsync_blocks.patch	Larger fsync batches for F2FS efficiency
increase_ext4_default_commit_age.patch	Less frequent EXT4 journal commits
increase_sk_mem_packets.patch	Larger socket buffer for high-throughput networking
reduce_pci_pme_wakeups.patch	Fewer PCIe power management wakeups
silence_irq_cpu_logspam.patch	Reduce IRQ-related kernel log noise
silence_system_logspam.patch	Cleaner dmesg output
use_unlikely_wrap_cpufreq.patch	Branch prediction hints for cpufreq paths

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🤖 Compiler & Build Configuration

Toolchain

• Clang: AOSP Clang-r563880c (lineage-23.2 in android16-qpr3-release)
• Linker: LLD 19 with ThinLTO cache in RAM (/dev/shm)
• CCache: ECS-enhanced ccache with 10GB cache + aggressive sloppiness

Compiler Flags

-O2                          # Balanced optimization level
-mcpu=oryon-1               # Target Snapdragon 8 Elite cores
-fno-strict-aliasing        # Safer pointer aliasing
-fno-delete-null-pointer-checks  # Extra null safety
-flto=thin                  # ThinLTO for link-time optimization (optional)
-ffile-prefix-map=...       # Reproducible builds

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🛠️ Build Workflow (GitHub Actions)

Quick Start

1. Fork this repository (ensure all branches are copied)
2. Go to Actions → Enable workflows
3. Click "ReSukiSU OP13 Build" → "Run workflow"
4. Configure options:
   • ✅ SuSFS (recommended for hiding)
   • ✅ Fengchi (performance scheduler)
   • ✅ Memory Opt Patches (25 optimizations)
   • 🔘 LTO Type: thin (balanced) / none (fastest compile) / full (max optimization)
   • 🔘 Optional features: NTSync, IPv6 NAT, etc.
5. Click "Run workflow" → Wait ~4-5 minutes
6. Download AnyKernel3_*.zip from artifacts or Telegram

Workflow Optimizations

This CI pipeline includes:

• 🚀 Parallel patch application for 20+ WildKernels patches
• 💾 RAM-based LTO cache (/dev/shm) to avoid disk I/O bottlenecks
• ⚡ ThinLTO job limiting (--thinlto-jobs=$(nproc/2)) to prevent CPU thrashing
• 🔄 Aggressive ccache with kernel-specific sloppiness for maximal cache hits
• 📦 Pre-downloaded toolchain via aria2c with 16 connections
• 🗑️ Background cleanup of unused GitHub runner packages

Build Time Expectations with CCache

Configuration	Estimated Time
lto_type: none + minimal patches	~3:20-3:50
lto_type: thin + all patches (default)	~4:50-5:50
lto_type: full + all patches	~7:00-9:00

💡 Tip: Use lto_type: none for rapid testing, thin for release builds.

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📱 Supported Devices

Device	Codename	Status
OnePlus 13	PJZ110 (CN) / OP13 (Global)	✅ Fully Supported
OnePlus 13T	OP13T	⚠️ Untested (may work)

Requires unlocked bootloader + custom recovery (TWRP / KernelFlasher)

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📦 Installation

1. Download the latest AnyKernel3_*.zip from Releases or Actions artifacts
2. Boot to custom recovery (TWRP / OrangeFox / KernelFlasher)
3. Flash the ZIP file
4. (Required) Install a metamodule for KSU:
   • mountify
   • meta-overlayfs
   • meta-magicmount
5. Reboot and enjoy! 🎉

⚠️ Disclaimer: I am not responsible for bricked devices, data loss, or other issues. Flash at your own risk.

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🤝 Credits & Acknowledgements

Contributor	Contribution
mrcxlinux	The base workflow
xiaomichael	Some help & GKI infrastructure
cctv18	SuSFS, ccache-ECS, Baseband Guard, public ccache
Numbersf	Fengchi / HMBIRD scheduler patches
WildKernels	25 memory/scheduler optimization patches & workflow optimization
TheWildJames	Unicode fix & additional kernel patches
ReSukiSU	ReSukiSU & ReSukiSU patches
palazik	Forked from this project
linx3141	Drawing on the Clang toolchain used in this project and the modifications made to it