v1.3

Ki-kernel for POCO F4 / Redmi K40S (munch)

Build Date: 2026-09-27
Kernel Version: Linux 4.19.325
Variant: MIUI / HyperOS & AOSP
Toolchain: ZyCromerZ Clang 16.0.6 (LLVM 16.0.6 + GNU Binutils 2.47)

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v1.3

• Added Dynamic Fsync
• Migrated to ReSukisu v4.2.0
• Backported NTSYNC driver
• Upstream SUSFS v2.3.0
• Improved CPU idle frequency handling
• Added I/O wait boost limits
• Fixed Wi-Fi hotspot and tethering
• Improved bypass charging handling
• Migrated to ZyCromerZ Clang 16.0.6

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v1.2

Ki-kernel for POCO F4 / Redmi K40S (munch)

Build Date: 2026-09-14
Kernel Version: Linux 4.19.325
Variant: MIUI & AOSP
Toolchain: Proton Clang 13.0.0 (LLVM LLD 2.36.1)

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• Backported Google BBRv3 to Linux 4.19 with DCTCP ECN helpers and extended BBR stats.
• Limit TCP CC to bbr and westwood, with fq as default qdisc.
• Tuned schedutil rate limits for Silver, Gold and Prime clusters.
• Adjusted WALT migration thresholds.
• Reworked touch-aware LPM to avoid unnecessary CPU wakeups during touch/scroll.
• Reduced I/O-wait impact in menu governor.
• Switched autosleep_wq to WQ_HIGHPRI | WQ_FREEZABLE.
• Reduced suspend retry timeout from 500ms to 50ms.
• Tuned RPMH suspend states.
• Enabled high-priority per-CPU EROFS decompression kthreads.
• Increased readahead from 128KB to 512KB.
• Increased F2FS discard batching to 16 requests.
• Fixed KernelSU-Next / SuSFS build and compatibility issues.
• Raised QCA Bluetooth workqueue priority.
• Increased BT UART autosuspend delay from 150ms to 1000ms.
• Added Sound Control 3.x hardware gain controls.
• Disabled USB LPM for USB Audio endpoints.
• Added battery SOH and cycle count nodes.
• Added writable charging current limit.
• Enabled Smart FPS for 60/90/120Hz on Samsung E4.
• Added switchable CPU profiles: Battery Saver / Balanced / Performance.
  • Mode Battery : echo 0 > /sys/kernel/ki_profile/mode
  • Mode Balanced: echo 1 > /sys/kernel/ki_profile/mode
  • Mode Performance: echo 2 > /sys/kernel/ki_profile/mode
• Fixed WALT capacity scaling and migration handling.
• Built WireGuard into the kernel.
• Improved SuSFS Stealth SU and supercall handling.

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v1.1

Ki-kernel for POCO F4 / Redmi K40S (munch)

Build Date: 2026-09-13
Kernel Version: Linux 4.19.325
Variant: AOSP & MIUI

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Changelog

• Fixed Android 16 / Infinity-X bootloop and unbootable recovery by matching dtb with vendor_boot and Image with boot.
• Fixed touchscreen cold-boot freeze and enabled automatic touch initialization in recovery.
• Refined schedutil rate limits to 500us up / 1000us down for faster frequency response and touch ramp.
• Enabled Kyber MQ I/O scheduler for lower UFS 3.1 latency.
• Added BBR, Westwood, and FQ networking with fq as the default qdisc.
• Fixed third-party USB-PD/PPS fast charging and gaming disconnect/reconnect charging loops.
• Added 3A USB bypass charging and locked True Bypass against background daemon resets.
• Integrated MIUI/HyperOS performance components: MIGT, MILLET, SF_BINDER, RTMM, and HRTICK.
• Removed unnecessary debug/tracing overhead including CONFIG_DEBUG_LIST, CoreSight, IPC logging, schedstats, and MSM debug clock controller.
• Enabled power-efficient workqueues by default.
• Set kernel timer frequency to 300Hz.
• Auto-patched HyperOS SELinux policies.

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V 1.0

Kernel for POCO F4 / Redmi K40S (munch)

Build Date: 2026-09-11
Kernel Version: Linux 4.19.325
Variant: AOSP & MIUI

Changelog

• Initial Build
• Fix: Resolved compilation issue on fs/namespace.c (susfs_try_umount).
• Fix: Resolved OverlayFS / Metamodul mount error 17 (add_try_umount).
• Fix: Reverted __sys_setresuid hook to prevent use-after-free panic / reboot loop on init.
• Fix: Prevented buffer overflow panic on CMD_SUSFS_SHOW_ENABLED_FEATURES.