PanVK RC3 Safety v2 - Strato Mali / Lemon / Eden

PanVK RC3 Safety v2 — Switch emulators 🫐

Experimental Android/Bionic PanVK Kbase driver built from zenithblue-oss RC3 (exact tagged commit fd6ed91eff1c8d3a83307a2348b959bb93797011; Mesa 5a07217f034b3e50d8c7c7794f97a2df1742613b) plus the previously developed LukeValen Android Switch/Safety v2 overlay.

Install the correct package

• Strato Mali: PanVK-RC3-Strato-Mali-SAFETY-v2.zip
• Lemon: PanVK-RC3-Lemon-SAFETY-v2.zip
• Eden: PanVK-RC3-Eden-SAFETY-v2.zip

The three archives use the same Android ARM64 driver binary but contain installer-specific meta.json. Each ZIP contains meta.json and libvulkan_panfrost.so at archive root. These are custom GPU drivers, not emulator APKs. Do not import an outer Actions artifact ZIP.

Compatibility fixes carried over

• MediaTek Android Native Buffer / Vulkan VkNativeBufferANDROID: search all native-handle FDs for an importable DMA-BUF, instead of assuming data[0].
• Kbase native-buffer release: disable DRM syncobj payload copying on Kbase and use QueueWaitIdle / already completed fence -1 for Android release, bypassing the experimental KCPU SYNC_FD export for this path.
• Switch-friendly Kbase sync safety: PANVK_KBASE_GPU_SEMAPHORE_WAITS OFF by default, falling back to CPU semaphore waits instead of potentially cyclic cross-CSF-subqueue GPU waits. This is a stability tradeoff and reduces concurrency. Other GPU internal synchronization still operates.
• Preserve 64-bit command-stream GPU virtual addresses.

All qualified RC3 upstream patches are applied first. The overlay fails closed on source drift; a successful build and archive validation are necessary before publication.

Safety and testing

Pre-release; not guaranteed crash/deadlock free. Earlier RC2 experiments caused GPU faults and a kernel panic on a Poco X6 Pro. These fallbacks target observed failure paths but have not been validated in-game on RC3 for any of these emulators. Back up important data, retain the system GPU driver, and report device model, GPU, kernel UAPI and logcat/dmesg for regressions.

Repository: https://github.com/LukeValen/panvk-kbase-android/tree/rc3-switch-safety-v2

☕ The developer wanted to give you a good time, and in return you can offer them a coffee in https://ko-fi.com/lukevalen/donate 🫐

PanVK G615 RC2 Safety v2 - Strato Mali

PanVK G615 — RC2 Safety v2 for Strato Mali 🫐

Experimental Vulkan driver adapted for Strato Mali on Mali-G615 MC6 / Kbase CSF (Valhall v11).

This build uses the exact same compiled libvulkan_panfrost.so as the Lemon Lite RC2 Safety v2 release. Only the ZIP metadata and package name were adapted to Strato Mali's stricter GPU-driver installer. It does not contain or modify the Strato Mali emulator APK.

Fixes carried over from RC2 Safety v2

• Improved Android Native Buffer / MediaTek DMA-BUF discovery and import.
• Avoided DRM syncobj payload-copy handling on Kbase.
• Conservative Android native-buffer release synchronization instead of experimental KCPU SYNC_FD exports.
• Disabled cross-subqueue GPU semaphore waits by default.
• Fixed truncated 64-bit GPU command-stream addresses.

Strato Mali package

• Download: PanVK-RC2-Strato-Mali-SAFETY-v2.zip
• Contents: meta.json and libvulkan_panfrost.so at ZIP root.
• Metadata: Strato-compatible schema version 1 with only its supported fields.
• Minimum Android API: 35
• Device target: Poco X6 Pro, MediaTek Dimensity 8300 Ultra, Mali-G615 MC6.
• Status: Package structure verified; Strato Mali import and in-game stability have not yet been independently confirmed.

Important warning

An earlier RC2 test driver triggered a GPU CS_BUS_FAULT, a KCPU fence timeout, and a kernel panic on the reference device. RC2 Safety v2 includes fixes for several known hazardous paths, and the user reported recovery in Lemon Lite, but Strato Mali is a different emulator and this ZIP is experimental. Be prepared to revert to the system GPU driver; no guarantee of stability is implied.

Install

In Strato Mali, open Settings → GPU Driver → Install, select the ZIP above, and choose PanVK RC2 G615 Strato Mali Safety v2 after import. Do not import the GitHub Actions outer ZIP.

Source and integrity

• Source branch: lemon-rc2-bufferfix (based on upstream RC2)
• Successful upstream compile workflow: https://github.com/LukeValen/panvk-kbase-android/actions/runs/37955006779
• Library SHA256: a893dcfa88289b0829eaf4c62aa1be3e55d145bed6a4dcdbadfaf18e8dd52a21
• Strato package SHA256: d7dec47293eb75c0407a33a4f4533eed0f2cac7a7ed9125dad9104407d7d4aa0

☕ The developer wanted to give you a good time, and in return you can offer them a coffee in https://ko-fi.com/lukevalen/donate 🫐

PanVK G615 RC2 Safety v2 - Lemon Lite

PanVK Mali-G615 — RC2 Safety v2 (Lemon Lite / Switch)

Experimental PanVK Vulkan driver for Mali-G615 MC6, built from the upstream 0.1.0-rc2 tag, with the Android/Kbase safety fixes from LukeValen's Switch-emulator fork.

Changes

• Fixed Android Native Buffer (ANB) DMA-BUF selection on MediaTek gralloc, addressing VK_ERROR_INVALID_EXTERNAL_HANDLE during Vulkan initialization.
• Bypassed DRM syncobj payload-copy logic on Kbase.
• Added conservative Android release synchronization (QueueWaitIdle + release fence -1), avoiding the experimental KCPU SYNC_FD exporter for this build.
• Disabled Kbase cross-subqueue GPU semaphore waits by default to avoid a previously observed circular wait.
• Preserved full 64-bit GPU CS call addresses, preventing address truncation above 4 GiB.
• Packed as a flat ZIP for Lemon Lite: meta.json and libvulkan_panfrost.so are at archive root (not ZIP-in-ZIP).

Compatibility / status

• Reference device: Poco X6 Pro — Dimensity 8300 Ultra (MT6897), Mali-G615 MC6, Android 16, Kbase CSF at /dev/mali0.
• Application: Lemon Lite (Eden fork) with custom Mali Vulkan driver loading.
• Validation: Celeste was reported to launch successfully with Safety v2 on the reference device. Other titles, GPUs and devices have not been comprehensively validated.
• Important: The previous RC2 ANB-fix build caused a whole-device kernel panic during GPU execution (CS_BUS_FAULT followed by KCPU FENCE_SIGNAL timeout). Safety v2 addresses known risky paths but is not guaranteed to eliminate all driver- or kernel-level faults. Back up your data, and revert to the stock Mali driver if you encounter instability.

Installation

1. Download PanVK-RC2-Lemon-SAFETY-v2.zip from this release.
2. In Lemon Lite, open GPU Driver Manager, install the ZIP and select PanVK RC2 G615 Lemon Safety v2.
3. Restart Lemon Lite. Keep the system driver available as a fallback.

Do not install the GitHub Actions artifact's outer ZIP in Lemon. Use the flat driver ZIP attached directly to this release.

Source and integrity

• Release tag tracks the lemon-rc2-bufferfix source branch used by the successful GitHub Actions build.
• GitHub Actions run: https://github.com/LukeValen/panvk-kbase-android/actions/runs/37955006779
• A checksum file for the attached driver ZIP is provided as an asset.

Support

☕ The developer wanted to give you a good time, and in return you can offer them a coffee in https://ko-fi.com/lukevalen/donate 🫐

PanVK G615 Strato Mali latest

Rolling experimental PanVK build for Strato Mali.