forked from marfrit/marfrit-packages
test0r
713a856cdc
Workaround for the dmabuf-wayland green-frames bug (marfrit/dmabuf-modifier-triage#1). iter1 phase 2 source-read of KWin 6.6.4 + Mesa 26.0.6 ruled out the original H1/H2 hypotheses (panfrost offset handling and KWin wl_dmabuf import are clean) and matched the green tone to BT.601 limited-range YUV(0,0,0) -> RGB(0, 135, 0). Conclusion: panfrost reads zero-fill memory despite hantro having written real data — a cache-coherency / synchronization gap. V4L2 doesn't attach implicit fences (dma_resv) to CAPTURE buffers on VIDIOC_DQBUF; this gap is the same one our vb2_dma_resv RFC v2 addresses upstream. The userspace workaround is to issue DMA_BUF_IOCTL_SYNC(SYNC_START|SYNC_RW) + SYNC_END(SYNC_RW) on each EXPBUF fd before submitting to the compositor — invokes the producer driver's begin_cpu_access / end_cpu_access path, which on most ARM SoCs flushes write buffers and synchronizes coherent memory. Patch covers BOTH vaapi_dmabuf_importer (the path our test exercises via `mpv --hwdec=vaapi`) and drmprime_dmabuf_importer (for symmetry when used via `--hwdec=drmprime`). If this works, ship it; if it doesn't, hypothesis space narrows further to GPU-side cache invalidation in panfrost's kernel-mode dma_buf import path (H7). pkgrel 8 -> 9. Patch sha256 6c929bea7636b8d81b63a1275ba1d8a471fe2f249fc23509043ace6cf9b076a7.
marfrit-packages
Overlay package repository for the reauktion.de infrastructure.
Published at: https://packages.reauktion.de/
Scope
| Tree | Arches | Notes |
|---|---|---|
| Arch Linux ARM (ALARM) | aarch64 |
primary target — Pi 5, Rock 5, ampere, KU-1255 test rigs |
| Arch Linux | x86_64 |
for nuccies / workstations |
| Debian | arm64, amd64 |
for non-Arch hosts |
MIPS is intentionally unsupported. The Fritz!Box is sacred.
Layout (served at packages.reauktion.de)
packages.reauktion.de/
├── arch/
│ ├── aarch64/{marfrit.db,marfrit.files,*.pkg.tar.{xz,zst}{,.sig}}
│ └── x86_64/...
├── debian/
│ ├── dists/
│ │ ├── bookworm/{Release,InRelease,Release.gpg,main/binary-{arm64,amd64}/...}
│ │ └── trixie/...
│ └── pool/main/...
└── marfrit.gpg # public signing key
Adding the repo (Arch / ALARM)
curl -sO https://packages.reauktion.de/marfrit.gpg
sudo pacman-key --add marfrit.gpg
sudo pacman-key --lsign-key 92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C
# Paste at the end of /etc/pacman.conf:
[marfrit]
Server = https://packages.reauktion.de/arch/$arch
SigLevel = Required DatabaseRequired
sudo pacman -Sy
Adding the repo (Debian)
sudo install -m 755 -d /etc/apt/keyrings
curl -s https://packages.reauktion.de/marfrit.gpg | \
sudo gpg --dearmor -o /etc/apt/keyrings/marfrit.gpg
echo "deb [signed-by=/etc/apt/keyrings/marfrit.gpg] https://packages.reauktion.de/debian $(lsb_release -cs) main" | \
sudo tee /etc/apt/sources.list.d/marfrit.list
sudo apt update
Signing key
- Fingerprint:
92D5E96D8F63C75E4116AA1FF5C8C4603D0D250C - UID:
Markus Fritsche (marfrit-repo signing) <mfritsche@reauktion.de> - Expires: 2030-04-13
Key management procedures (renewal, rotation, revocation) live in DokuWiki at private:reauktion:marfrit_repo_key (admin-only).
Layout in this Git repo
marfrit-packages/
├── README.md
├── arch/
│ └── distcc-avahi/ # ALARM distcc with --with-avahi
├── debian/ # (future) Debian source packages
└── .gitea/
└── workflows/
└── build.yml # CI pipeline stub
mfritsche@reauktion.de.