test0r d0190e2c05 firefox-fourier: 0005 RDD sandbox carve-out for V4L2 stateless decode
Extends Mozilla's RDD sandbox to permit /dev/media* (driver-matched),
the MEDIA_IOC_* ioctl family ('|'), and the sysfs paths libudev would
need to enumerate the media controller (read-only AddTree on
/sys/class, /sys/bus, /sys/dev/char, /sys/devices/platform plus
/run/udev, /etc/udev/udev.conf, /proc/self, /dev/dma_heap).

Necessary but not sufficient on its own: Mozilla's OpenAtTrap
rejects fd-relative openat used by systemd's chase() inside libudev.
The companion ffmpeg-v4l2-request-git patch adds a brute-force
fallback that opens /dev/media[0..15] directly with absolute paths,
which composes with this broker policy.

Validated on RK3399 / Pinebook Pro / mainline rkvdec: with both
patches in place, default RDD sandbox runs HW decode at ~5% CPU on
1080p30 H.264 (vs ~64% software fallback before). Closes the
parity gap with MOZ_DISABLE_RDD_SANDBOX=1 baseline.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 17:58:57 +00:00

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

Mail

mfritsche@reauktion.de.

S
Description
ALARM aarch64 + Arch x86_64 + Debian arm64/amd64 overlay repo — published at packages.reauktion.de
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