The futex facility returned an unexpected error code.

[judahpaul16]

Description
I'm getting The futex facility returned an unexpected error code. when I review the logs.
Possibly related to #698, #701, #712, or #725? But I tried the solutions suggested in those issues.
Passing --username "my_username" --password "pass", not using quotes in the config file, updating to the latest version

To Reproduce
Exact steps to reproduce involves installing GPT Home from the Dockerfile but minimally you should be able to reproduce the issue by downloading the binary of spotifyd v0.3.5 and running it with /usr/local/bin/spotifyd --no-daemon --verbose. Unless there is something about my Docker environment that is causing the issue, that shouldn't be necessary but I will mention it just in case.

Dockerfile

FROM ubuntu:23.04

# Set non-interactive installation to avoid tzdata prompt
ENV DEBIAN_FRONTEND=noninteractive

# Install dependencies
RUN apt-get update && apt-get install -y \
    ca-certificates software-properties-common wget tar 

# Install ARMhf base libraries
RUN dpkg --add-architecture armhf

# Install necessary packages
RUN /bin/bash -c "yes | add-apt-repository universe && \
    dpkg --add-architecture armhf && apt-get update && \
    apt-get install -y --no-install-recommends supervisor nano neovim \
        avahi-daemon avahi-utils libnss-mdns dbus iputils-ping \
        build-essential curl git libssl-dev zlib1g-dev libbz2-dev libreadline-dev \
        libsqlite3-dev llvm libncursesw5-dev xz-utils tk-dev libraspberrypi-bin \
        libxml2-dev libxmlsec1-dev libffi-dev liblzma-dev libjpeg-dev \
        portaudio19-dev alsa-utils libasound2-dev i2c-tools \
        python3 python3-pip python3-dev python3-smbus python3-venv \
        jackd2 libogg0 libflac-dev flac libespeak1 cmake openssl expect \
        nodejs libc6:armhf libdbus-1-3:armhf libasound2:armhf && rm -rf /var/lib/apt/lists/*"

# Download and setup spotifyd binary from latest GitHub release
RUN wget https://github.com/Spotifyd/spotifyd/releases/latest/download/spotifyd-linux-armhf-full.tar.gz && \
    tar xzf spotifyd-linux-armhf-full.tar.gz -C /usr/local/bin && \
    rm spotifyd-linux-armhf-full.tar.gz

# Create Spotifyd configuration (this is just a basic config; adjust accordingly)
RUN mkdir -p /root/.config/spotifyd && { \
    echo '[global]'; \
    echo 'backend = "alsa" # Or pulseaudio if you use it'; \
    echo 'device_name = "GPT Home" # Name your device shows in Spotify Connect'; \
    echo 'bitrate = 320 # Choose bitrate from 96/160/320 kbps'; \
    echo 'cache_path = "/root/.spotifyd/cache"'; \
    echo 'discovery = false'; \
} > /root/.config/spotifyd/spotifyd.conf

# Install Node.js
RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash - && \
    apt-get install -y nodejs

# Prepare application directory
WORKDIR /app
COPY . /app

# Copy alarm sound to /usr/share/sounds
RUN mkdir -p /usr/share/sounds && cp /app/contrib/alarm.wav /usr/share/sounds

# Create virtual environment and install dependencies
RUN python3 -m venv /env && \
    /env/bin/pip install --no-cache-dir --use-pep517 -r src/requirements.txt

# Start D-Bus system bus
RUN dbus-uuidgen > /var/lib/dbus/machine-id
RUN mkdir -p /var/run/dbus && dbus-daemon --system

# Set up Avahi
RUN sed -i 's/#allow-interfaces=eth0/allow-interfaces=eth0/' /etc/avahi/avahi-daemon.conf
RUN sed -i 's/#host-name=.*$/host-name=gpt-home/g' /etc/avahi/avahi-daemon.conf
RUN echo 'service dbus start && /usr/sbin/avahi-daemon --no-rlimits' > /usr/local/bin/start_avahi.sh && \
    chmod +x /usr/local/bin/start_avahi.sh

# Manage services with Supervisor
RUN mkdir -p /var/log/supervisor && \
    mkdir -p /etc/supervisor/conf.d && { \
    echo '[supervisord]'; \
    echo 'nodaemon=true'; \
    echo 'logfile=/dev/null'; \
    echo 'logfile_maxbytes=0'; \
    echo ''; \
    echo '[program:avahi]'; \
    echo 'command=/bin/bash /usr/local/bin/start_avahi.sh'; \
    echo 'stdout_logfile=/dev/fd/1'; \
    echo 'stdout_logfile_maxbytes=0'; \
    echo 'redirect_stderr=true'; \
    echo 'environment=HOME="/root",USER="root"'; \
    echo ''; \
    echo '[program:spotifyd]'; \
    echo 'command=/usr/local/bin/spotifyd --no-daemon'; \
    echo 'stdout_logfile=/var/log/spotifyd.log'; \
    echo 'stdout_logfile_maxbytes=1MB'; \
    echo 'redirect_stderr=true'; \
    echo ''; \
    echo '[program:app]'; \
    echo 'command=bash -c "source /env/bin/activate && cd src && python /app/src/app.py 2>/dev/null"'; \
    echo 'stdout_logfile=/dev/null'; \
    echo 'stdout_logfile_maxbytes=0'; \
    echo 'redirect_stderr=true'; \
    echo 'startsecs=0'; \
    echo 'autorestart=true'; \
    echo 'stopsignal=INT'; \
    echo 'stopasgroup=true'; \
    echo 'killasgroup=true'; \
    echo 'environment=HOME="/root",USER="root"'; \    
    echo ''; \
    echo '[program:web-interface]'; \
    echo 'command=bash -c "source /env/bin/activate && cd src && uvicorn backend:app --host 0.0.0.0 --port 8000"'; \
    echo 'stdout_logfile=/dev/fd/1'; \
    echo 'stdout_logfile_maxbytes=0'; \
    echo 'redirect_stderr=true'; \
} > /etc/supervisor/conf.d/supervisord.conf 

# Expose the Uvicorn port
EXPOSE 8000

# Start services with Supervisor
CMD ["/usr/bin/supervisord"]

Expected behavior
Spotifyd runs normally.

Logs

Click to show logs

Loading config from "/root/.config/spotifyd/spotifyd.conf"
CliConfig { config_path: None, no_daemon: true, verbose: true, pid: None, shared_config: SharedConfigValues { username: Some("taken out for privacy"), username_cmd: None, password: Some("taken out for privacy"), password_cmd: None, use_keyring: false, use_mpris: None, dbus_type: None, on_song_change_hook: None, cache_path: Some("/home/root/.spotifyd/cache"), no-audio-cache: false, backend: Some(Alsa), volume_controller: None, device: None, control: None, mixer: None, device_name: Some("GPT Home"), bitrate: Some(Bitrate320), audio_format: None, initial_volume: None, volume_normalisation: false, normalisation_pregain: None, zeroconf_port: None, proxy: None, device_type: None, autoplay: false, max_cache_size: None } }
Retrieving user shell through libc calls
Found user shell: Some("/bin/bash")
No proxy specified
registering event source with poller: token=Token(2147483649), interests=READABLE
Using software volume controller.
The futex facility returned an unexpected error code.
Aborted (core dumped)

Compilation flags

• dbus_mpris
• dbus_keyring
• alsa_backend
• portaudio_backend
• pulseaudio_backend
• rodio_backend

Versions (please complete the following information):

• OS: Ubuntu Server 23.04
• Spotifyd: v0.3.5
• cargo: N/A

Additional context
Originated as an issue in the GPT Home project.

[eladyn]

Unfortunately, the Dockerfile refuses to build for me currently (maybe some temporary mirror server issue, not sure). However, I found rust-lang/rust#124920, which at least has the same message. Does it also happen when running without --verbose?

[eladyn]

If you got any further feedback, feel free to re-open!