Swoole v6 on php 8.4 isn't working with io_uring enabled

[mleczakm]

With swoole installed like this:

FROM php:8.4-cli-alpine

WORKDIR /app

RUN --mount=type=bind,from=mlocati/php-extension-installer:latest,source=/usr/bin/install-php-extensions,target=/usr/local/bin/install-php-extensions \
    install-php-extensions swoole

Swoole is throwing warnings when coroutines are enabled:
php-1 | [2025-01-24 17:32:07 *12.1] WARNING Iouring::Iouring() (ERRNO 502): Create io_uring failed, the error code is 1
Printing to stdout results in errors like:
Notice: fwrite(): Write of 52 bytes failed with errno=0 No error information in /app/src/Log/StdOutLogger.php on line 23
without coroutines or with io_uring disabled it is working properly.

[mrVrAlex]

It is not a problem of swoole. It seems you used docker and usual it disable access to io_uring calls (to host system).
Just run image container with option --security-opt like this:
docker run -d --security-opt seccomp=unconfined your_image
for docker compose

    security_opt:
      - seccomp:unconfined

[mleczakm]

Thanks, it worked!