Description
This issue was originally opened in the FrankenPHP repo, but I'm posting a minimal reproducer here as well since I'm not sure how to best debug this.
Basically, specific weird match statements will lead to hanging+crash in the alpine docker image (bookworm doesn't have this issue). The original file where this first was observed is this enum, but I created a minimal reproducer here:
https://github.com/AlliBalliBaba/franke-alpine-zts-crash
Hanging + crashing will only happen if the non-debug version of PHP is installed. As soon as I'm using a debug version like this, the crash will not happen anymore (essentially --with-debug when building PHP will prevent the crash).
Similarly, disabling opcache will also prevent the crash.
PHP Version
PHP 8.4.10 (cli) (built: Jul 3 2025 23:01:28) (ZTS)
Copyright (c) The PHP Group
Built by https://github.com/docker-library/php
Zend Engine v4.4.10, Copyright (c) Zend Technologies
with Zend OPcache v8.4.10, Copyright (c), by Zend Technologies
FrankenPHP v1.7.0 PHP 8.4.10 Caddy v2.10.0 h1:fonubSaQKF1YANl8TXqGcn4IbIRUDdfAkpcsfI/vX5U=
Operating System
Alpine 3.22.0
Description
This issue was originally opened in the FrankenPHP repo, but I'm posting a minimal reproducer here as well since I'm not sure how to best debug this.
Basically, specific weird match statements will lead to hanging+crash in the alpine docker image (bookworm doesn't have this issue). The original file where this first was observed is this enum, but I created a minimal reproducer here:
https://github.com/AlliBalliBaba/franke-alpine-zts-crash
Hanging + crashing will only happen if the non-debug version of PHP is installed. As soon as I'm using a debug version like this, the crash will not happen anymore (essentially
--with-debugwhen building PHP will prevent the crash).Similarly, disabling opcache will also prevent the crash.
PHP Version
Operating System
Alpine 3.22.0