[php-src] Issue #9754: SaltStack (using Python subprocess) hangs when running php-fpm 8.1.11

Issue: https://github.com/php/php-src/issues/9754 Author: bgdnlp ### Description I am cross-posting https://github.com/saltstack/salt/issues/62891 because I'm not sure what's happening, but it is related to PHP 8.1.11 and 8.0.24, previous versions worked fine. I tested on Ubuntu with Python 3.10 and FreeBSD with Python 3.9. Running ``` salt-call -l all cmd.run 'php-fpm8.1' ``` on Ubuntu or the equivalent on FreeBSD just hangs. It didn't use to do that. To reproduce: - start an Ubuntu instance - install PHP 8.1: - apt-get install software-properties-common - sudo apt-get install software-properties-common - sudo add-apt-repository ppa:ondrej/php - sudo apt-get update - sudo apt install php8.1-fpm - install SaltStack: - sudo apt install python3-pip - sudo pip3 install --upgrade salt - sudo salt-minion <- run once. it will set up /etc, then it's not needed any more - run some random command with SaltStack, just to see how it should work: - sudo salt-call -l all cmd.run 'ls' - run php-fpm with SaltStack, this should just hang, although php-fpm does start: - sudo salt-call -l all cmd.run 'php-fpm8.1' SaltStack hangs when it gets to this line: https://github.com/saltstack/salt/blob/427718c5aed40b376785ebc4813f5ccd18e07272/salt/utils/timed_subprocess.py#L90 . At that point php-fpm is already running, Salt is just trying to [interact](https://docs.python.org/3/library/subprocess.html#subprocess.Popen.communicate) with php-fpm. I wasn't able to reproduce in Python directly. ### PHP Version PHP 8.1.11 and PHP 8.0.24 ### Operating System FreeBSD 13.1 and Ubuntu 22.04