PCRE JIT broken in PHP 7.2

Greetings, just an heads up, I started testing my project with PHP 7.2.0RC2 but it was causing a segmentation fault. I tracked down the problem to preg_match(), in particular when JIT is enabled and ONLY when running through Apache2 with event MPM. This problem does not occur with command line invocation. Here are the versions I tested, same environment: 7.1.9 works with PCRE JIT enabled 7.2.0alpha1 broken 7.2.0rc2 broken Build command line: ./configure \ --with-apxs2=/usr/local/apache2/bin/apxs \ --with-fpm-user=httpd \ --with-fpm-group=httpd \ --disable-cgi \ --enable-intl \ --with-layout=GNU \ --enable-maintainer-zts \ --with-gettext=static \ --with-iconv \ --with-mysqli=mysqlnd \ --enable-exif \ --with-openssl \ --with-curl The effect i observed is the following: var_dump(preg_match('/^a/', "a")); => int(0) var_dump(preg_match('/a/', "a")); => segmentation fault If you need any further information let me know. Kind regards -- Giovanni Giacobbi