Re: PCRE JIT stack size limit

> On 16.03.2016, at 21:38, Anatol Belski <anatol.php@belski.net> wrote: > > Hi, > >> -----Original Message----- >> From: David Zuelke [mailto:dz@heroku.com] >> Sent: Tuesday, March 15, 2016 11:58 PM >> To: Anatol Belski <anatol.php@belski.net> >> Cc: Christoph Becker <cmbecker69@gmx.de>; Pierre Joye >> <pierre.php@gmail.com>; PHP internals <internals@lists.php.net> >> Subject: Re: [PHP-DEV] PCRE JIT stack size limit >> >> Sure. So composer creates patterns to parse a file dynamically; I have not >> figured out why it only happens for some composer.json files (or maybe it >> happens for all of them and I just have not noticed), but this example here I >> extracted from a reproducibly failing "composer require" run; it runs into the >> JIT >> stack size limit on PHP 7 while it works fine on 5.x: >> >> https://gist.github.com/dzuelke/cc64a630c14416eda3e9 >> > I've just tried this on Debian Jessie and on Windows with the latest 7.0.x builds, in both > cases the error is PREG_BACKTRACK_LIMIT_ERROR. I'd be next asking you to check the > configuration. Runtime like system or ini, or build config can affect this. Anyway, I don't see > an issue with PCRE JIT at the moment. Sorry, I simplified the example too far. Updated it again to throw a JIT stack limit error again (but works fine with "php -dpcre.jit=0"): https://gist.github.com/dzuelke/cc64a630c14416eda3e9/de7b7293798ac57b4f75d822dc22a625be0fe9df David