Re: PCRE JIT stack size limit

> On 17.03.2016, at 05:22, David Zuelke <dz@heroku.com> wrote: > >> 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 Were you able to reproduce this? :) David