Bug #77162 [Com]: endless-loop script segfaults instead of exit with a proper error

Edit report at https://bugs.php.net/bug.php?id=77162&edit=1 ID: 77162 Comment by: maggus dot staab at googlemail dot com Reported by: maggus dot staab at googlemail dot com Summary: endless-loop script segfaults instead of exit with a proper error Status: Feedback Type: Bug Package: *General Issues Operating System: ubuntu16 lts PHP Version: 7.0.32 Assigned To: cmb Block user comment: N Private report: N New Comment: running the very same test on ubuntu18 with php7.2 works without a problem. as soon as I disable blackfire on my php 7.0.x it also works without a segfault. Will report it to blackfire then. Previous Comments: ------------------------------------------------------------------------ [2018-11-15 10:46:02] nikic@php.net This is almost certainly due to the blackfire extension, which will hook zend_execute and thus force call stack recursion rather than VM recursion. ------------------------------------------------------------------------ [2018-11-15 10:38:27] cmb@php.net Please also try with any of the actively supported PHP versions[1]. [1] <http://php.net/supported-versions.php> ------------------------------------------------------------------------ [2018-11-15 10:10:43] sjon at hortensius dot net Did you try without extensions? It works pretty good here https://3v4l.org/p07m1 ------------------------------------------------------------------------ [2018-11-15 10:03:56] maggus dot staab at googlemail dot com Description: ------------ the following code segfaults on the php-cli (and on mod_php) but I expected a proper error to happen mstaab@mst16:/tmp$ php test.php Speicherzugriffsfehler (Speicherabzug geschrieben) mstaab@mst16:/tmp$ php -v PHP 7.0.32-4+ubuntu16.04.1+deb.sury.org+1 (cli) (built: Nov 4 2018 05:10:29) ( NTS ) Copyright (c) 1997-2017 The PHP Group Zend Engine v3.0.0, Copyright (c) 1998-2017 Zend Technologies with Zend OPcache v7.0.32-4+ubuntu16.04.1+deb.sury.org+1, Copyright (c) 1999-2017, by Zend Technologies with blackfire v1.23.1~linux-x64-non_zts70, https://blackfire.io, by Blackfire Test script: --------------- <?php // test.php class a { private $prop; public function __construct() { $this->prop = new a(); } } new a(); Expected result: ---------------- no segfault Actual result: -------------- segfaults ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77162&edit=1