Bug #68611 [Opn]: Segmentation fault with deep linked list

From: Date: Mon, 15 Dec 2014 14:11:42 +0000
Subject: Bug #68611 [Opn]: Segmentation fault with deep linked list
References: 1  Groups: php.bugs 
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Edit report at https://bugs.php.net/bug.php?id=68611&edit=1

 ID:                 68611
 Updated by:         derick@php.net
 Reported by:        reen at alphacomm dot nl
 Summary:            Segmentation fault with deep linked list
 Status:             Open
 Type:               Bug
 Package:            Reproducible crash
 Operating System:   Ubuntu
 PHP Version:        5.6.3
 Block user comment: N
 Private report:     N

 New Comment:

Note: this also happens without opcache and without xdebug


Previous Comments:
------------------------------------------------------------------------
[2014-12-15 13:16:13] reen at alphacomm dot nl

Description:
------------
Tested against:

PHP 5.6.3 (cli) (built: Nov 20 2014 10:45:50) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.6.0, Copyright (c) 1998-2014 Zend Technologies
with Xdebug v2.2.6, Copyright (c) 2002-2014, by Derick Rethans

AND

PHP 5.5.9-1ubuntu4.5 (cli) (built: Oct 29 2014 11:59:10) 
Copyright (c) 1997-2014 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
    with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend Technologies
    with Xdebug v2.2.3, Copyright (c) 2002-2013, by Derick Rethans

Test script:
---------------
<?php
class A {
    public $next;
}

$first = $a = new A();
for ($i = 0; $i < 100000; $i++) {
    $a = $a->next = new A();
}

echo 'Complete'.PHP_EOL;

Expected result:
----------------
Complete

Actual result:
--------------
Complete
Segmentation fault: 11



Complete
Segmentation fault (core dumped)


------------------------------------------------------------------------



--
Edit this bug report at https://bugs.php.net/bug.php?id=68611&edit=1

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