From:
Operating system: Debian
PHP version: 5.4.0RC5
Package: Reproducible crash
Bug Type: Bug
Bug description:Segfault
Description:
------------
I can fix this segfault by either removing the ATTR_PERSISTENT option, or
by
assigning parent::prepare to a local variable (i.e. $stmt =
parent::prepare('...'))
Also worth nothing I had to compile PHP as shared due to a bug when trying
to
compile the extension with mysqlnd which is filed in a separate report.
Linux localdev 3.1.0-1-amd64 #1 SMP Fri Dec 23 16:37:11 UTC 2011 x86_64
GNU/Linux
$ php -v
PHP 5.4.0RC5 (cli) (built: Jan 10 2012 19:42:22)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
$ phpize -v
Configuring for:
PHP Api Version: 20100412
Zend Module Api No: 20100525
Zend Extension Api No: 220100525
$ cat /etc/issue
Debian GNU/Linux wheezy/sid \n \l
$ mysql --version
mysql Ver 14.14 Distrib 5.1.58, for debian-linux-gnu (x86_64) using
readline 6.2
Test script:
---------------
<?php
class BuggedPDO extends PDO {
protected $stmt = null;
public function __construct() {
$options = array(
\PDO::ATTR_PERSISTENT => true,
\PDO::ATTR_ERRMODE => \PDO::ERRMODE_EXCEPTION,
);
try {
parent::__construct('mysql:dbname=testdb;host=localhost', 'testuser',
'testpass', $options);
$this->stmt = parent::prepare('select * from table');
} catch (\Exception $ex) {
var_dump($ex);
}
}
}
$test = new BuggedPDO();
Expected result:
----------------
A proper resource in $this->stmt
Actual result:
--------------
Jan 11 10:26:00 kernel: [ 956.330577] php-fpm[2255]: segfault at 0 ip
0000000000729beb sp 00007fffad56c8e0 error 4 in php-fpm[400000+76d000]
--
Edit bug report at https://bugs.php.net/bug.php?id=60715&edit=1
--
Try a snapshot (PHP 5.4):
https://bugs.php.net/fix.php?id=60715&r=trysnapshot54
Try a snapshot (PHP 5.3):
https://bugs.php.net/fix.php?id=60715&r=trysnapshot53
Try a snapshot (trunk):
https://bugs.php.net/fix.php?id=60715&r=trysnapshottrunk
Fixed in SVN:
https://bugs.php.net/fix.php?id=60715&r=fixed
Fixed in SVN and need be documented:
https://bugs.php.net/fix.php?id=60715&r=needdocs
Fixed in release:
https://bugs.php.net/fix.php?id=60715&r=alreadyfixed
Need backtrace:
https://bugs.php.net/fix.php?id=60715&r=needtrace
Need Reproduce Script:
https://bugs.php.net/fix.php?id=60715&r=needscript
Try newer version:
https://bugs.php.net/fix.php?id=60715&r=oldversion
Not developer issue:
https://bugs.php.net/fix.php?id=60715&r=support
Expected behavior:
https://bugs.php.net/fix.php?id=60715&r=notwrong
Not enough info:
https://bugs.php.net/fix.php?id=60715&r=notenoughinfo
Submitted twice:
https://bugs.php.net/fix.php?id=60715&r=submittedtwice
register_globals:
https://bugs.php.net/fix.php?id=60715&r=globals
PHP 4 support discontinued:
https://bugs.php.net/fix.php?id=60715&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=60715&r=dst
IIS Stability:
https://bugs.php.net/fix.php?id=60715&r=isapi
Install GNU Sed:
https://bugs.php.net/fix.php?id=60715&r=gnused
Floating point limitations:
https://bugs.php.net/fix.php?id=60715&r=float
No Zend Extensions:
https://bugs.php.net/fix.php?id=60715&r=nozend
MySQL Configuration Error:
https://bugs.php.net/fix.php?id=60715&r=mysqlcfg
