Edit report at https://bugs.php.net/bug.php?id=53716&edit=1
ID: 53716
Comment by: avejidah at hotmail dot com
Reported by: anthon dot pang at gmail dot com
Summary: segfault in $stmt->execute()
Status: Feedback
Type: Bug
Package: PDO related
Operating System: Ubuntu 10.04
PHP Version: 5.3.5
Block user comment: N
Private report: N
New Comment:
I see that it's been a year since anyone posted here. This problem still
exists
in Ubuntu 12.04, fully updated
mysqlnd 5.0.8-dev
PHP 5.3.10-1ubuntu3.4 with Suhosin-Patch (cli) (built: Sep 12 2012 19:00:43)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2012 Zend Technologies
with Xdebug v2.1.0, Copyright (c) 2002-2010, by Derick Rethans
--------
$conStr = 'mysql:host=localhost;port=3306;dbname=MASKED;charset=utf8';
$username = 'MASKED';
$password = 'MASKED';
$userID = 3;
$pdo = new PDO($conStr, $username, $password,
array
(
PDO::ATTR_PERSISTENT => true,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_EMULATE_PREPARES => false // Change to true = no crash.
));
$stmt = $pdo->prepare
("
SELECT *
FROM Users u
WHERE userID = :userID
");
$stmt->bindValue(':userID', $userID);
echo "Bound...";
if ($stmt->execute())
{
echo 'Success';
}
else
throw new Exception('Failed to exec.');
----
Previous Comments:
------------------------------------------------------------------------
[2012-01-18 16:51:16] silvio dot ginter at volz-itsc dot de
+1 for me....
This problem still exists in PHP 5.3.9 under OpenSUSE 11.4. All packages were
taken from OpenSUSE Yast Repositories.
Output of Apache HTTP Daemon:
-----------------------------
[Wed Jan 18 16:45:06 2012] [notice] Apache/2.2.21 (Linux/SUSE) mod_ssl/2.2.21
OpenSSL/1.0.0c PHP/5.3.9 configured -- resuming normal operations
*** glibc detected *** /usr/sbin/httpd2-prefork: free(): invalid pointer:
0x00007f1902d75608 ***
Output of php -i | grep mysql
-----------------------------
/etc/php5/conf.d/mysql.ini,
/etc/php5/conf.d/mysqli.ini,
/etc/php5/conf.d/mysqlnd.ini,
/etc/php5/conf.d/pdo_mysql.ini,
mysql
Client API version => mysqlnd 5.0.8-dev - 20102224 - $Revision: 321634 $
mysql.allow_local_infile => On => On
mysql.allow_persistent => On => On
mysql.connect_timeout => 60 => 60
mysql.default_host => no value => no value
mysql.default_password => no value => no value
mysql.default_port => no value => no value
mysql.default_socket => /var/lib/mysql/mysql.sock => /var/lib/mysql/mysql.sock
mysql.default_user => no value => no value
mysql.max_links => Unlimited => Unlimited
mysql.max_persistent => Unlimited => Unlimited
mysql.trace_mode => Off => Off
mysqli
Client API library version => mysqlnd 5.0.8-dev - 20102224 - $Revision: 321634 $
mysqli.allow_local_infile => On => On
mysqli.allow_persistent => On => On
mysqli.default_host => no value => no value
mysqli.default_port => 3306 => 3306
mysqli.default_pw => no value => no value
mysqli.default_socket => /var/lib/mysql/mysql.sock => /var/lib/mysql/mysql.sock
mysqli.default_user => no value => no value
mysqli.max_links => Unlimited => Unlimited
mysqli.max_persistent => Unlimited => Unlimited
mysqli.reconnect => Off => Off
mysqlnd
mysqlnd => enabled
Version => mysqlnd 5.0.8-dev - 20102224 - $Revision: 321634 $
Tracing => d:t:x:O,/tmp/mysqlnd.trace
PDO drivers => mysql, odbc, pgsql, sqlite, sqlite2
pdo_mysql
Client API version => mysqlnd 5.0.8-dev - 20102224 - $Revision: 321634 $
pdo_mysql.default_socket => /var/lib/mysql/mysql.sock =>
/var/lib/mysql/mysql.sock
------------------------------------------------------------------------
[2011-06-13 03:33:31] [email protected]
Please try using this snapshot:
http://snaps.php.net/php5.3-latest.tar.gz
For Windows:
http://windows.php.net/snapshots/
------------------------------------------------------------------------
[2011-02-09 05:27:34] max at axismedia dot ru
In update to my previous message:
5. If i switch persistent connection off (PDO::ATTR_PERSISTENT => false)
everithing is fine too.
------------------------------------------------------------------------
[2011-02-09 05:15:32] max at axismedia dot ru
Looks like I have very similar problem. In short php 5.3 in CLI or Apach module
mode, PDO compiled againt mysqlnd crashes when using MySQL native prepared
queries with segmentation fault.
EXAMPLE SCRIPT
<?php
$driver_options = array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,.
PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'UTF8';",
PDO::ATTR_PERSISTENT => true,
PDO::MYSQL_ATTR_DIRECT_QUERY => false);
$sql = 'SELECT NOW()';
$pdo = new PDO('mysql:host=localhost;dbname=m_shop', 'max', null,
$driver_options);
$st = $pdo->prepare($sql, array(PDO::ATTR_CURSOR => PDO::CURSOR_FWDONLY));
print "before execute\n";
$st->execute();
print "after execute\n";
$st->closeCursor();
$pdo = null;
?>
Output:
office tmp # php bug.php
before execute
after execute
Segmentation fault (core dumped)
BACKTRACE
(gdb) bt
#0 0xb6acb02d in free () from /lib/libc.so.6
#1 0x082f8208 in _mysqlnd_pefree (ptr=0x0, persistent=1 '\001', tsrm_ls=0x0)
at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_debug.c:1062
#2 0x082e97c8 in php_mysqlnd_stmt_free_result_bind_pub (s=0x8b56024,
result_bind=0x8b24a60, tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2296
#3 0x082e9856 in mysqlnd_stmt_separate_result_bind (s=0x8b56024,
tsrm_ls=<value
optimized out>)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2029
#4 0x082e98d3 in php_mysqlnd_stmt_free_result_pub (s=0x8b56024,
tsrm_ls=0x891e280) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:1961
#5 0x081e8e11 in pdo_mysql_stmt_cursor_closer (stmt=0x8b24240,
tsrm_ls=0x891e280) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/pdo_mysql/mysql_statement.c:906
#6 0x081e4471 in zim_PDOStatement_closeCursor (ht=0, return_value=0x8b24154,
return_value_ptr=0x0, this_ptr=0x8b24170, return_value_used=0,
tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/pdo/pdo_stmt.c:2141
#7 0x0839edf1 in zend_do_fcall_common_helper_SPEC (execute_data=0x8b56058,
tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_vm_execute.h:316
#8 0x0839f2f1 in ZEND_DO_FCALL_BY_NAME_SPEC_HANDLER (execute_data=0x1,
tsrm_ls=0x8b24a54) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_vm_execute.h:421
#9 0x083786a6 in execute (op_array=0x8b23124, tsrm_ls=0x891e280) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_vm_execute.h:107
#10 0x08353317 in zend_execute_scripts (type=8, tsrm_ls=0x891e280, retval=0x0,
file_count=3) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend.c:1194
#11 0x082fcee9 in php_execute_script (primary_file=0xbfbfa920,
tsrm_ls=0x891e280) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/main/main.c:2265
#12 0x083d6fe6 in main (argc=2, argv=0xbfbfaa24) at /var/tmp/portage/dev-
lang/php-5.3.5/work/sapis-build/cli/sapi/cli/php_cli.c:1193
NOTES
1. If i do not call $st->closeCursor() i still get segmentation fault but with
a
bit different backtrace (same problem but on php environment shutdown):
#0 0xffffe424 in __kernel_vsyscall ()
#1 0xb6a4c401 in raise () from /lib/libc.so.6
#2 0xb6a4db42 in abort () from /lib/libc.so.6
#3 0xb6a87815 in ?? () from /lib/libc.so.6
#4 0xb6a8d6d1 in ?? () from /lib/libc.so.6
#5 0xb6a8ef38 in ?? () from /lib/libc.so.6
#6 0xb6a9203d in free () from /lib/libc.so.6
#7 0x082f8208 in _mysqlnd_pefree (ptr=0x0, persistent=48 '0', tsrm_ls=0x400)
at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_debug.c:1062
#8 0x082e97c8 in php_mysqlnd_stmt_free_result_bind_pub (s=0x8b56024,
result_bind=0x8b24a4c, tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2296
#9 0x082e9856 in mysqlnd_stmt_separate_result_bind (s=0x8b56024,
tsrm_ls=<value
optimized out>)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2029
#10 0x082e99a3 in php_mysqlnd_stmt_free_stmt_content_pub (s=0x8b56024,
tsrm_ls=0x891e280) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2125
#11 0x082eb441 in php_mysqlnd_stmt_net_close_priv (s=0x8b56024, implicit=0
'\000', tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2212
#12 0x082eaf9e in php_mysqlnd_stmt_dtor_pub (s=0x8b56024, implicit=6 '\006',
tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/mysqlnd/mysqlnd_ps.c:2239
#13 0x081e9d89 in pdo_mysql_stmt_dtor (stmt=0x8b24560, tsrm_ls=0x891e280) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/pdo_mysql/mysql_statement.c:64
#14 0x081e357c in free_statement (stmt=0x8b24560, tsrm_ls=<value optimized
out>)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/ext/pdo/pdo_stmt.c:2398
#15 0x081e36d8 in php_pdo_stmt_delref (stmt=0x0, tsrm_ls=0x891e280) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-build/cli/ext/pdo/pdo_stmt.c:2440
#16 0x081e36f2 in pdo_dbstmt_free_storage (stmt=0x8b24560, tsrm_ls=0x891e280)
at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-build/cli/ext/pdo/pdo_stmt.c:2446
#17 0x08374b9b in zend_objects_store_del_ref_by_handle_ex (handle=2,
handlers=0x891c180, tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_objects_API.c:220
#18 0x08374cab in zend_objects_store_del_ref (zobject=0x8b240d8,
tsrm_ls=0x891e280) at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_objects_API.c:172
#19 0x0835303e in _zval_dtor_func (zvalue=0x8b240d8) at /var/tmp/portage/dev-
lang/php-5.3.5/work/sapis-build/cli/Zend/zend_variables.c:52
#20 0x083483f9 in _zval_dtor (zval_ptr=0x8b244bc) at /var/tmp/portage/dev-
lang/php-5.3.5/work/sapis-build/cli/Zend/zend_variables.h:35
#21 _zval_ptr_dtor (zval_ptr=0x8b244bc) at /var/tmp/portage/dev-lang/php-
5.3.5/work/sapis-build/cli/Zend/zend_execute_API.c:443
#22 0x0835f42c in zend_hash_apply_deleter (ht=0x89204f0, p=0x8b244b0) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-build/cli/Zend/zend_hash.c:614
#23 0x0835f4d8 in zend_hash_reverse_apply (ht=0x89204f0, apply_func=0x8347a56
<zval_call_destructor>, tsrm_ls=0x891e280)
at /var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_hash.c:763
#24 0x08348c79 in shutdown_destructors (tsrm_ls=0x891e280) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-
build/cli/Zend/zend_execute_API.c:226
#25 0x08353dd2 in zend_call_destructors (tsrm_ls=0x891e280) at
/var/tmp/portage/dev-lang/php-5.3.5/work/sapis-build/cli/Zend/zend.c:874
#26 0x082fd893 in php_request_shutdown (dummy=0x0) at /var/tmp/portage/dev-
lang/php-5.3.5/work/sapis-build/cli/main/main.c:1587
#27 0x083d782b in main (argc=2, argv=0xbfbc8ae4) at /var/tmp/portage/dev-
lang/php-5.3.5/work/sapis-build/cli/sapi/cli/php_cli.c:1374
2. If i use emulated prepares (PDO::MYSQL_ATTR_DIRECT_QUERY => true) everyting
is fine.
3. If compile PDO against standard mysqlclientlib driver everything is fine.
4. Situation is reproduced at x86 and x86_64
------------------------------------------------------------------------
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the rest of the comments, please view the bug report online at
https://bugs.php.net/bug.php?id=53716
--
Edit this bug report at https://bugs.php.net/bug.php?id=53716&edit=1
