Bug #55334 [NEW]: MySQLi make mod_php crash on stress test

From: Operating system: Windows 2008r2 x64 PHP version: 5.3.7RC4 Package: MySQLi related Bug Type: Bug Bug description:MySQLi make mod_php crash on stress test Description: ------------ mod_php crashes on stress test (ab -n 10000 -c 20) due to MySqli (the use of the mysql extension don't make it crash) Test script: --------------- <h1>Test MySqli</h1> <ul> <?php $con = mysqli_connect('127.0.0.1', 'root', 'secret', 'test'); $stmt = mysqli_query($con, 'SELECT * FROM test'); while($row = mysqli_fetch_array($stmt, MYSQLI_ASSOC)) { echo '<li>' . $row['id'] . ' - ' . $row['data'] . '</li>'; } ?> </ul> Actual result: -------------- Type of Analysis Performed Crash Analysis Machine Name CHALOPIN-2008R2 Operating System Unexpected Service Pack 1 Number Of Processors 8 Process ID 3444 Process Image D:\SysperTec\webstack\Apache2\bin\httpd.exe System Up-Time 01:19:31 Process Up-Time 00:00:01 Thread 16 - System ID 3560 Entry point msvcr90!_endthreadex+6f Create time 01/08/2011 10:35:10 Time spent in user mode 0 Days 0:0:0.0 Time spent in kernel mode 0 Days 0:0:0.0 Function Arg 1 Arg 2 Arg 3 Source php5ts!zend_register_internal_class_ex+b77 04ae90a0 6f21e664 016b02f0 php5ts!_efree+2e 016b02f0 0544ed20 6f223957 php5ts!_zval_ptr_dtor+54 0544f01c 0544ef50 0544f2b8 php5ts!zend_hash_destroy+27 0544dbe0 04a94b58 72451201 php5ts!zend_object_std_dtor+2b 0544f2b8 04a94b58 05442e4c php_mysqli!php_clear_mysql+d1 0544f2b8 04a94b58 04a94b58 php5ts!zend_objects_store_del_ref_by_handle_ex+1c1 00000001 72465600 04a94b58 php5ts!zend_objects_store_del_ref+1a 0544e8b0 04a94b58 00000000 php5ts!_zval_dtor_func+7f 0544e8b0 0544dce0 6f223ad2 php5ts!_zval_ptr_dtor+4b 0544dcec 6f223d83 04a94b58 php5ts!zend_hash_clean+112 04a94b58 0262fa9c 0262fa8c php5ts!zend_hash_reverse_apply+53 04ae7218 6f21deb0 04a94b58 php5ts!shutdown_destructors+77 04a94b58 04a94b58 0262fae0 php5ts!zend_call_destructors+42 04a94b58 04a94b58 00000000 php5ts!php_request_shutdown+f0 00000000 00000004 0156df20 php5apache2_2!zm_info_apache+1801 01d55f30 01d55f30 00cfb3e8 libhttpd!ap_run_handler+25 00000000 00000000 00000000 PHP5TS!ZEND_REGISTER_INTERNAL_CLASS_EX+B77In httpd__PID__3444__Date__08_01_2011__Time_10_35_10AM__368__Second_Chance_Exception_C0000005.dmp the assembly instruction at php5ts!zend_register_internal_class_ex+b77 in d:\SysperTec\webstack\php\php5ts.dll from The PHP Group has caused an access violation exception (0xC0000005) when trying to read from memory location 0x3c7edce0 on thread 16 Module Information Image Name: d:\SysperTec\webstack\php\php5ts.dll Symbol Type: PDB Base address: 0x6f190000 Time Stamp: Thu Jul 28 14:38:06 2011 Checksum: 0x005b1351 Comments: COM DLL: False Company Name: The PHP Group ISAPIExtension: False File Description: PHP Script Interpreter ISAPIFilter: False File Version: 5.3.7RC4 Managed DLL: False Internal Name: PHP Script Interpreter VB DLL: False Legal Copyright: Copyright © 1997-2010 The PHP Group Loaded Image Name: php5ts.dll Legal Trademarks: PHP Mapped Image Name: Original filename: php5ts.dll Module name: php5ts Private Build: Single Threaded: False Product Name: PHP Module Size: 5,76 MBytes Product Version: 5.3.7RC4 Symbol File Name: D:\SysperTec\webstack\php-debug\php5ts.pdb Special Build: & -- Edit bug report at https://bugs.php.net/bug.php?id=55334&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=55334&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=55334&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=55334&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=55334&r=fixed Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55334&r=needdocs Fixed in release: https://bugs.php.net/fix.php?id=55334&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=55334&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=55334&r=needscript Try newer version: https://bugs.php.net/fix.php?id=55334&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=55334&r=support Expected behavior: https://bugs.php.net/fix.php?id=55334&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=55334&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=55334&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=55334&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=55334&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=55334&r=dst IIS Stability: https://bugs.php.net/fix.php?id=55334&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=55334&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=55334&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=55334&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=55334&r=mysqlcfg