ID: 48754 Updated by: u...@php.net -Summary: mysql_close() crash php Reported By: busia at tiscali dot it -Status: Open +Status: Verified Bug Type: MySQL related -Operating System: Windows Vista +Operating System: * PHP Version: 5.3.0 -Assigned To: +Assigned To: mysql New Comment:
This one is funny. It may have existed since more than one year now and nobody has ever found it. Previous Comments: ------------------------------------------------------------------------ [2009-07-01 21:59:31] busia at tiscali dot it 1) The sleep function is not needed 2) The connection is successfull An other information: if I save in $a the mysql_connect return value and pass it to mysql_close php doesn't crash. In othe words this script works well: <? $a=mysql_connect('127.0.0.1', 'root', 'root'); mysql_close($a); ?> This instead crashes php: <? mysql_connect('127.0.0.1', 'root', 'root'); mysql_close(); ?> ------------------------------------------------------------------------ [2009-07-01 18:04:17] sjoerd-php at linuxonly dot nl Thank you for your bug report. I have a couple of questions regarding your bug report: 1. Is the sleep(2) needed to reproduce the bug? 2. Does the database connection succeed? (i.e. what is the return value of mysql_connect?) ------------------------------------------------------------------------ [2009-07-01 12:30:54] busia at tiscali dot it Description: ------------ This simple code crash php. This is the Debug diagnostic tool output: In php__PID__5128__Date__07_01_2009__Time_02_22_25PM__909__Second_Chance_Exception_C0000005.dmp the assembly instruction at php_mysql!zif_mysql_close+92 in C:\Program Files\PHP\ext\php_mysql.dll from The PHP Group has caused an access violation exception (0xC0000005) when trying to read from memory location 0x00000000 on thread 0 Report for php__PID__5128__Date__07_01_2009__Time_02_22_25PM__909__Second_Chance_Exception_C0000005.dmp Type of Analysis Performed Crash Analysis Machine Name PC-UTENTE Operating System Windows Vista Service Pack 1 Number Of Processors 2 Process ID 5128 Process Image C:\Program Files\PHP\php.exe System Up-Time 00:13:11 Process Up-Time 00:00:02 Thread 0 - System ID 5132 Entry point php!mainCRTStartup Create time 01/07/2009 14.22.23 Time spent in user mode 0 Days 0:0:0.31 Time spent in kernel mode 0 Days 0:0:0.62 Function Arg 1 Arg 2 Arg 3 Source php_mysql!zif_mysql_close+92 00000000 02a0d350 00000000 php5ts!zend_do_fcall_common_helper_SPEC+946 00000000 02a40070 00052fd0 php5ts!ZEND_DO_FCALL_SPEC_CONST_HANDLER+130 00c0fbd4 00052fd0 00c0fe70 php5ts!execute+29e 02a40070 00052f00 00000000 php5ts!zend_execute_scripts+f6 00000008 00052fd0 00000000 php5ts!php_execute_script+22d 00c0fe70 00052fd0 00000000 php!main+bf1 00000002 00052f68 00051888 php!mainCRTStartup+e3 7ffdb000 00c0ffd4 77bee4b6 kernel32!BaseThreadInitThunk+e 7ffdb000 770bbeaf 00000000 ntdll!__RtlUserThreadStart+23 00402d78 7ffdb000 00000000 ntdll!_RtlUserThreadStart+1b 00402d78 7ffdb000 00000000 PHP_MYSQL!ZIF_MYSQL_CLOSE+92In php__PID__5128__Date__07_01_2009__Time_02_22_25PM__909__Second_Chance_Exception_C0000005.dmp the assembly instruction at php_mysql!zif_mysql_close+92 in C:\Program Files\PHP\ext\php_mysql.dll from The PHP Group has caused an access violation exception (0xC0000005) when trying to read from memory location 0x00000000 on thread 0 Module Information Image Name: C:\Program Files\PHP\ext\php_mysql.dll Symbol Type: PDB Base address: 0x01c30000 Time Stamp: Mon Jun 29 22:24:49 2009 Checksum: 0x00000000 Comments: Thanks to Zeev Suraski, Zak Greant, Georg Richter COM DLL: False Company Name: The PHP Group ISAPIExtension: False File Description: MySQL ISAPIFilter: False File Version: 5.3.0 Managed DLL: False Internal Name: MYSQL extension VB DLL: False Legal Copyright: Copyright © 1997-2009 The PHP Group Loaded Image Name: php_mysql.dll Legal Trademarks: PHP Mapped Image Name: C:\Program Files\PHP\ext\php_mysql.dll Original filename: php_mysql.dll Module name: php_mysql Private Build: Single Threaded: False Product Name: PHP Module Size: 44,00 KBytes Product Version: 5.3.0 Symbol File Name: C:\Users\utente\Desktop\php-debug-pack-5.3.0-Win32-VC6-x86\php_mysql.pdb Special Build: & Reproduce code: --------------- <?php sleep(2); mysql_connect('127.0.0.1', 'root', 'root'); mysql_close(); ?> ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=48754&edit=1