#36862 [Com]: *** glibc detected *** double free or corruption

ID: 36862 Comment by: israel at ochosting dot com Reported By: nick at sterlingintegrated dot com Status: No Feedback Bug Type: MySQL related Operating System: Fedora Core 3 (FC3) PHP Version: 5.1.2 New Comment: I had this problem on something similar, It had to do i believe something with Zend Optimizer, and an extension to Zend Optimizer (eAccelerator). A Recompile of the same version of PHP without the Zend and the Extension allowed our affected pages to work. I dont have the core dump files. But this may help someone else get on the right track. (PS.. Cpanel/WHM Box, Apache 1.3x, and PHP 4.4.1) Previous Comments: ------------------------------------------------------------------------ [2006-04-03 01:00:05] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2006-03-26 12:36:25] tony2001@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ [2006-03-26 12:19:57] nick at sterlingintegrated dot com Description: ------------ After an upgrade of MySQL from 3.23 to 4.0, I kept getting "mysql_connect not a valid function call". So I recompiled php. Then I got a blank scrren on the browser. When run, "~php ./test.php" produces an error message (which can't be seen in the browser). The solution for me was to "export MALLOC_CHECK=0;" on the command line, so glibc stops going crazy then restart httpd. I set this env variable in my .bash_profile. It seems to work fine so far. Reproduce code: --------------- <?php error_reporting(E_ALL); $link = mysql_connect('localhost', 'user', 'password'); if (!$link) { die('Could not connect: ' . mysql_error()); } echo 'Connected successfully'; mysql_close($link); ?> Expected result: ---------------- Connected successfully Actual result: -------------- *** glibc detected *** double free or corruption ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=36862&edit=1