Hello,
That made one week that I fights against mem leaks in PHP and I already made a patch which corrects one of them.
The biggest problem to which I face is to explain these leaks bus makes some I use my own SAPI prepared for an unknown HTTPd which is itself Fully-threaded and these leaks are visibles only in threaded environment.
To regulate my problem I decided to make a program which insulates and tests any PHP scripts and makes it possible to see whether this one generates a leak in an threaded environment.
The program consists of a modification of the SAPI embed (which I had already modified but there I still improved it without wanting it :d) and a small program which emulates the operation of a fully-threaded httpd server.
I had posted a mail in connection with a leak in PG(last_error_message) & PG(last_error_file). Now you can reproduce the leak.
I identified 4 others but it is necessary that I arrive has to find the exact script which reproduces the leak. I keep you informed.
In some case you can have a leak information coming from pthread_create() do not take care, that depends of your NPTL (Native Posix Thread Library) version.
If you have any questions or advises i am available thanks.
The source code http://badcode.be/~descript/PHP/php_leak_tester.tar.gz
Installation : http://badcode.be/~descript/PHP/php_leak_tester/README
The patch for the first leak you can see with test/constant.php : http://badcode.be/~descript/PHP/PHP_5_2-php-main.diff
Michael Vergoz