ID: 50111
Updated by: datib...@php.net
Reported By: datib...@php.net
-Status: Feedback
+Status: Open
Bug Type: Streams related
Operating System: Linux
PHP Version: 5.2.11
New Comment:
<?php
echo "This is PHP ", phpversion(),PHP_EOL;
ini_set("memory_limit", "0");
for ($i=0;$i<2000;++$i) {
$x = stream_context_create(array());
unset($x);
}
echo "Done", PHP_EOL;
?>
----------------
$ /usr/local/php-5.1.0/bin/php lala.php
This is PHP 5.1.0
Done
----------------
$ /usr/local/php-5.1.1/bin/php lala.php
This is PHP 5.1.1
Done
----------------
$ /usr/local/php-5.1.2/bin/php lala.php
This is PHP 5.1.2
Done
----------------
$ /usr/local/php-5.2.9/bin/php lala.php
This is PHP 5.2.9
Fatal error: Allowed memory size of 262144 bytes exhausted at
/usr/local/src/php-5.2.9/Zend/zend_list.c:47 (tried to allocate 12
bytes) in /home/tjerk/lala.php on line 7
----------------
$ /usr/local/php-5.2.11/bin/php lala.php
This is PHP 5.2.11
Fatal error: Allowed memory size of 262144 bytes exhausted at
/usr/local/src/php-5.2.11/main/streams/streams.c:1945 (tried to allocate
16 bytes) in /home/tjerk/lala.php on line 7
----------------
$ /usr/local/php-5.3/bin/php lala.php
This is PHP 5.3.0RC3-dev
Done
Previous Comments:
------------------------------------------------------------------------
[2009-11-18 18:14:02] j...@php.net
What code? There is no such script in this report that crashes. Not
even when changed to loop thousands of times. Not with PHP_5_2 or
PHP_5_3 or HEAD branches. So please, come up with a proper reproducing
script.
------------------------------------------------------------------------
[2009-11-18 14:05:35] datib...@php.net
I've change the summary a bit to avoid confusion with an actual memory
leak (those that would get reported by php at the end of execution in
debug mode).
When kept running (using cli), an endless loop of given code would
eventually result in an out-of-memory error.
In PHP 5.3.x this no longer happens, so it seems that this has been
rectified before, just not in this branch. It would be nice if the same
fix could be applied here.
------------------------------------------------------------------------
[2009-11-09 17:11:31] j...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
------------------------------------------------------------------------
[2009-11-08 23:27:05] datib...@php.net
Test code changed to (added the unset() statement):
$m0 = $m1 = $i = 0;
$c = null;
while ($i<5) {
$m0 = memory_get_usage();
$c = stream_context_create();
unset($c);
$m1 = memory_get_usage();
echo $m1-$m0,PHP_EOL;
++$i;
}
Output:
336
420
420
420
420
Though, as a language feature I would assume that in the second
iteration the memory occupied by the previous assignment would be freed
implicitly. Is that a wrong assumption?
------------------------------------------------------------------------
[2009-11-08 21:17:53] srina...@php.net
hmmm.. not sure, why u think there is a leak.
when u write this below code
$c = stream_context_create();
u do understand that underlying php engine need to do some processing
underneath and store the reference of this processing in $c variable.
this does require some memory consumption.
i guess, if u do some thing like and still no
$c = stream_context_create..
unset($c);
$m1 = memory_get_usage();
and still see memory leak , then let us know..
------------------------------------------------------------------------
The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
http://bugs.php.net/50111
--
Edit this bug report at http://bugs.php.net/?id=50111&edit=1
