ID: 37929
User updated by: joe at estara dot com
Reported By: joe at estara dot com
-Status: Feedback
+Status: Open
Bug Type: Apache2 related
Operating System: Linux
PHP Version: 5.1.4, 4.4.0
New Comment:
Mike:
Please just run this below script on your machine, and then use top,
hit 'M' to sort by memory and apache will be the top memory user. hit
the script 10 times and your machine will start swapping to death.
This appears to be apache related: if the same script is hit, it
doesn't leak MORE memory, it stays at the outrageously high level it
got to the first time.
<?php
ini_set("memory_limit", "64M");
function make_arr() {
for($i=0; $i<396768; $i++)
$a[sprintf("%05d",$i)] = array(0 => "PHPLEAKS923889239823", 1
=>
"PHPLEAK2349082349898");
return $a;
}
for($i=0;$i<10;$i++)
$zip[$i] = make_arr();
for($i=0;$i<10;$i++)
preg_match("/asdfl/", $zip[$i]["00601"][0]);
?>
Previous Comments:
------------------------------------------------------------------------
[2006-07-20 15:23:40] [EMAIL PROTECTED]
Not enough information was provided for us to be able
to handle this bug. Please re-read the instructions at
http://bugs.php.net/how-to-report.php
If you can provide more information, feel free to add it
to this bug and change the status back to "Open".
Thank you for your interest in PHP.
Any evidence like valgrind etc?
The OS releases memory when it needs it.
------------------------------------------------------------------------
[2006-07-06 18:27:57] joe at estara dot com
Arrays of arrays leak memory in many PHP versions.
------------------------------------------------------------------------
[2006-07-01 00:15:27] joe at estara dot com
Here, fully contained version that will make a 131M leak in 12 lines.
<?php
ini_set("memory_limit", "64M");
function make_arr() {
for($i=0; $i<396768; $i++)
$a[sprintf("%05d",$i)] = array(0 => "PHPLEAKS923889239823", 1
=> "PHPLEAK2349082349898");
return $a;
}
for($i=0;$i<10;$i++)
$zip[$i] = make_arr();
for($i=0;$i<10;$i++)
preg_match("/asdfl/", $zip[$i]["00601"][0]);
?>
------------------------------------------------------------------------
[2006-07-01 00:00:26] joe at estara dot com
It's 8 lines without comments. You want me to write a script to make
the data file instead of just downloading it?
<?php
ini_set("memory_limit", "64M");
$s = file_get_contents("ziplatlong");
$z = unserialize($s);
for($i=0;$i<10;$i++)
$zip[$i] = unserialize($s);
for($i=0;$i<10;$i++)
preg_match("/asdfl/", $zip[$i]["00601"][0]);
?>
------------------------------------------------------------------------
[2006-06-30 23:17:27] [EMAIL PROTECTED]
Please provide _SHORT_ and complete reproduce script.
A proper reproducing script starts with <?php and ends with ?>, is max.
10-20 lines long and does not require any external resources such as
databases, etc.
------------------------------------------------------------------------
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/37929
--
Edit this bug report at http://bugs.php.net/?id=37929&edit=1
