Bug #72466 [NEW]: Memory leak
From: rusa959 at gmail dot com
Operating system: Ubuntu 16.04 LTS
PHP version: 5.6.22
Package: *General Issues
Bug Type: Bug
Bug description:Memory leak
Description:
------------
In php versions 7.0.6, 5.6.22, 5.6.16, 5.4.35
I have construct object that have anonymous function in his field named
"callback".
When i am trying to unset object - object is still exists, memory that
allocated to object is not released.
In php version 5.3.10 memory is released.
Test script:
---------------
<?php
class Leak
{
protected $callback;
public function set()
{
$this->callback = function(){};
}
}
$base_usage = memory_get_usage();
for($i=0;$i<12;$i++) {
echo 'step-1 ' . (memory_get_usage() - $base_usage) . PHP_EOL;
$leak = new Leak();
$leak->set();
unset($leak);
echo 'step-2 ' . (memory_get_usage() - $base_usage) . PHP_EOL;
}
echo 'step-3 ' . (memory_get_usage() - $base_usage) . PHP_EOL;
Expected result:
----------------
step-1 344
step-2 840
step-1 840
step-2 840
step-1 840
step-2 840
step-1 840
step-2 840
step-1 840
step-2 840
step-1 840
....
Actual result:
--------------
step-1 344
step-2 840
step-1 840
step-2 1328
step-1 1328
step-2 1816
step-1 1816
step-2 2304
step-1 2304
step-2 2792
step-1 2792
step-2 3280
....
--
Edit bug report at https://bugs.php.net/bug.php?id=72466&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72466&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72466&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72466&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=72466&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=72466&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=72466&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=72466&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=72466&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=72466&r=support
Expected behavior: https://bugs.php.net/fix.php?id=72466&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=72466&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=72466&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=72466&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72466&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=72466&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=72466&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=72466&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=72466&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=72466&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=72466&r=mysqlcfg
Thread (4 messages)
- rusa959 at gmail dot com