From: jim-bo at hotpop dot com
Operating system: Linux Debian Etch
PHP version: 5.1.6
PHP Bug Type: CGI related
Bug description: memory leak in fgets when using cli
Description:
------------
Using cli on debian etch it seems that fgets leaks memory.
I have replaced fgets with stream_get_line and it seems to not leak.
Please forgive me if this is a programming error on my behalf...but i
can't see it.
PHP 5.1.6-1 (cli) (built: Sep 1 2006 13:52:26)
Copyright (c) 1997-2006 The PHP Group
Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies
Reproduce code:
---------------
<?
$descriptorSpec = array(
0 => array("pipe", "r"), // stdin is a pipe that
the child process will read from
1 => array("pipe", "w"), // stdout is a pipe that
the child process will write to
2 => array("pipe", "w") // stderr is a pipe that
the child process will write to
);
for ($i=0;$i<20;++$i)
{
$process = proc_open('/usr/bin/uptime', $descriptorSpec, $pipes);
if (is_resource($process))
{
fclose($pipes[0]);
while(!feof($pipes[1]))
$stdout .= fgets($pipes[1], 1024);
fclose($pipes[1]);
fclose($pipes[2]);
}
$returnValue = proc_close($process);
unset($returnValue, $stdout, $stderr, $process, $pipes[0],
$pipes[1], $pipes[2]);
print $i . ' ==> ' . memory_get_usage() . "\r\n";
}
?>
Expected result:
----------------
0 ==> 41344
1 ==> 41408
2 ==> 41408
3 ==> 41408
4 ==> 41408
5 ==> 41408
6 ==> 41408
7 ==> 41408
8 ==> 41408
9 ==> 41408
10 ==> 41408
11 ==> 41408
12 ==> 41408
13 ==> 41408
14 ==> 41408
15 ==> 41408
16 ==> 41408
17 ==> 41408
18 ==> 41408
19 ==> 41408
(this is the actual result when replacing fgets with stream_get_line)
Actual result:
--------------
0 ==> 41240
1 ==> 41368
2 ==> 41432
3 ==> 41496
4 ==> 41560
5 ==> 41624
6 ==> 41688
7 ==> 41752
8 ==> 41816
9 ==> 41880
10 ==> 41944
11 ==> 42008
12 ==> 42072
13 ==> 42136
14 ==> 42200
15 ==> 42264
16 ==> 42328
17 ==> 42392
18 ==> 42456
19 ==> 42520
--
Edit bug report at http://bugs.php.net/?id=38962&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=38962&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=38962&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=38962&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=38962&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=38962&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=38962&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=38962&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=38962&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=38962&r=support
Expected behavior: http://bugs.php.net/fix.php?id=38962&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=38962&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=38962&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=38962&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=38962&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=38962&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=38962&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=38962&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=38962&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=38962&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=38962&r=mysqlcfg
