From: inqualab1985 at gmail dot com
Operating system: Microsoft Window 2000 SP4
PHP version: 5.2.6
PHP Bug Type: Program Execution
Bug description: exec() hang the apache
Description:
------------
Hi! PHP Team
I am facing a problem of apache hang up due to exec() function.
I am using PHP 5.2.5 and Apache 2.2 on MS Window 2000 SP4 & also on MS
Window XP.
The problem is that I have to execute a exe, for which I have use
exec(). Normally it works Fine, but sometime (randomly) it hang up. It
will lock the apache and if we call the same page or any other page of php
having exec(), it hang up at the line where exec() function is used. If we
commented the line having exec(), then the page run & loaded correctly.
The problem also become critical because there is no error for this.
Also none of the error handling & logging mechanism works.
The only solution to this problem is to restart the Apache.
I am providing you as much as information as possible to catch the problem
correctly.
Reproduce code:
---------------
$exeFilePath = realpath("../sample.exe");
if (eregi("win", PHP_OS))
$command = "\"\"$exeFilePath\" argument1\"";
else
$command = "\"$exeFilePath\" argument1";
$output = null;
$returnVal = null;
$result = exec($command,$output,$returnVal);
if($returnVal !=0)
echo "Error";
else
echo $output[0];
echo "end of the program";
Expected result:
----------------
it will show the output of exe for particular argument.
Actual result:
--------------
Normally it works correctly as expected but sometime the the execution of
the page hang at line "$result = exec($command,$output,$returnVal);" .
After this has happen I am not able to run any script that will use
the exec(). In all scripts apache hangs at exec() function, do not matter
which exe will be called.
--
Edit bug report at http://bugs.php.net/?id=44942&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=44942&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=44942&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=44942&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=44942&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=44942&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=44942&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=44942&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=44942&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=44942&r=support
Expected behavior: http://bugs.php.net/fix.php?id=44942&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=44942&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=44942&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=44942&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44942&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=44942&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=44942&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=44942&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=44942&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=44942&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=44942&r=mysqlcfg
