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Bug #32318 memory_limit does not work
Submitted: 2005-03-15 17:33 UTC Modified: 2005-03-19 23:37 UTC
From: camka at email dot ee Assigned:
Status: Not a bug Package: Scripting Engine problem
PHP Version: 4.3.10 OS: Linux
Private report: No CVE-ID: None
View Developer Edit
 [2005-03-15 17:33 UTC] camka at email dot ee 
Description:
------------
php compiled with --enable-memory-limit, but setting the value of memory_limit more then certain number won't affect scripts.

tried set the value of memory_limit in both php.ini and script body - nothing helped.

Reproduce code:
---------------
<?php
    echo ini_get('memory_limit'),"\n";
    ini_set('memory_limit', 100000000);
    echo ini_get('memory_limit'),"\n";
    ini_set('display_errors', 1);
    ini_set('error_reporting', E_ALL);
    function a()
    {
        echo 'fck oyu!';
    }
    register_shutdown_function('a');
    $zz = 'u';
    for($i=1; $i<1000; $i++)
    {
        $zz .= $zz;
        echo $i,' - ',  memory_get_usage(),"<br>\n";flush();
    }

?>


Expected result:
----------------
allocate at least 100MB of memory and die if exceeded.

Actual result:
--------------
100M
100000000
1 - 12912<br>
2 - 12912<br>
3 - 12920<br>
4 - 12944<br>
5 - 12960<br>
6 - 13032<br>
7 - 13096<br>
8 - 13224<br>
9 - 13480<br>
10 - 13992<br>
11 - 15016<br>
12 - 17064<br>
13 - 21160<br>
14 - 29352<br>
15 - 45736<br>
16 - 78504<br>
17 - 144040<br>
18 - 275112<br>
19 - 537256<br>
20 - 1061544<br>
21 - 2110120<br>
22 - 4207272<br>
23 - 8401576<br>


error_log:
FATAL:  erealloc():  Unable to allocate 16777217 bytes

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 [2005-03-15 23:56 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip

This works fine here..
 [2005-03-16 23:20 UTC] camka at email dot ee 
No. Last snapshot didn't help either. The situation is the same. On other servers code works allrigh though. What could be the clue here?
 [2005-03-17 09:44 UTC] sniper@php.net 
Broken GCC or some other tool in that system.
No PHP bug if it works elsewhere..
 [2005-03-17 17:35 UTC] camka at email dot ee 
the apache was configured as:

'./configure' '--bindir=/usr/bin' '--mandir=/usr/share/man' '--with-apache=../apache_1.3.33' '--with-config-file-path=/etc/apache' '--with-gnu-ld' '--without-pear' '--enable-track-vars' '--enable-memory-limit' '--enable-short-tags' '--enable-inline-optimization' '--disable-display-source' '--disable-url-fopen-wrapper' '--disable-cli' '--disable-posix' '--with-pcre-regex' '--disable-ctype' '--disable-overload' '--disable-tokenizer' '--disable-ipv6' '--disable-simplexml' '--without-sqlite' '--with-mysql=/usr' '--disable-session' '--enable-sockets' '--without-zlib' '--with-iconv' '--enable-mbstring=all' '--enable-mbregex'

software versions:
- fedora-release-2-4
- gcc-3.3.3-7
- binutils-2.15.90.0.3-5

perhaps any other information to provide?
 [2005-03-19 23:37 UTC] camka at email dot ee 
sorry. I wrote that the error occurres only on one computer. It appeared to be wrong. It goes up on several servers with similar configuration i described in previous post.
 
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