ID: 35646
User updated by: vovik at getart dot ru
Reported By: vovik at getart dot ru
-Status: Feedback
+Status: Open
Bug Type: Apache2 related
Operating System: RHEL 4
PHP Version: 4.4.1
New Comment:
I've tried latest php4 snapshot (php4-STABLE-200512131136) and got the
same result. But in php5 this issue is solved.
I've compared sources of php4 and php5. Solution looks very simple.
*** php4-STABLE-200512131136/Zend/zend_alloc.c.orig 2005-12-13
12:56:25.375626097 +0000
--- php4-STABLE-200512131136/Zend/zend_alloc.c 2005-12-13
12:57:23.877054536 +0000
***************
*** 538,543 ****
--- 538,544 ----
#if MEMORY_LIMIT
AG(memory_exhausted)=0;
+ AG(allocated_memory_peak)=0;
#endif
Previous Comments:
------------------------------------------------------------------------
[2005-12-13 09:30:57] [EMAIL PROTECTED]
Please try using this CVS snapshot:
http://snaps.php.net/php5.1-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php5.1-win32-latest.zip
------------------------------------------------------------------------
[2005-12-13 09:05:35] vovik at getart dot ru
I'll try to explain the issue more clear.
If one php script (heavy.php) tried to allocate memory more than
memory_limit php.ini setting it will exited with fatal error ("Allowed
memory size exhausted"). In apache access_log it reports highest memory
value used (close to php memory_limit).
Another script (light.php), which allocate small amount of memory,
executed after. And it will report in access_log the same high value as
heavy.php. Obviously, it happens only if light.php executed on the same
apache child.
If i try to call memory_get_usage() in light.php - it reports normal
low value. But in access_log it still the same as heavy.php. All
following requests to this apache child reports one value for memory
peak in access_log.
As result, access_log looks like this:
"GET /heavy.php HTTP/1.1" 200 - php(806944)
"GET /light.php HTTP/1.1" 200 16 php(806944)
"GET /something.php HTTP/1.1" 200 160 php(806944)
... and so on ...
It looks like php keeps allocated memory peak and not drops it after
fatal error due to memory limitation.
------------------------------------------------------------------------
[2005-12-12 18:28:08] [EMAIL PROTECTED]
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
Memory isn't _really_ freed but during shutdown.
------------------------------------------------------------------------
[2005-12-12 14:51:17] vovik at getart dot ru
Description:
------------
I using 'LogFormat "%h %l %u %t \"%r\" %>s %b
php(%{mod_php_memory_usage}n)" common' in httpd.conf for logging php
memory usage.
If php script exited on fatal error due to memory limitation,
%{mod_php_memory_usage}n keeps high value for all following requests to
this apache child.
Reproduce code:
---------------
if (@$_GET["test"] == 1) {
print "Allocated: ".memory_get_usage();
} else {
ini_set("memory_limit", 1048576 * 100); // 100K
// PHP exited in file_get_contents with message:
// PHP Fatal error: Allowed memory size of 104857600 bytes
exhausted
$bigfile = file_get_contents("/etc/termcap"); // this file is about
800K on my host
}
First, run this script without parameter, next with ?test=1. Check
apache log then.
Expected result:
----------------
[12/Dec/2005:13:28:47 +0000] "GET /test.php HTTP/1.1" 200 -
php(806944)
[12/Dec/2005:13:28:57 +0000] "GET /test.php?test=1 HTTP/1.1" 200 16
php(*****) // not the same as previous, should be much lower
Actual result:
--------------
[12/Dec/2005:13:28:47 +0000] "GET /test.php HTTP/1.1" 200 -
php(806944)
[12/Dec/2005:13:28:57 +0000] "GET /test.php?test=1 HTTP/1.1" 200 16
php(806944)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=35646&edit=1
