#42390 [NoF->Opn]: GMP functions exhausts memory
| From: | cbimax at gmail dot com | Date: | Sun, 02 Dec 2007 14:16:54 +0000 |
| Subject: | #42390 [NoF->Opn]: GMP functions exhausts memory | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-120274@lists.php.net to get a copy of this message | ||
ID: 42390
User updated by: cbimax at gmail dot com
Reported By: cbimax at gmail dot com
-Status: No Feedback
+Status: Open
Bug Type: Math related
Operating System: Linux Gentoo K.2.6.20
PHP Version: 5.2.2
New Comment:
Well, I tested against PHP 5.2.5 and it fails:
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to
allocate 12 bytes) in ./gmp-test.php on line 10
when trying to execute the example code.
Previous Comments:
------------------------------------------------------------------------
[2007-08-31 01:00:01] php-bugs at lists dot php dot net
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
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[2007-08-23 09:42:42] jani@php.net
I can not reproduce this using latest PHP 5.2.4-dev.
So please try using this CVS snapshot:
http://snaps.php.net/php5.2-latest.tar.gz
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[2007-08-22 21:39:29] cbimax at gmail dot com
Description:
------------
Any gmp_* function running on PHP 5.2.2-r1 (compiled with GMP
extensions), throws after a few invokes "Fatal error: Allowed memory
size of <varies from 7M to 8M> bytes exhausted (tried to allocate 16
bytes) in <file.php>".
Reproduce code:
---------------
for( $i= 0; $i!= 100000; $i++ )
{
$node = gmp_init( $i );
$id = gmp_div( $node, '0x100000000' );
$edge = gmp_and( $node, '0xffffffff' );
$vert = gmp_div( $node, '0x1000' );
$path = gmp_and( $node, '0x00ff' );
$str_edge = gmp_strval( $edge );
$str_vert = gmp_strval( $vert );
$str_path = gmp_strval( $path );
echo "Graph -> ($str_edge, $str_vert, $str_path) \n";
}
Expected result:
----------------
The iterated procedure runs on PHP 5.1.x (and PHP 5.0.x) near to 1
million times per call.
In this case, it's only runs 500 times and then drop the Fatal error.
Actual result:
--------------
Fatal error: Allowed memory size of 8388608 bytes exhausted (tried to
allocate 16 bytes) in quixtor/compute-graph-map.php on line 443
(actually line 443 isn't a gmp related function, but it is called under
for() iteration which uses GMP functions).
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Edit this bug report at http://bugs.php.net/?id=42390&edit=1