Bug #69109 [Opn->Dup]: Unable to create any stream after reaching PHP_INT_MAX number of resources
Edit report at https://bugs.php.net/bug.php?id=69109&edit=1
ID: 69109
Updated by: cmb@php.net
Reported by: grzegorz129 at gmail dot com
Summary: Unable to create any stream after reaching
PHP_INT_MAX number of resources
-Status: Open
+Status: Duplicate
Type: Bug
Package: Streams related
Operating System: Linux
PHP Version: 5.6.6
-Assigned To:
+Assigned To: cmb
Block user comment: N
Private report: N
New Comment:
This ticket is actually a duplicate of bug #67845.
Previous Comments:
------------------------------------------------------------------------
[2020-03-19 12:38:35] cmb@php.net
The proper solution for this issue is to replace the still
exisiting resources with objects.
------------------------------------------------------------------------
[2015-02-23 22:40:23] grzegorz129 at gmail dot com
Related To: Bug #69056
------------------------------------------------------------------------
[2015-02-23 17:02:57] grzegorz129 at gmail dot com
Description:
------------
PHP assigns unique number for every resource created. Number are unique for application lifetime
(they aren't reused even after resource is gone).
After creating around 2147483647 resources without terminating application, every function returning
stream or maybe even resource (tested on fopen() & stream_socket_accept() w/ TCP server) stops
working and begins returning "resource(2147483647) of type (Unknown)".
Due to test duration (2h using fopen() and 30h using TCP sockets) it was performed on 32-bit Linux
(Debian Jessie) only. It probably affects 64-bit as well as other OSs.
Test script:
---------------
<?php
/* Tested under x86 CLI, configuration:
--disable-cgi --without-kerberos --disable-bcmath --with-bz2=/usr --disable-calendar --without-curl
--disable-dba --disable-exif --disable-ftp --without-gd --without-gettext --without-gmp
--without-iconv --without-imap --without-ldap --without-mcrypt --without-mssql --without-mysql
--without-mysqli --without-adabas --without-ibm-db2 --without-iodbc --disable-pcntl --disable-pdo
--without-pgsql --without-libedit --without-readline --disable-soap --without-xmlrpc
--without-openssl --without-zlib --disable-ctype --disable-xml --disable-filter --disable-json
--disable-dom --disable-libxml --disable-mbstring --disable-mbregex --disable-simplexml
--disable-hash --without-bz2 --disable-all --without-pear --enable-cli --enable-sockets
--enable-debug
*/
while(true) {
$clt = fopen("/dev/null", "w"); //Also tested with
stream_socket_accept($server)
$cltInt = (int)$clt;
var_dump($clt, $cltInt);
fclose($clt);
}
Actual result:
--------------
resource(5) of type (stream)
int(5)
(...)
resource(2147483647) of type (Unknown)
int(2147483647)
Warning: fclose(): 2147483647 is not a valid stream resource in /root/stream_bug.php on line 11
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=69109&edit=1
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