Edit report at https://bugs.php.net/bug.php?id=71196&edit=1
ID: 71196
Updated by: [email protected]
Reported by: [email protected]
Summary: Memory leak with out-of-order live ranges
-Status: Assigned
+Status: Closed
Type: Bug
Package: Scripting Engine problem
Operating System: Irrelevant
PHP Version: master-Git-2015-12-22 (Git)
Assigned To: dmitry
Block user comment: N
Private report: N
New Comment:
Automatic comment on behalf of [email protected]
Revision: http://git.php.net/?p=php-src.git;a=commit;h=aa4a83fec75aa1fc192d762ad70d5c556dc9e29a
Log: Fixed bug #71196 (Memory leak with out-of-order live ranges)
Previous Comments:
------------------------------------------------------------------------
[2015-12-22 12:36:33] [email protected]
Description:
------------
Outputting live ranges gives me:
LIVE RANGES:
6: L6 - L7
(tmp/var)
3: L2 - L9
Now, if there is an exception thrown between opline 2 and 5, http://lxr.php.net/xref/PHP_MASTER/Zend/zend_execute.c#2586 has a condition with a break;, hence cleanup won't be done for temporary 3 (the array).
Removing that break; fixes it, but maybe there is a better fix?
Test script:
---------------
try {
$a = "1";
[1, (y().$a.$a) . ($a.$a)];
} catch (Error $e) {
var_dump($e->getMessage());
}
Actual result:
--------------
HashTable leaks:
[Tue Dec 22 13:21:38 2015] Script: '/Users/Bob/php-src-X/_'
Zend/zend_vm_execute.h(7076) : Freeing 0x10BC5A360 (56 bytes), script=/Users/Bob/php-src-X/_
[Tue Dec 22 13:21:38 2015] Script: '/Users/Bob/php-src-X/_'
/Users/Bob/php-src-X/Zend/zend_hash.c(133) : Freeing 0x10BC60A00 (264 bytes), script=/Users/Bob/php-src-X/_
=== Total 2 memory leaks detected ===
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=71196&edit=1
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