Bug #55764 [NEW]: Review ZEND_MM_LONG_CONST on 64 bit

From: Date: Thu, 22 Sep 2011 16:46:59 +0000
Subject: Bug #55764 [NEW]: Review ZEND_MM_LONG_CONST on 64 bit
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-163792@lists.php.net to get a copy of this message 
From:             sixd
Operating system: All
PHP version:      trunk-SVN-2011-09-22 (SVN)
Package:          Scripting Engine problem
Bug Type:         Bug
Bug description:Review ZEND_MM_LONG_CONST on 64 bit

Description:
------------
Pointed out by Hannes on #php.pecl is a comment in
http://pecl.php.net/bugs/bug.php?id=12821 by
skatta72 at luukku dot
com as follows:

   "I think I found this one. It's a missing L in Zend/zend_alloc.c:

    define ZEND_MM_LONG_CONST(x)      (x##L)

    In 64bit system it should be

    define ZEND_MM_LONG_CONST(x)      (x##LL)

    I found with gdb that the size - variable was way off where
    freeing a memory block and the resulting pointer caused the seg
    fault. Since that change, no crashes.

    This is inside the Zend memory management code. I wouldn't be
    surprised if it causes many other problems that occur randomly
    with php on 64-bit platform."

Dmitry, can you review this?


-- 
Edit bug report at https://bugs.php.net/bug.php?id=55764&edit=1
-- 
Try a snapshot (PHP 5.4):            https://bugs.php.net/fix.php?id=55764&r=trysnapshot54
Try a snapshot (PHP 5.3):            https://bugs.php.net/fix.php?id=55764&r=trysnapshot53
Try a snapshot (trunk):              https://bugs.php.net/fix.php?id=55764&r=trysnapshottrunk
Fixed in SVN:                        https://bugs.php.net/fix.php?id=55764&r=fixed
Fixed in SVN and need be documented: https://bugs.php.net/fix.php?id=55764&r=needdocs
Fixed in release:                    https://bugs.php.net/fix.php?id=55764&r=alreadyfixed
Need backtrace:                      https://bugs.php.net/fix.php?id=55764&r=needtrace
Need Reproduce Script:               https://bugs.php.net/fix.php?id=55764&r=needscript
Try newer version:                   https://bugs.php.net/fix.php?id=55764&r=oldversion
Not developer issue:                 https://bugs.php.net/fix.php?id=55764&r=support
Expected behavior:                   https://bugs.php.net/fix.php?id=55764&r=notwrong
Not enough info:                     https://bugs.php.net/fix.php?id=55764&r=notenoughinfo
Submitted twice:                     https://bugs.php.net/fix.php?id=55764&r=submittedtwice
register_globals:                    https://bugs.php.net/fix.php?id=55764&r=globals
PHP 4 support discontinued:          https://bugs.php.net/fix.php?id=55764&r=php4
Daylight Savings:                    https://bugs.php.net/fix.php?id=55764&r=dst
IIS Stability:                       https://bugs.php.net/fix.php?id=55764&r=isapi
Install GNU Sed:                     https://bugs.php.net/fix.php?id=55764&r=gnused
Floating point limitations:          https://bugs.php.net/fix.php?id=55764&r=float
No Zend Extensions:                  https://bugs.php.net/fix.php?id=55764&r=nozend
MySQL Configuration Error:           https://bugs.php.net/fix.php?id=55764&r=mysqlcfg

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