Bug #55764 [Fbk->NoF]: Review ZEND_MM_LONG_CONST on 64 bit
| From: | php-bugs at lists dot php dot net | Date: | Mon, 18 Feb 2013 00:35:02 +0000 |
| Subject: | Bug #55764 [Fbk->NoF]: Review ZEND_MM_LONG_CONST on 64 bit | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-177036@lists.php.net to get a copy of this message | ||
Edit report at https://bugs.php.net/bug.php?id=55764&edit=1
ID: 55764
Updated by: php-bugs@lists.php.net
Reported by: sixd@php.net
Summary: Review ZEND_MM_LONG_CONST on 64 bit
-Status: Feedback
+Status: No Feedback
Type: Bug
Package: Scripting Engine problem
Operating System: All
PHP Version: trunk-SVN-2011-09-22 (SVN)
Assigned To: dmitry
New Comment:
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
Previous Comments:
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[2011-09-23 07:23:19] dmitry@php.net
I think you are wrong.
zend_alloc works with pointers and size_t which have the same size as long on both 32-bit and 64-bit
GCC.
Also size of "long" and "long long" is the same on 64-bit GCC.
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[2011-09-22 16:46:59] sixd@php.net
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?
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Edit this bug report at https://bugs.php.net/bug.php?id=55764&edit=1