Edit report at http://bugs.php.net/bug.php?id=51248&edit=1
ID: 51248
Updated by: and...@php.net
Reported by: mbecc...@php.net
Summary: Segmentation fault in mysql_fetch_array
-Status: Assigned
+Status: Feedback
Type: Bug
Package: MySQL related
Operating System: FreeBSD 6.2
PHP Version: 5.3.2
Assigned To: mysql
Block user comment: N
New Comment:
Again, no crash
and...@vihren:~/dev/php5.3-201010130830> $ ./php a.php
mysql version: 5.1.44
and...@vihren:~/dev/php5.3-201010130830> $ cat config.nice
#! /bin/sh
#
# Created by configure
CC='/usr/bin/llvm-gcc' \
'./configure' \
'--with-mysql=mysqlnd' \
'--with-mysqli=mysqlnd' \
'--disable-libxml' \
'--disable-dom' \
'--disable-simplexml' \
'--disable-xml' \
'--disable-xmlreader' \
'--disable-xmlwriter' \
'--without-pear' \
"$@"
and...@vihren:~/dev/php5.3-201010130830> $ uname -a
Darwin vihren 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23 18:28:53
PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386
The system is a MacOS X 10.6.something
Previous Comments:
------------------------------------------------------------------------
[2010-10-07 04:33:41] php at group dot apple dot com
Thank you for attempting to reproduce on Mac OS X. The issue may be the
choice of
compiler, as the problem more readily reproduces with LLVM, which claims
to be
much more aggressive in its stack protection than GCC. One option would
be to try
to build using LLVM as the compiler, i.e.:
CC=/usr/bin/llvm-gcc ./configure ...
------------------------------------------------------------------------
[2010-10-06 14:17:47] and...@php.net
No crash on 64bit MacOS X 10.6.4 , with or without the flags, libmysql.
MySQL is 5.5.2
------------------------------------------------------------------------
[2010-10-06 13:54:59] and...@php.net
forgot to mention that I used the -g -fstack-protector-all
------------------------------------------------------------------------
[2010-10-06 13:52:59] and...@php.net
I get no crash on Ubuntu 9.10 x86, PHP 5.3.4-dev, MySQL 5.1.51 . Neither
with libmysql nor with mysqlnd, but by looking at the stacktrace it
should not matter much. Will get it checked on Mac OS
------------------------------------------------------------------------
[2010-09-30 11:53:28] aaphp at mailinator dot com
Received this using 5.3.3 on Apache 2.2.16 w/ Cpanel; CENTOS 4.8 x86_64
and osCommerce.
Caused segfaults logged to /var/log/messages:
Sep 29 20:23:22 hostname kernel: conftest[30619]: segfault at
0000000000000001 rip 0000000000405dae rsp 0000007fbffff250 error 4
Sep 29 21:36:28 hostname kernel: php[20444]: segfault at
0000002a00000014 rip 0000000000741da3 rsp 0000007fbfffabb0 error 4
And php errors in /var/log/httpd/error_log:
[Wed Sep 29 20:28:02 2010] [error] [client x.x.x.x] Premature end of
script headers: php5
The errors are consistent - nothing loads on the site but 500 Internal
Server Errors. Did not go away until PHP was downgraded to 5.2.14 or
the following change made to the script:
The Line:
return mysql_fetch_array($db_query, MYSQL_ASSOC);
Once changed to:
return mysql_fetch_assoc($db_query);
The error ceases & site functions as expected.
------------------------------------------------------------------------
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http://bugs.php.net/bug.php?id=51248
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