|  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login
Bug #57855 PDO_MYSQL causing Apache segfault
Submitted: 2007-09-28 16:38 UTC Modified: 2008-05-13 09:03 UTC
From: jon dot bertsch at ucop dot edu Assigned:
Status: Not a bug Package: PDO_MYSQL (PECL)
PHP Version: 5.2.1 OS: SUSE 9
Private report: No CVE-ID: None
 [2007-09-28 16:38 UTC] jon dot bertsch at ucop dot edu
After runnig the pecl install PDO_MYSQl command the package is 

After adding the extension line to php.ini and restarting 
apache restart fails.

I have installed the same package on a different server 
sucessfully. They are pretty much identical. However, the .so 
that gets built for the current PDO_MYSQL download is 
different in size between the two machines. 

Reproduce code:
Apache error log:

 [notice] caught SIGTERM, shutting down
[notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec2)
/usr/sbin/httpd2-prefork: symbol lookup error: /usr/local/lib/php/extensions/no-debug-non-zts-20060613/ undefined symbol: php_pdo_declare_long_constant
[notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec2)

 [notice] Apache/2.0.49 (Linux/SuSE) configured -- resuming normal operations

Expected result:

Actual result:
No restart of apache

/usr/sbin/rcapache2 start
Starting httpd2 (prefork)        failed


Add a Patch

Pull Requests

Add a Pull Request


AllCommentsChangesGit/SVN commitsRelated reports
 [2007-10-22 11:28 UTC] crescentfreshpot at yahoo dot com
Same problem with php 5.2.4 on Red Hat 9.

php configured with:
./configure \
 --with-config-file-path=/etc/httpd/conf \
 --with-apxs2=/usr/sbin/apxs \
 --with-libxml-dir=/usr/lib \
 --with-zlib \
 --with-mysql \
 --with-libdir=lib64 \
 --enable-pdo=shared \
 --with-pdo-sqlite=shared \

pdo_mysql installed with:
pecl install pdo_mysql
 [2007-10-30 12:02 UTC] matt at echristianwebhosting dot com
Experiencing this error as well with php5.2.4 on CentOS Enterprise 3.9.
 [2007-11-30 17:33 UTC] cebesius at cebesius dot com
Experiencing this bug on Ubuntu 7.10 PHP Version 5.2.3-1ubuntu6.1

After adding "" to php.ini, Apache2 fails to start.  When running php -a, I get:

php: symbol lookup error: /usr/lib/php5/20060613/ undefined symbol: php_pdo_declare_long_constant
 [2008-01-21 07:09 UTC] sunny at hostingzoom dot com
PHP 5.2.4
CentOS release 4.6 (Final) PHP 5.2.4
php -v
php: symbol lookup error: /usr/local/lib/php/extensions/no-debug-non-zts-20020429/ undefined symbol: php_pdo_declare_long_constant
 [2008-02-21 12:34 UTC] aw at anexia dot at
Same Problem here.

i recompiled php with "... --with-pdo-mysql ..." (without pecl install PDO_MYSQL) and now it works.

however: pecl install... fails
 [2008-05-11 03:30 UTC] michaelbaker at westnet dot com dot au
For those of you having that problem on Ubuntu/Debian I noticed when installing php-pear from Aptitude it also installed php4-dev & php4-common which is causing these PDO errors on compile time... apt-get rmeove php4-dev php4-common then pecl install... Should fix it also note the php5-mysql package provides PDO
 [2008-05-13 09:03 UTC] johannes at schlueters dot de
Problem seems to be related to Ubuntu's packages.
 [2008-07-11 09:52 UTC] dsutherland at ebuyer dot com
FWIW I had this issue (it appears to be caused by an Ubuntu update) and fixed it by simply re-installing both PDO_mysql and PDO i.e.:

# pecl uninstall PDO_mysql
# pecl uninstall PDO
# pecl install PDO
# pecl install PDO_mysql
 [2008-07-21 21:55 UTC] dbeecher at tekops dot com
This problem is not bogus and is not a unbuntu issue.  It happens on multiple vendor versions of Linux, Sunos and HPUX.  I have seen it on all of them.  After 3 days I finally figured it out:  This problem is caused by an incompatibility between the embedded PDO in php and the PDO modules.

If you compile PHP with --disable-pdo and then use PEAR/PECL to add PDO and PDO_MYSQL, PDO_INFORMIX, etc., the all work well and it solves this issue.

I have done it on several versions of Linux and HPUX.

I just did it today with php-5.2.4:

PHP 5.2.4 (cli) (built: Jul 21 2008 21:19:07) 
Copyright (c) 1997-2007 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2007 Zend Technologies

 php -i |egrep "pdo|PDO"
Configure Command =>  './configure'  '--disable-pdo' '--with-apxs2=/usr/local/apache2/bin/apxs' '--with-openssl=/usr' '--enable-force-cgi-redirect' '--with-gd' '--with-jpeg-dir=/usr/lib' '--with-zlib' '--enable-bcmath' '--enable-mbstring=all' '--with-curl'
PDO support => enabled
PDO drivers => mysql, informix
pdo_informix support => enabled
PDO Driver for MySQL, client library version => 5.0.51a

Good Luck,

David Beecher, Sr. Engineer
TekOps, Inc.

On time, under budget, and according to specification!
PHP Copyright © 2001-2024 The PHP Group
All rights reserved.
Last updated: Sun Apr 14 07:01:28 2024 UTC